Most people are now aware that indoor air pollution is an issue of growing concern and increased visibility. Many companies are marketing products and services intended to improve the quality of your indoor air. You have probably seen an advertisement, received a coupon in the mail, or been approached directly by a company offering to clean your air ducts as a means of improving your home's indoor air quality. These services typically but not always range in cost from $450 to $1,000 per heating and cooling system, depending on the services offered, the size of the system to be cleaned, system accessibility, climatic region, and level of contamination.
Duct cleaning generally refers to the cleaning of various heating and cooling system components of forced air systems, including the supply and return air ducts and registers, grilles and diffusers, heat exchangers heating and cooling coils, condensate drain pans (drip pans), fan motor and fan housing, and the air handling unit housing.
If not properly installed, maintained, and operated, these components may become contaminated with particles of dust, pollen or other debris. If moisture is present, the potential for microbiological growth (e.g., mold) is increased and spores from such growth may be released into the home's living space. Some of these contaminants may cause allergic reactions or other symptoms in people if they are exposed to them. If you decide to have your heating and cooling system cleaned, it is important to make sure the service provider agrees to clean all components of the system and is qualified to do so. Failure to clean a component of a contaminated system can result in re-contamination of the entire system, thus negating any potential benefits. Methods of duct cleaning vary, although standards have been established by industry associations concerned with air duct cleaning. Typically, a service provider will use specialized tools to dislodge dirt and other debris in ducts, then vacuum them out with a high-powered vacuum cleaner.
In addition, the service provider may propose applying chemical biocides, designed to kill microbiological contaminants, to the inside of the ductwork and to other system components. Some service providers may also suggest applying chemical treatments (sealants or other encapsulants) to seal or cover the inside surfaces of the air ducts and equipment housings because they believe the sealant will control mold growth or prevent the release of dirt particles or fibers from ducts. These practices have yet to be fully researched and you should be fully informed before deciding to permit the use of biocides or sealants in your air ducts. They should only be applied, if at all, after the system has been properly cleaned of all visible dust or debris.
Knowledge about the potential benefits and possible problems of air duct cleaning is limited. Since conditions in every home are different, it is impossible to generalize about whether or not air duct cleaning in your home would be beneficial.
If no one in your household suffers from allergies or unexplained symptoms or illnesses and if, after a visual inspection of the inside of the ducts, you see no indication that your air ducts are contaminated with large deposits of dust or mold (no musty odor or visible mold growth), having your air ducts cleaned is probably unnecessary. It is normal for the return registers to get dusty as dust-laden air is pulled through the grate. This does not indicate that your air ducts are contaminated with heavy deposits of dust or debris; the registers can be easily vacuumed or removed and cleaned.
On the other hand, if family members are experiencing unusual or unexplained symptoms or illnesses that you think might be related to your home environment, you should discuss the situation with your doctor. EPA has published Indoor Air Quality: An Introduction for Health Professionals that can be obtained free of charge. You may read our post series A Guide to Indoor Air Quality for guidance on identifying possible indoor air quality problems and ways to prevent or fix them.
You may consider having your air ducts cleaned simply because it seems logical that air ducts will get dirty over time and should occasionally be cleaned. While the debate about the value of periodic duct cleaning continues, no evidence suggests that such cleaning would be detrimental, provided that it is done properly.
On the other hand, if a service provider fails to follow proper duct cleaning procedures, duct cleaning can cause indoor air problems. For example, an inadequate vacuum collection system can release more dust, dirt, and other contaminants than if you had left the ducts alone. A careless or inadequately trained service provider can damage your ducts or heating and cooling system, possibly increasing your heating and air conditioning costs or forcing you to undertake difficult and costly repairs or replacements.
Thursday, December 27, 2012
Monday, December 24, 2012
Product Feature: Carrier Performance Fan Humidifier
Fan-Powered Humidifier Keeps Home Comfortable All Year
Models: HUMCCLFP, HUMCCSFPThe Performance Fan Humidifier blows moisture vapor directly into your ducts. This home humidifier was engineered to work with Carrier products for improved whole house comfort. Avoid static electricity shocks and enjoy optimum humidity levels year-round.
- Self-powered fan
- Front access door
- Low-noise operation
- Attractive, long-lasting, cover
- Optimum moisture distribution
- Small or large capacity models available
- Humidistat, Humiditrac™, Thermidistat™ and Infinity control options
- 5-year limited warranty on parts
Thursday, December 20, 2012
FAQ: What is AFUE?
AFUE or Annual Fuel Utilization Efficiency is a rating that reflects how efficient a gas furnace converts fuel to energy. A gas furnace with an AFUE of 95 means that approximately 95 percent of the fuel is utilized to provide warmth to your home, while the remaining 5 percent flows up the flue and into the atmosphere. Therefore you are actually using 95% of the fuel you are paying for and the other 5% is being wasted up the flue vent.
Tuesday, December 18, 2012
A Look At Source-Specific Controls: Formaldehyde - A Guide to Indoor Air Quality, Part Sixteen
Welcome back to our Guide to Indoor Air Quality series. Last time, we talked about household products. Time for part sixteen...
In homes, the most significant sources of formaldehyde are likely to be pressed wood products made using adhesives that contain urea-formaldehyde (UF) resins. Pressed wood products made for indoor use include: particleboard (used as subflooring and shelving and in cabinetry and furniture); hardwood plywood paneling (used for decorative wall covering and used in cabinets and furniture); and medium density fiberboard (used for drawer fronts, cabinets, and furniture tops). Medium density fiberboard contains a higher resin-to-wood ratio than any other UF pressed wood product and is generally recognized as being the highest formaldehyde-emitting pressed wood product.
Other pressed wood products, such as softwood plywood and flake or oriented strandboard, are produced for exterior construction use and contain the dark, or red/black-colored phenol-formaldehyde (PF) resin. Although formaldehyde is present in both types of resins, pressed woods that contain PF resin generally emit formaldehyde at considerably lower rates than those containing UF resin.
Since 1985, the Department of Housing and Urban Development (HUD) has permitted only the use of plywood and particleboard that conform to specified formaldehyde emission limits in the construction of prefabricated and mobile homes. In the past, some of these homes had elevated levels of formaldehyde because of the large amount of high-emitting pressed wood products used in their construction and because of their relatively small interior space.
The rate at which products like pressed wood or textiles release formaldehyde can change. Formaldehyde emissions will generally decrease as products age. When the products are new, high indoor temperatures or humidity can cause increased release of formaldehyde from these products.
During the 1970s, many homeowners had urea-formaldehyde foam insulation (UFFI) installed in the wall cavities of their homes as an energy conservation measure. However, many of these homes were found to have relatively high indoor concentrations of formaldehyde soon after the UFFI installation. Few homes are now being insulated with this product. Studies show that formaldehyde emissions from UFFI decline with time; therefore, homes in which UFFI was installed many years ago are unlikely to have high levels of formaldehyde now.
Some studies suggest that coating pressed wood products with polyurethane may reduce formaldehyde emissions for some period of time. To be effective, any such coating must cover all surfaces and edges and remain intact. Increase the ventilation and carefully follow the manufacturer instructions while applying these coatings. (If you are sensitive to formaldehyde, check the label contents before purchasing coating products to avoid buying products that contain formaldehyde, as they will emit the chemical for a short time after application.) Maintain moderate temperature and humidity levels and provide adequate ventilation. The rate at which formaldehyde is released is accelerated by heat and may also depend somewhat on the humidity level. Therefore, the use of dehumidifiers and air conditioning to control humidity and to maintain a moderate temperature can help reduce formaldehyde emissions. (Drain and clean dehumidifier collection trays frequently so that they do not become a breeding ground for microorganisms.) Increasing the rate of ventilation in your home will also help in reducing formaldehyde levels.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Formaldehyde
Formaldehyde is an important chemical used widely by industry to manufacture building materials and numerous household products. It is also a by-product of combustion and certain other natural processes. Thus, it may be present in substantial concentrations both indoors and outdoors. Sources of formaldehyde in the home include building materials, smoking, household products, and the use of unvented, fuel-burning appliances, like gas stoves or kerosene space heaters. Formaldehyde, by itself or in combination with other chemicals, serves a number of purposes in manufactured products. For example, it is used to add permanent-press qualities to clothing and draperies, as a component of glues and adhesives, and as a preservative in some paints and coating products.In homes, the most significant sources of formaldehyde are likely to be pressed wood products made using adhesives that contain urea-formaldehyde (UF) resins. Pressed wood products made for indoor use include: particleboard (used as subflooring and shelving and in cabinetry and furniture); hardwood plywood paneling (used for decorative wall covering and used in cabinets and furniture); and medium density fiberboard (used for drawer fronts, cabinets, and furniture tops). Medium density fiberboard contains a higher resin-to-wood ratio than any other UF pressed wood product and is generally recognized as being the highest formaldehyde-emitting pressed wood product.
Other pressed wood products, such as softwood plywood and flake or oriented strandboard, are produced for exterior construction use and contain the dark, or red/black-colored phenol-formaldehyde (PF) resin. Although formaldehyde is present in both types of resins, pressed woods that contain PF resin generally emit formaldehyde at considerably lower rates than those containing UF resin.
Since 1985, the Department of Housing and Urban Development (HUD) has permitted only the use of plywood and particleboard that conform to specified formaldehyde emission limits in the construction of prefabricated and mobile homes. In the past, some of these homes had elevated levels of formaldehyde because of the large amount of high-emitting pressed wood products used in their construction and because of their relatively small interior space.
The rate at which products like pressed wood or textiles release formaldehyde can change. Formaldehyde emissions will generally decrease as products age. When the products are new, high indoor temperatures or humidity can cause increased release of formaldehyde from these products.
During the 1970s, many homeowners had urea-formaldehyde foam insulation (UFFI) installed in the wall cavities of their homes as an energy conservation measure. However, many of these homes were found to have relatively high indoor concentrations of formaldehyde soon after the UFFI installation. Few homes are now being insulated with this product. Studies show that formaldehyde emissions from UFFI decline with time; therefore, homes in which UFFI was installed many years ago are unlikely to have high levels of formaldehyde now.
Health Effects of Formaldehyde
Formaldehyde, a colorless, pungent-smelling gas, can cause watery eyes, burning sensations in the eyes and throat, nausea, and difficulty in breathing in some humans exposed at elevated levels (above 0.1 parts per million). High concentrations may trigger attacks in people with asthma. There is evidence that some people can develop a sensitivity to formaldehyde. It has also been shown to cause cancer in animals and may cause cancer in humans.Reducing Exposure to Formaldehyde in Homes
Ask about the formaldehyde content of pressed wood products, including building materials, cabinetry, and furniture before you purchase them. If you experience adverse reactions to formaldehyde, you may want to avoid the use of pressed wood products and other formaldehyde-emitting goods. Even if you do not experience such reactions, you may wish to reduce your exposure as much as possible by purchasing exterior-grade products, which emit less formaldehyde. For further information on formaldehyde and consumer products, call the EPA Toxic Substance Control Act (TSCA) assistance line (202-554-1404).Some studies suggest that coating pressed wood products with polyurethane may reduce formaldehyde emissions for some period of time. To be effective, any such coating must cover all surfaces and edges and remain intact. Increase the ventilation and carefully follow the manufacturer instructions while applying these coatings. (If you are sensitive to formaldehyde, check the label contents before purchasing coating products to avoid buying products that contain formaldehyde, as they will emit the chemical for a short time after application.) Maintain moderate temperature and humidity levels and provide adequate ventilation. The rate at which formaldehyde is released is accelerated by heat and may also depend somewhat on the humidity level. Therefore, the use of dehumidifiers and air conditioning to control humidity and to maintain a moderate temperature can help reduce formaldehyde emissions. (Drain and clean dehumidifier collection trays frequently so that they do not become a breeding ground for microorganisms.) Increasing the rate of ventilation in your home will also help in reducing formaldehyde levels.
Next in this series... Pesticides
For most indoor air quality problems in the home, source control is the most effective solution. The upcoming posts in this series take a source-by-source look at the most common indoor air pollutants, their potential health effects, and ways to reduce levels in the home.*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Thursday, December 13, 2012
Tips on How to Operate Your Heat Pump
Your heat pump does not operate like other heating systems. In the heating mode, the heat pump removes heat from outside and transfers it to the air inside. Inthe cooling mde, the heat pump removes heat from the inside air and discharges it to the outside ar. The heating and cooling modes are controlled automatically by the indor thermostat setting.
The coils in your heat pump operate at lower heat levels than fossil fuel (Gas or Propane) systems. Air at the supply registers usually has a temperature ranging from 85° to 110°F in the winter.
Even outside winter air contains some heat. As outside airtemperature drops, the unit runs more to collect and deliver the necessary heat inside your home. Hence, the heatpump moves less heat incold weather. The balance point of the heat pump occurs when at full capacity, it supplies all the heat your home requires. As outside temperature drops below the balance point, the supplemental heat (Electric resistene heat, gas or oil backup) is required to maintain your thermostat setting.
If your heat pump has supplementary electric resistance heaters located in the air distribution system (air handler or fan coil unit), just ask a Howell's technician how the heaters are controlled.
Your heating system is a very specialized and expensive appliance. These tips will help you, but in case of breakdown you should contact a qualified, NATE Certified company to perform the work. One last tip, yes you are getting 7 tips for the price of 6.
Bonus: If you do require a repair, and do not have a regular service company: when you call, ask if they provide FLAT RATE PRICING! This is your safety blanket. Flat rate pricing is a standardized price book on all HVAC repairs. The benefit to you is that if whether the repair takes 10 minutes or 5 hours, you are only paying one price. You are not paying the service tech by the hour to milk you. Good luck this winter.
The coils in your heat pump operate at lower heat levels than fossil fuel (Gas or Propane) systems. Air at the supply registers usually has a temperature ranging from 85° to 110°F in the winter.
Even outside winter air contains some heat. As outside airtemperature drops, the unit runs more to collect and deliver the necessary heat inside your home. Hence, the heatpump moves less heat incold weather. The balance point of the heat pump occurs when at full capacity, it supplies all the heat your home requires. As outside temperature drops below the balance point, the supplemental heat (Electric resistene heat, gas or oil backup) is required to maintain your thermostat setting.
If your heat pump has supplementary electric resistance heaters located in the air distribution system (air handler or fan coil unit), just ask a Howell's technician how the heaters are controlled.
6 Very Easy Tips That Anyone Can Do
- Dirt is the #1 cause of system failure. Getting the proper amount of airflow across the indoor and outdoor coils is very important. Check your return air filter(s) every month. If you are using a standard 1" disposable filter then listen up. First, if it is dirty, then change it immediately. But if it is clean, then you should throw it away and BUY A BETTER FILTER! Remember, dirt in a filter is a good thing. That means that the dirt is not in your system. If you filter is clean, then unless you live in a vacuum the dirt is slipping through the cheap filters.
- Do not keep lamps near your thermostat. Light bulbs emit heat which is sensed by your thermostat, thus causing your thermostat to reach the set point temperature before the house has reached that temperature. Most digital, or programmable thermostats have a backlit display.
- Do not close off more than one supply register at a time, closing off more will restrict airflow too much for efficient operation.
- Keep return grilles free of blockage, such as pictures, sofas, or bookcases. Unrestricted airflow needs to flow back to the indoor unit.
- If your indoor unit is in your attic or your crawl space, inspect your exposed ductwork. You will lose on average over 35% of your heat through little duct leaks. Most common areas to check - the run-outs or the flexible ducts coming off of the main duct trunk. If you are unsure what you are looking at, or suspect that you have leakage and are not sure how to fix it, give us a call or contact a Howells Technician.
- Get on a routine maintenance schedule. Or,invest in your system's future with a maintenance contract, like our Energy Savings Plan Comfort Club Membership.
Your heating system is a very specialized and expensive appliance. These tips will help you, but in case of breakdown you should contact a qualified, NATE Certified company to perform the work. One last tip, yes you are getting 7 tips for the price of 6.
Bonus: If you do require a repair, and do not have a regular service company: when you call, ask if they provide FLAT RATE PRICING! This is your safety blanket. Flat rate pricing is a standardized price book on all HVAC repairs. The benefit to you is that if whether the repair takes 10 minutes or 5 hours, you are only paying one price. You are not paying the service tech by the hour to milk you. Good luck this winter.
Tuesday, December 11, 2012
Product Feature: Aprilaire Model 8126 Ventilation Control System
Get state-of-the-art control to keep your indoor air as fresh as possible. Installed as part of your home’s heating and cooling system, the Aprilaire Ventilation Controller makes decisions regarding when—and how long—to ventilate. It does this through continuous montinoring of indoor relative humdity, outdoor temperature, and user-friendly settings.
Features
An Aprilaire Ventilation Control System allows you to manage the quality of your home’s air year-round, with little effort. An Aprilaire Ventilation Controller:
- Will not ventilate if the outdoor temperature is above 100° F
- Will not ventilate if the outdoor temperature is below 0° F
- Only ventilates if a call for heat is received by your central heating system when the outdoor temperature is between 0° F and 20°
- Will not ventilate if the outdoor air will raise indoor relative humidity above 55%
- Has cycle times ranging from every one to four hours, with ventilation times lasting from zero to sixty minutes.
Thursday, December 6, 2012
Product Feature: Water Furnace Synergy3D Series - 16.6 EER / 3.7 COP
Overall Efficiency, Peformance & Features:
- Multi-stage heating and cooling
- 16.6 EER / 3.7 COP (ARI 13256-1 GLHP)
- Hot water generation
- Integrated Radiant Heat
With the Synergy3 Series, you'll enjoy incredible energy savings on your heating and cooling costs while providing hot water for radiant floor heat. The Synergy3 is the geothermal equivalent of a boiler, furnace and air conditioner—all in a single unit. Units are available in three vertical sizes. Cabinets are constructed with heavy-gauge metal and are coated with durable poly paint for long lasting beauty and protection. Copeland Scroll compressors provide outstanding performance and reliability, while coated air coils add durability and longer life. Variable speed ECM blower motors are used for quiet operation. A sophisticated microprocessor control sequences all components during operation for optimum performance, and provides easy-to-use troubleshooting features with fault lights and on-board diagnostics. To help achieve ultimate comfort, heating priority may be given to forced air zones or radiant floor heat.
 |
 |
 |
Tuesday, December 4, 2012
A Look At Source-Specific Controls: Household Products - A Guide to Indoor Air Quality, Part Fifteen
Welcome back to our Guide to Indoor Air Quality series. Last time, we talked about stoves, heaters, fireplaces and chimneys. Time for part fifteen...
EPA's Total Exposure Assessment Methodology (TEAM) studies found levels of about a dozen common organic pollutants to be 2 to 5 times higher inside homes than outside, regardless of whether the homes were located in rural or highly industrial areas. Additional TEAM studies indicate that while people are using products containing organic chemicals, they can expose themselves and others to very high pollutant levels, and elevated concentrations can persist in the air long after the activity is completed.
Throw away partially full containers of old or unneeded chemicals safely. Because gases can leak even from closed containers, this single step could help lower concentrations of organic chemicals in your home. (Be sure that materials you decide to keep are stored not only in a well-ventilated area but are also safely out of reach of children.) Do not simply toss these unwanted products in the garbage can. Find out if your local government or any organization in your community sponsors special days for the collection of toxic household wastes. If such days are available, use them to dispose of the unwanted containers safely. If no such collection days are available, think about organizing one.
Buy limited quantities. If you use products only occasionally or seasonally, such as paints, paint strippers, and kerosene for space heaters or gasoline for lawn mowers, buy only as much as you will use right away.
Keep exposure to emissions from products containing methylene chloride to a minimum. Consumer products that contain methylene chloride include paint strippers, adhesive removers, and aerosol spray paints. Methylene chloride is known to cause cancer in animals. Also, methylene chloride is converted to carbon monoxide in the body and can cause symptoms associated with exposure to carbon monoxide. Carefully read the labels containing health hazard information and cautions on the proper use of these products. Use products that contain methylene chloride outdoors when possible; use indoors only if the area is well ventilated.
Keep exposure to benzene to a minimum. Benzene is a known human carcinogen. The main indoor sources of this chemical are environmental tobacco smoke, stored fuels and paint supplies, and automobile emissions in attached garages. Actions that will reduce benzene exposure include eliminating smoking within the home, providing for maximum ventilation during painting, and discarding paint supplies and special fuels that will not be used immediately.
Keep exposure to perchloroethylene emissions from newly dry-cleaned materials to a minimum. Perchloroethylene is the chemical most widely used in dry cleaning. In laboratory studies, it has been shown to cause cancer in animals. Recent studies indicate that people breathe low levels of this chemical both in homes where dry-cleaned goods are stored and as they wear dry-cleaned clothing. Dry cleaners recapture the perchloroethylene during the dry-cleaning process so they can save money by re-using it, and they remove more of the chemical during the pressing and finishing processes. Some dry cleaners, however, do not remove as much perchloroethylene as possible all of the time. Taking steps to minimize your exposure to this chemical is prudent. If dry-cleaned goods have a strong chemical odor when you pick them up, do not accept them until they have been properly dried. If goods with a chemical odor are returned to you on subsequent visits, try a different dry cleaner.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Household Products
Organic chemicals are widely used as ingredients in household products. Paints, varnishes, and wax all contain organic solvents, as do many cleaning, disinfecting, cosmetic, degreasing, and hobby products. Fuels are made up of organic chemicals. All of these products can release organic compounds while you are using them, and, to some degree, when they are stored.EPA's Total Exposure Assessment Methodology (TEAM) studies found levels of about a dozen common organic pollutants to be 2 to 5 times higher inside homes than outside, regardless of whether the homes were located in rural or highly industrial areas. Additional TEAM studies indicate that while people are using products containing organic chemicals, they can expose themselves and others to very high pollutant levels, and elevated concentrations can persist in the air long after the activity is completed.
Health Effects of Household Chemicals
The ability of organic chemicals to cause health effects varies greatly, from those that are highly toxic, to those with no known health effect. As with other pollutants, the extent and nature of the health effect will depend on many factors including level of exposure and length of time exposed. Eye and respiratory tract irritation, headaches, dizziness, visual disorders, and memory impairment are among the immediate symptoms that some people have experienced soon after exposure to some organics. At present, not much is known about what health effects occur from the levels of organics usually found in homes. Many organic compounds are known to cause cancer in animals; some are suspected of causing, or are known to cause, cancer in humans.Reducing Exposure to Household Chemicals
Follow label instructions carefully. Potentially hazardous products often have warnings aimed at reducing exposure of the user. For example, if a label says to use the product in a well-ventilated area, go outdoors or in areas equipped with an exhaust fan to use it. Otherwise, open up windows to provide the maximum amount of outdoor air possible.Throw away partially full containers of old or unneeded chemicals safely. Because gases can leak even from closed containers, this single step could help lower concentrations of organic chemicals in your home. (Be sure that materials you decide to keep are stored not only in a well-ventilated area but are also safely out of reach of children.) Do not simply toss these unwanted products in the garbage can. Find out if your local government or any organization in your community sponsors special days for the collection of toxic household wastes. If such days are available, use them to dispose of the unwanted containers safely. If no such collection days are available, think about organizing one.
Buy limited quantities. If you use products only occasionally or seasonally, such as paints, paint strippers, and kerosene for space heaters or gasoline for lawn mowers, buy only as much as you will use right away.
Keep exposure to emissions from products containing methylene chloride to a minimum. Consumer products that contain methylene chloride include paint strippers, adhesive removers, and aerosol spray paints. Methylene chloride is known to cause cancer in animals. Also, methylene chloride is converted to carbon monoxide in the body and can cause symptoms associated with exposure to carbon monoxide. Carefully read the labels containing health hazard information and cautions on the proper use of these products. Use products that contain methylene chloride outdoors when possible; use indoors only if the area is well ventilated.
Keep exposure to benzene to a minimum. Benzene is a known human carcinogen. The main indoor sources of this chemical are environmental tobacco smoke, stored fuels and paint supplies, and automobile emissions in attached garages. Actions that will reduce benzene exposure include eliminating smoking within the home, providing for maximum ventilation during painting, and discarding paint supplies and special fuels that will not be used immediately.
Keep exposure to perchloroethylene emissions from newly dry-cleaned materials to a minimum. Perchloroethylene is the chemical most widely used in dry cleaning. In laboratory studies, it has been shown to cause cancer in animals. Recent studies indicate that people breathe low levels of this chemical both in homes where dry-cleaned goods are stored and as they wear dry-cleaned clothing. Dry cleaners recapture the perchloroethylene during the dry-cleaning process so they can save money by re-using it, and they remove more of the chemical during the pressing and finishing processes. Some dry cleaners, however, do not remove as much perchloroethylene as possible all of the time. Taking steps to minimize your exposure to this chemical is prudent. If dry-cleaned goods have a strong chemical odor when you pick them up, do not accept them until they have been properly dried. If goods with a chemical odor are returned to you on subsequent visits, try a different dry cleaner.
Next in this series... Formaldehyde
For most indoor air quality problems in the home, source control is the most effective solution. The upcoming posts in this series take a source-by-source look at the most common indoor air pollutants, their potential health effects, and ways to reduce levels in the home.*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Thursday, November 29, 2012
Product Feature: GT-PX Geothermal Heat Pump
Models: 50YDV, 50YDH, 50YDD
Carrier’s popular GT-PX series is our highest rated geothermal unit, featuring Puron® refrigerant; a two-stage compressor for efficiency; variable speed blower for comfort; E-coated coil; microprocessor control; and a robust, insulated cabinet for quiet operation. Available in vertical top flow, vertical bottom flow and horizontal flow, all with optional hot-water generator. In sizes from 2 through 6 tons.
- Puron® Refrigerant
- Up to 27.0 EER, 4.6 COP (closed loop)
- Up to 31.5 EER, 5.1 COP (open loop)
- Superior humidity and temperature control
- Two-stage unloading scroll compressor for ultimate comfort and performance
- Variable-speed blower for ultimate comfort and quiet operation
- Insulated cabinet for quiet operation
- Coated air coil for long life
- CXM Unit Performance Sentinel™ Control Board for precision operation
- 10-year compressor limited warranty; 5-year parts limited warranty
- Available in vertical top discharge, bottom discharge and horizontal
ENERGY STAR®
As an ENERGY STAR partner, Carrier Corporation has determined that the units achieve efficiencies of 14.1 EER and 3.3 COP or higher to meet ENERGY STAR geothermal closed loop guidelines. Proper sizing and installation of equipment is critical to achieving optimal performance. Ask your contractor for details, or visit the ENERGY STAR web site.
Wednesday, November 28, 2012
FAQ: What is This Thing Called H.S.P.F.?
H.S.P.F. = Heating Seasonal Performance Factor.
The heating seasonal performance factor (HSPF) is a measure of heat pump heating performance. Like the SEER rating, it is similar to the miles per gallon (MPG) of your automobile: the higher, the better. The HSPF rating number is derived by taking an average of performance at many different outdoor temperatures. Because HSPF is the best way to judge how efficient a heat pump is, it is important to review this rating with your sales representative as you consider specifications on your new system.
The heating seasonal performance factor (HSPF) is a measure of heat pump heating performance. Like the SEER rating, it is similar to the miles per gallon (MPG) of your automobile: the higher, the better. The HSPF rating number is derived by taking an average of performance at many different outdoor temperatures. Because HSPF is the best way to judge how efficient a heat pump is, it is important to review this rating with your sales representative as you consider specifications on your new system.
Thursday, November 22, 2012
A Look At Source-Specific Controls: Stoves, Heaters, Fireplaces and Chimneys - A Guide to Indoor Air Quality, Part Fourteen
Welcome back to our Guide to Indoor Air Quality series. Last time, we talked about biological contaminants. Time for part fourteen...
Combustion gases and particles also come from chimneys and flues that are improperly installed or maintained and cracked furnace heat exchangers. Pollutants from fireplaces and woodstoves with no dedicated outdoor air supply can be "back-drafted" from the chimney into the living space, particularly in weatherized homes.
Nitrogen dioxide (NO2) is a colorless, odorless gas that irritates the mucous membranes in the eye, nose, and throat and causes shortness of breath after exposure to high concentrations. There is evidence that high concentrations or continued exposure to low levels of nitrogen dioxide increases the risk of respiratory infection; there is also evidence from animal studies that repeated exposures to elevated nitrogen dioxide levels may lead, or contribute, to the development of lung disease such as emphysema. People at particular risk from exposure to nitrogen dioxide include children and individuals with asthma and other respiratory diseases.
Particles, released when fuels are incompletely burned, can lodge in the lungs and irritate or damage lung tissue. A number of pollutants, including radon and benzo(a)pyrene, both of which can cause cancer, attach to small particles that are inhaled and then carried deep into the lung.
Install and use exhaust fans over gas cooking stoves and ranges and keep the burners properly adjusted. Using a stove hood with a fan vented to the outdoors greatly reduces exposure to pollutants during cooking. Improper adjustment, often indicated by a persistent yellow-tipped flame, causes increased pollutant emissions. Ask your gas company to adjust the burner so that the flame tip is blue. If you purchase a new gas stove or range, consider buying one with pilotless ignition because it does not have a pilot light that burns continuously. Never use a gas stove to heat your home. Always make certain the flue in your gas fireplace is open when the fireplace is in use.
Keep woodstove emissions to a minimum. Choose properly sized new stoves that are certified as meeting EPA emission standards. Make certain that doors in old woodstoves are tight-fitting. Use aged or cured (dried) wood only and follow the manufacturer's directions for starting, stoking, and putting out the fire in woodstoves. Chemicals are used to pressure-treat wood; such wood should never be burned indoors. (Because some old gaskets in woodstove doors contain asbestos, when replacing gaskets refer to the instructions in the CPSC, ALA, and EPA booklet, Asbestos in Your Home, to avoid creating an asbestos problem. New gaskets are made of fiberglass.)
Have central air handling systems, including furnaces, flues, and chimneys, inspected annually and promptly repair cracks or damaged parts. Blocked, leaking, or damaged chimneys or flues release harmful combustion gases and particles and even fatal concentrations of carbon monoxide. Strictly follow all service and maintenance procedures recommended by the manufacturer, including those that tell you how frequently to change the filter. If manufacturer's instructions are not readily available, change filters once every month or two during periods of use. Proper maintenance is important even for new furnaces because they can also corrode and leak combustion gases, including carbon monoxide.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Stoves, Heaters, Fireplaces and Chimneys
In addition to environmental tobacco smoke, other sources of combustion products are unvented kerosene and gas space heaters, woodstoves, fireplaces, and gas stoves. The major pollutants released are carbon monoxide, nitrogen dioxide, and particles. Unvented kerosene heaters may also generate acid aerosols.Combustion gases and particles also come from chimneys and flues that are improperly installed or maintained and cracked furnace heat exchangers. Pollutants from fireplaces and woodstoves with no dedicated outdoor air supply can be "back-drafted" from the chimney into the living space, particularly in weatherized homes.
Health Effects of Combustion Products
Carbon monoxide (CO) is a colorless, odorless gas that interferes with the delivery of oxygen throughout the body. At high concentrations it can cause unconsciousness and death. Lower concentrations can cause a range of symptoms from headaches, dizziness, weakness, nausea, confusion, and disorientation, to fatigue in healthy people and episodes of increased chest pain in people with chronic heart disease. The symptoms of carbon monoxide poisoning are sometimes confused with the flu or food poisoning. Fetuses, infants, elderly people, and people with anemia or with a history of heart or respiratory disease can be especially sensitive to carbon monoxide exposures.Nitrogen dioxide (NO2) is a colorless, odorless gas that irritates the mucous membranes in the eye, nose, and throat and causes shortness of breath after exposure to high concentrations. There is evidence that high concentrations or continued exposure to low levels of nitrogen dioxide increases the risk of respiratory infection; there is also evidence from animal studies that repeated exposures to elevated nitrogen dioxide levels may lead, or contribute, to the development of lung disease such as emphysema. People at particular risk from exposure to nitrogen dioxide include children and individuals with asthma and other respiratory diseases.
Particles, released when fuels are incompletely burned, can lodge in the lungs and irritate or damage lung tissue. A number of pollutants, including radon and benzo(a)pyrene, both of which can cause cancer, attach to small particles that are inhaled and then carried deep into the lung.
Reducing Exposure to Combustion Products in Homes
Take special precautions when operating fuel-burning unvented space heaters. Consider potential effects of indoor air pollution if you use an unvented kerosene or gas space heater. Follow the manufacturer's directions, especially instructions on the proper fuel and keeping the heater properly adjusted. A persistent yellow-tipped flame is generally an indicator of maladjustment and increased pollutant emissions. While a space heater is in use, open a door from the room where the heater is located to the rest of the house and open a window slightly.Install and use exhaust fans over gas cooking stoves and ranges and keep the burners properly adjusted. Using a stove hood with a fan vented to the outdoors greatly reduces exposure to pollutants during cooking. Improper adjustment, often indicated by a persistent yellow-tipped flame, causes increased pollutant emissions. Ask your gas company to adjust the burner so that the flame tip is blue. If you purchase a new gas stove or range, consider buying one with pilotless ignition because it does not have a pilot light that burns continuously. Never use a gas stove to heat your home. Always make certain the flue in your gas fireplace is open when the fireplace is in use.
Keep woodstove emissions to a minimum. Choose properly sized new stoves that are certified as meeting EPA emission standards. Make certain that doors in old woodstoves are tight-fitting. Use aged or cured (dried) wood only and follow the manufacturer's directions for starting, stoking, and putting out the fire in woodstoves. Chemicals are used to pressure-treat wood; such wood should never be burned indoors. (Because some old gaskets in woodstove doors contain asbestos, when replacing gaskets refer to the instructions in the CPSC, ALA, and EPA booklet, Asbestos in Your Home, to avoid creating an asbestos problem. New gaskets are made of fiberglass.)
Have central air handling systems, including furnaces, flues, and chimneys, inspected annually and promptly repair cracks or damaged parts. Blocked, leaking, or damaged chimneys or flues release harmful combustion gases and particles and even fatal concentrations of carbon monoxide. Strictly follow all service and maintenance procedures recommended by the manufacturer, including those that tell you how frequently to change the filter. If manufacturer's instructions are not readily available, change filters once every month or two during periods of use. Proper maintenance is important even for new furnaces because they can also corrode and leak combustion gases, including carbon monoxide.
Next in this series... Household Products
For most indoor air quality problems in the home, source control is the most effective solution. The upcoming posts in this series take a source-by-source look at the most common indoor air pollutants, their potential health effects, and ways to reduce levels in the home.*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Tuesday, November 20, 2012
FAQ: Should I Repair or Replace My Old Furnace, Air Conditioner or Heat Pump?
Our company is committed to the technical excellence of the service we provide you and, therefore, require our 'champion' technicians to attend regular training sessions. Besides the technician who actually does the repair, Howell's has highly competent and experienced field supervisors who, although you may never see, provide valuable backup to the technician. So, should a second opinion ever be required about a technical question, you don't have to worry because the technician has highly qualified expertise to bring to each call.
(But who cares? The technician isn't living in your house day in and day out, right? He just wants to move equipment!) Wrong! Take a look for yourself whether you should repair or replace that system that is still "working fine"
*To calculate the cost to replace the unit in the future:
(Today's Replacement Cost) + (Inflation [avg 2% yearly] for X Years) = $ Future Replacement Cost
That wasn't so bad, now was it? At least now you have a clear picture of what your system is doing for you. Now it is up to you. Let us know how we can best serve you in the future. For more information, answers, or to get a no-obligation FREE replacement quote, visit our website!
(But who cares? The technician isn't living in your house day in and day out, right? He just wants to move equipment!) Wrong! Take a look for yourself whether you should repair or replace that system that is still "working fine"
Should I Repair or Replace My Old Furnace, Air Conditioner or Heat Pump?
(This is an example of a 10-year-old furnace and air conditioner system. Based on current repair at the home and potential replacement cost today.)| REPAIR TODAY | EXAMPLE: Compare a repair on a 10-year-old "no heat" furnace/AC by putting in a new blower motor VS replacing the furnace with a new, high-efficiency system | REPLACE TODAY |
| What is the cost of today's repair, i.e., $350 for a replacement blower motor. | TODAY'S COST | Ballpark investment for a high-efficiency model furnace/AC, i.e., $6,700 (Avg. price) |
| What is your best guess on repairs over the next few years until the furnace/AC must be replaced? I.E., $350 | FUTURE REPAIRS | NONE! Your 5 or 10 year bumper-to-bumper warranty covers all that risk. |
| ASHRAE data shows that the expected furnace life is 18 years, so we have 8 years to go at (your guess) $1,000 per year. 8 x $1,000 = $8,000. Typical Air Conditioner life expectancy is 15 years at an average electrical cost of $700 a year. 8 x $700 = $5,600 | ENERGY COST TO OPERATE FOR 10 YEARS | The new, high-efficiency model will save 30-40% of their heating & cooling costs, so figure $600 per year for heating. 10 x $600 = $6,000. And $450 per year for cooling. 10 x $450 = $4,500 |
| At some point the furnace/AC must be replaced so this is the ballpark investment for the high-efficiency model, at a minimum 2% increase annually. i.e., $7,851. | COST TO REPLACE THE UNIT IN 10 YEARS* | NONE! It works great and the customers are happy! |
| NONE! Actually, you will also have the inconvenience of at least one more failure! | ADDITIONAL COMFORT BENEFITS | LOTS! More comfortable due to proper sizing, better technology, quieter, less worry, better filtration, and more! |
| In this example, the numbers add up to: $22,151 | TOTAL COST OF OWNERSHIP FOR 10 YEARS | In this example, the numbers add up to: $17,200 |
| AMOUNT SAVED BY REPLACING TODAY $4,951 | ||
*To calculate the cost to replace the unit in the future:
(Today's Replacement Cost) + (Inflation [avg 2% yearly] for X Years) = $ Future Replacement Cost
That wasn't so bad, now was it? At least now you have a clear picture of what your system is doing for you. Now it is up to you. Let us know how we can best serve you in the future. For more information, answers, or to get a no-obligation FREE replacement quote, visit our website!
Thursday, November 15, 2012
Product Feature: Honeywell TrueSTEAM™ Humidification System
- Moisture on Demand - TrueSTEAM works by producing its own steam independent of equipment operation, so your home gets moisture when you need it most.
- Eco-Friendly - TrueSTEAM is the most eco-friendly way to humidify your home, because for every 1 gallon of water used, 1 gallon of humidification is produced.
- "True Steam" - While other humidifiers rely on moisture-filled pads that can be susceptible to bacteria growth in the water and the airstream, TrueSTEAM delivers "true steam" - the cleanest form of humidification.
- Out of Sight, Out of Mind - TrueSTEAM is installed out-of-sight by your heating and cooling professional into your home's central heating and cooling system. You can forget about having to fill clunky, portable units, because TrueSTEAM automatically fills itself.
- Whole-House Solution - Installs directly or remotely to your furnace to deliver moisture throughout your entire home.
- Minimal Maintenance - Simply clean once a year with soap and water and the rest of the time it cleans itself automatically.
- Model Numbers: HM506W1005, HM509W1005, HM512W1005, HM512WTHX9, HM512VPIAQ, HM512DG115, HM509VPIAQ, HM509DG115, HM509H8908, HM506VPIAQ, HM506DG115, HM506H8908, HM, HM506, HM509, HM512
- 5-Year Warranty
Tuesday, November 13, 2012
Product Feature: Water Furnace Envision™ Series - Envision 30 EER/5 COP
- Meets or exceeds Energy Star® guidelines
- 30 EER / 5 COP (ARI 13256-1 GLHP)
- Comfort Alert™ enabled
- Ultra Quiet operation
|
| |
Thursday, November 8, 2012
A Look At Source-Specific Controls: Biological Contaminants - A Guide to Indoor Air Quality, Part Thirteen
Welcome back to our Guide to Indoor Air Quality series. Last time, we talked about environmental tobacco smoke. Time for part thirteen...
By controlling the relative humidity level in a home, the growth of some sources of biologicals can be minimized. A relative humidity of 30-50 percent is generally recommended for homes. Standing water, water-damaged materials, or wet surfaces also serve as a breeding ground for molds, mildews, bacteria, and insects. House dust mites, the source of one of the most powerful biological allergens, grow in damp, warm environments.
Allergic reactions occur only after repeated exposure to a specific biological allergen. However, that reaction may occur immediately upon re-exposure or after multiple exposures over time. As a result, people who have noticed only mild allergic reactions, or no reactions at all, may suddenly find themselves very sensitive to particular allergens.
Some diseases, like humidifier fever, are associated with exposure to toxins from microorganisms that can grow in large building ventilation systems. However, these diseases can also be traced to microorganisms that grow in home heating and cooling systems and humidifiers. Children, elderly people, and people with breathing problems, allergies, and lung diseases are particularly susceptible to disease-causing biological agents in the indoor air.
Ventilate the attic and crawl spaces to prevent moisture build-up. Keeping humidity levels in these areas below 50 percent can prevent water condensation on building materials.
If using cool mist or ultrasonic humidifiers, clean appliances according to manufacturer's instructions and refill with fresh water daily. Because these humidifiers can become breeding grounds for biological contaminants, they have the potential for causing diseases such as hypersensitivity pneumonitis and humidifier fever. Evaporation trays in air conditioners, dehumidifiers, and refrigerators should also be cleaned frequently.
Thoroughly clean and dry water-damaged carpets and building materials (within 24 hours if possible) or consider removal and replacement. Water-damaged carpets and building materials can harbor mold and bacteria. It is very difficult to completely rid such materials of biological contaminants.
Keep the house clean. House dust mites, pollens, animal dander, and other allergy-causing agents can be reduced, although not eliminated, through regular cleaning. People who are allergic to these pollutants should use allergen-proof mattress encasements, wash bedding in hot (130 degrees farenheit) water, and avoid room furnishings that accumulate dust, especially if they cannot be washed in hot water. Allergic individuals should also leave the house while it is being vacuumed because vacuuming can actually increase airborne levels of mite allergens and other biological contaminants. Using central vacuum systems that are vented to the outdoors or vacuums with high efficiency filters may also be of help.
Take steps to minimize biological pollutants in basements. Clean and disinfect the basement floor drain regularly. Do not finish a basement below ground level unless all water leaks are patched and outdoor ventilation and adequate heat to prevent condensation are provided. Operate a dehumidifier in the basement if needed to keep relative humidity levels between 30-50 percent.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Biological Contaminants
Biological contaminants include bacteria, molds, mildew, viruses, animal dander and cat saliva, house dust mites, cockroaches, and pollen. There are many sources of these pollutants. Pollens originate from plants; viruses are transmitted by people and animals; bacteria are carried by people, animals, and soil and plant debris; and household pets are sources of saliva and animal dander. The protein in urine from rats and mice is a potent allergen. When it dries, it can become airborne. Contaminated central air handling systems can become breeding grounds for mold, mildew, and other sources of biological contaminants and can then distribute these contaminants through the home.By controlling the relative humidity level in a home, the growth of some sources of biologicals can be minimized. A relative humidity of 30-50 percent is generally recommended for homes. Standing water, water-damaged materials, or wet surfaces also serve as a breeding ground for molds, mildews, bacteria, and insects. House dust mites, the source of one of the most powerful biological allergens, grow in damp, warm environments.
Health Effects From Biological Contaminants
Some biological contaminants trigger allergic reactions, including hypersensitivity pneumonitis, allergic rhinitis, and some types of asthma. Infectious illnesses, such as influenza, measles, and chicken pox are transmitted through the air. Molds and mildews release disease-causing toxins. Symptoms of health problems caused by biological pollutants include sneezing, watery eyes, coughing, shortness of breath, dizziness, lethargy, fever, and digestive problems.Allergic reactions occur only after repeated exposure to a specific biological allergen. However, that reaction may occur immediately upon re-exposure or after multiple exposures over time. As a result, people who have noticed only mild allergic reactions, or no reactions at all, may suddenly find themselves very sensitive to particular allergens.
Some diseases, like humidifier fever, are associated with exposure to toxins from microorganisms that can grow in large building ventilation systems. However, these diseases can also be traced to microorganisms that grow in home heating and cooling systems and humidifiers. Children, elderly people, and people with breathing problems, allergies, and lung diseases are particularly susceptible to disease-causing biological agents in the indoor air.
Reducing Exposure to Biological Contaminants
Install and use exhaust fans that are vented to the outdoors in kitchens and bathrooms and vent clothes dryers outdoors. These actions can eliminate much of the moisture that builds up from everyday activities. There are exhaust fans on the market that produce little noise, an important consideration for some people. Another benefit to using kitchen and bathroom exhaust fans is that they can reduce levels of organic pollutants that vaporize from hot water used in showers and dishwashers.Ventilate the attic and crawl spaces to prevent moisture build-up. Keeping humidity levels in these areas below 50 percent can prevent water condensation on building materials.
If using cool mist or ultrasonic humidifiers, clean appliances according to manufacturer's instructions and refill with fresh water daily. Because these humidifiers can become breeding grounds for biological contaminants, they have the potential for causing diseases such as hypersensitivity pneumonitis and humidifier fever. Evaporation trays in air conditioners, dehumidifiers, and refrigerators should also be cleaned frequently.
Thoroughly clean and dry water-damaged carpets and building materials (within 24 hours if possible) or consider removal and replacement. Water-damaged carpets and building materials can harbor mold and bacteria. It is very difficult to completely rid such materials of biological contaminants.
Keep the house clean. House dust mites, pollens, animal dander, and other allergy-causing agents can be reduced, although not eliminated, through regular cleaning. People who are allergic to these pollutants should use allergen-proof mattress encasements, wash bedding in hot (130 degrees farenheit) water, and avoid room furnishings that accumulate dust, especially if they cannot be washed in hot water. Allergic individuals should also leave the house while it is being vacuumed because vacuuming can actually increase airborne levels of mite allergens and other biological contaminants. Using central vacuum systems that are vented to the outdoors or vacuums with high efficiency filters may also be of help.
Take steps to minimize biological pollutants in basements. Clean and disinfect the basement floor drain regularly. Do not finish a basement below ground level unless all water leaks are patched and outdoor ventilation and adequate heat to prevent condensation are provided. Operate a dehumidifier in the basement if needed to keep relative humidity levels between 30-50 percent.
Next in this series... Biological Contaminants
For most indoor air quality problems in the home, source control is the most effective solution. The upcoming posts in this series take a source-by-source look at the most common indoor air pollutants, their potential health effects, and ways to reduce levels in the home.*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Tuesday, November 6, 2012
Product Feature: XL20i Heat Pumps from Trane
The Ultimate in Year-Round Comfort
Imagine 12 months of total and complete comfort – from the hottest days to the coldest nights. Well, you don’t have to, thanks to the XL20i system from Trane. It’s designed to perfectly cool your home in the summer and perfectly heat it in the winter.Trane XL20i Features
When matched with a variable speed indoor unit from Trane, the XL20i has another special feature. It's a method of enhancing airflow that we call Comfort-R™ and it gives you greater humidity control in cooling. This is accomplished by running the fan at a slower speed during start-up. Comfort-R™ also provides warmer air during heating start-up. These managed cycles reduce temperature variances for the optimum in home comfort.Efficient Performance
The XL20i is among the industry’s most efficient heat pumps available, with a rating up to 19.00 SEER and HSPF up to 9.0. The XL20i has two compressors: one for milder weather and a second larger compressor for those extremely hot days. It’s like having two units in one.ComfortLink II Communicating Capability
ComfortLink II communicating technology (available when matched with communicating indoor units) connects all of your key components so your system automatically charges, configures and calibrates for optimal performance and efficiency through the lifetime of your products. When the optional Telephone Access Module (TAM) is added, you can conveniently adjust settings and receive system updates wherever you are by phone.Economical Operation
Increased efficiency may substantially lower your home heating and cooling costs.Quiet Comfort
Multi-stage fan motor adjusts speed to quietly provide maximum comfort.Durable Construction
Materials for all components are tested again and again for long-lasting performance and durability.Cleaner, Healthier Indoor Air
Add Trane CleanEffects™ to your system for advanced air filtration that removes more dust, pollen and other irritants from conditioned air for a cleaner, healthier, more comfortable home.Trane XL20i Specifics
Every Trane Heat Pump is packed with high-quality components. Each helps ensure that time after time, your unit will provide total comfort your family can rely on. The XL20i includes:- ComfortLink II Communicating Capability
- Charge Assist™ for enhanced performance and efficiency
- Dual Climatuff® Compressors
- Full-Side Louvered Panels
- WeatherGuard™ Top Protects Components
- R410A Refrigerant
- Baked-On Powder Paint
- Weather Resistant WeatherGuard™ Fasteners
- Two-row Spine Fin™ coil
- DuraTuff™ Rust Proof Base Pan
- Two-Stage Cooling and Heating
- Multi-stage Fan
- Low-Resistance Airflow
- Sound Insulator on Compressors
Trane XL20i Limited Warranty Details
Beginning May 1 2009, Registered Limited Warranty terms are available if the product is registered within 60 days of installation. Registration can be completed either online at Trane.com or by calling 800-554-6413. Trane’s Registered Limited Warranty terms include:- 12 Year limited warranty on compressor
- 10 Year limited warranty on outdoor coil
- 10 Year limited warranty on internal functional parts
- The ten year Functional Parts Limited Warranty extends to the indoor gas furnace, coil, air handler and thermostat when installed as part of a complete XLi comfort system. An XLi comfort system includes an AHRI certified matching Trane outdoor XLi unit, indoor unit and thermostat installed at the same time.
- If the product is not registered within 60 days of installation Trane’s Base Limited Warranty terms will apply.
- Optional Extended Warranties available. Extended Warranties can pay for labor and other costs not covered by manufacturer's limited warranty.
- Ask your dealer for full warranty information at time of purchase. Warranties are for residential use only, some exclusions may apply.
Legal: Potential energy savings may vary depending on your personal lifestyle, system settings, equipment maintenance, local climate, actual construction and installation of equipment, and duct system. As part of our continuous product improvement, Trane reserves the right to change specifications and design without notice. Read important energy cost and efficiency information available from your dealer.
Tuesday, October 30, 2012
How Your Gas Furnace Works
...no need to worry, it's safer than you think!
Your new Trane furnace creates heat by burning fuel (gas or propane). Upon a call for heat from your thermostat, your power vent motor will energize and prep the combustion area for ignition by inducing a draft through the flue pipe system. Following this, your Silicon Carbide Hot Surface Igniter (aka - "pilot light") will glow bright orange for approximately 20-30 seconds, at which point the gas valve will open and send the fuel to the combustion area and the active ignitor. The fuel will ignite and generate a nice blue flame.When the fuel burns, it generates hot gasses which travel through curved metal tubing called a heat exchanger. Following a predetermined time limit encoded in the furnace control board, the indoor blower motor will energize, thus pulling the cooler air from inside the house through the system to be heated. As this cooler air passes over the heat exchanger, it absorbs heat from the hot metal surface. The heated air is then circulated throughout your duct system to warm your home.
Meanwhile, the gasses that are created by the burning fuel are released outside through a plastic vent pipe. This furnace is so efficient, you will only lose about 10% of your energy out the flue pipe, which is so much better than most furnaces out there today. And because of the little amount of heat that is released through the flue pipe, these gases will cool rapidly the further away from the system they get, thus creating condensation. These furnaces are commonly referred to as "condensing furnaces" for this reason. This condensation is then channeled away from the unit through an intricate piping system or pump. When your thermostat is satisfied, the furnace will then ramp down, awaiting your next call for heat.
So, here is your new Trane Gas Furnace. I trust that you both will have a long and warm relationship.
This post sponsored by
Tuesday, October 23, 2012
What Makes R-410A Better
It can't be "that" good, can it?
It’s Environmentally Friendlier.
If your system ever leaks, the escaping refrigerant won’t contribute to ozone depletion!
You avoid the risk that R-22 could become expensive or difficult to get when your system needs to be repaired in a few years.
The old refrigerant R-22 will be phased out along with other ozone depleting chemicals, and both supply and demand of this chemical will be significantly affected by current and upcoming regulations. By selecting an air conditioner or heat pump that uses R-410A, you will avoid the risk associated with purchasing a product that is destined to become obsolete.
R-410A systems can be more reliable than R-22 systems.
R-410A air conditioning and heat pump are today’s “state of the art” systems, and utilize the most current technology available for efficient and reliable operation. The heart of every air conditioner or heat pump is the compressor, and newer systems are specifically designed to use R-410A refrigerant. They often incorporate smaller, heavier-duty “scroll-type” compressors that are quieter and operate with less damaging vibration than older compressors that operate on R-22. Since R-410A can absorb and release heat more efficiently than R-22 ever could, compressors with R-410A run cooler than R-22 systems, reducing the risk of burnout due to overheating.
It uses a synthetic lubricant that helps to keep the system operating smoothly.
All air-conditioning systems use an oil that circulates through the inside of the system to keep all of the parts well lubricated, just like the engine of your car. R-22 air conditioners use an oil known as “mineral oil” that has been used for decades. R-410A air conditioners use newer synthetic lubricants that are usually more soluble with the R-410A than the old mineral oils are with the older R-22 refrigerants. This means the synthetic lubricants and R-410A can mix and circulate more efficiently to keep the compressor and other moving parts lubricated, reducing wear and extending their life. Also, just as many new cars use synthetic oils because they are less likely to break down under high stress and heat, the new synthetic oils used in R-410A air conditioners are less likely to break down under extreme conditions.
Thursday, October 18, 2012
FAQ: Suggested Temperature Settings for a Heat Pump
In the winter, we recommend a temperature setting that is comfortable for your household. Once your thermostat is set, the best policy is to leave it alone. Raising the thermostat as little as 2° F may cause the supplementary heat to come on, thereby increasing your energy usage.
In the summer, a setting of 78° F or higher is recommended for cooling. For each degree you set the temperature below 78° F, you will increase your cooling energy usage approximately three percent.
Raising the temperature when you are away from home during the day is recommended to save energy. If you will be away for several days, turn the system off during the cooling season. Frequent changing of the thermostat setting reduces the economical operation of the heat pump and tends to shorten the life of the compressor.
In the summer, a setting of 78° F or higher is recommended for cooling. For each degree you set the temperature below 78° F, you will increase your cooling energy usage approximately three percent.
Raising the temperature when you are away from home during the day is recommended to save energy. If you will be away for several days, turn the system off during the cooling season. Frequent changing of the thermostat setting reduces the economical operation of the heat pump and tends to shorten the life of the compressor.
Tuesday, October 16, 2012
A Look At Source-Specific Controls: Environmental Tobacco Smoke - A Guide to Indoor Air Quality, Part Twelve
Welcome back to our Guide to Indoor Air Quality series. Last time, we talked about radon. Time for part twelve...
In 1992, EPA completed a major assessment of the respiratory health risks of ETS (Respiratory Health Effects of Passive Smoking: Lung Cancer and Other Disorders EPA/600/6-90/006F). The report concludes that exposure to ETS is responsible for approximately 3,000 lung cancer deaths each year in nonsmoking adults and impairs the respiratory health of hundreds of thousands of children.
Infants and young children whose parents smoke in their presence are at increased risk of lower respiratory tract infections (pneumonia and bronchitis) and are more likely to have symptoms of respiratory irritation like cough, excess phlegm, and wheeze. EPA estimates that passive smoking annually causes between 150,000 and 300,000 lower respiratory tract infections in infants and children under 18 months of age, resulting in between 7,500 and 15,000 hospitalizations each year. These children may also have a build-up of fluid in the middle ear, which can lead to ear infections. Older children who have been exposed to secondhand smoke may have slightly reduced lung function.
Asthmatic children are especially at risk. EPA estimates that exposure to secondhand smoke increases the number of episodes and severity of symptoms in hundreds of thousands of asthmatic children, and may cause thousands of nonasth-matic children to develop the disease each year. EPA estimates that between 200,000 and 1,000,000 asthmatic children have their condition made worse by exposure to secondhand smoke each year. Exposure to secondhand smoke causes eye, nose, and throat irritation. It may affect the cardiovascular system and some studies have linked exposure to secondhand smoke with the onset of chest pain. For publications about ETS, contact EPA's Indoor Air Quality Information Clearinghouse (IAQ INFO), 800-438-4318 or (703) 356-4020.
The 1986 Surgeon General's report concluded that physical separation of smokers and nonsmokers in a common air space, such as different rooms within the same house, may reduce - but will not eliminate - non-smokers' exposure to environmental tobacco smoke.
Open windows or use exhaust fans. Ventilation, a common method of reducing exposure to indoor air pollutants, also will reduce but not eliminate exposure to environmental tobacco smoke. Because smoking produces such large amounts of pollutants, natural or mechanical ventilation techniques do not remove them from the air in your home as quickly as they build up. In addition, the large increases in ventilation it takes to significantly reduce exposure to environmental tobacco smoke can also increase energy costs substantially. Consequently, the most effective way to reduce exposure to environmental tobacco smoke in the home is to eliminate smoking there.
Children are particularly susceptible to the effects of passive smoking. Do not allow baby-sitters or others who work in your home to smoke indoors. Discourage others from smoking around children. Find out about the smoking policies of the day care center providers, schools, and other care givers for your children. The policy should protect children from exposure to ETS.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Environmental Tobacco Smoke
Environmental tobacco smoke (ETS) is the mixture of smoke that comes from the burning end of a cigarette, pipe, or cigar, and smoke exhaled by the smoker. It is a complex mixture of over 4,000 compounds, more than 40 of which are known to cause cancer in humans or animals and many of which are strong irritants. ETS is often referred to as "secondhand smoke" and exposure to ETS is often called "passive smoking."Health Effects of Environmental Tobacco Smoke
In 1992, EPA completed a major assessment of the respiratory health risks of ETS (Respiratory Health Effects of Passive Smoking: Lung Cancer and Other Disorders EPA/600/6-90/006F). The report concludes that exposure to ETS is responsible for approximately 3,000 lung cancer deaths each year in nonsmoking adults and impairs the respiratory health of hundreds of thousands of children.
Infants and young children whose parents smoke in their presence are at increased risk of lower respiratory tract infections (pneumonia and bronchitis) and are more likely to have symptoms of respiratory irritation like cough, excess phlegm, and wheeze. EPA estimates that passive smoking annually causes between 150,000 and 300,000 lower respiratory tract infections in infants and children under 18 months of age, resulting in between 7,500 and 15,000 hospitalizations each year. These children may also have a build-up of fluid in the middle ear, which can lead to ear infections. Older children who have been exposed to secondhand smoke may have slightly reduced lung function.
Asthmatic children are especially at risk. EPA estimates that exposure to secondhand smoke increases the number of episodes and severity of symptoms in hundreds of thousands of asthmatic children, and may cause thousands of nonasth-matic children to develop the disease each year. EPA estimates that between 200,000 and 1,000,000 asthmatic children have their condition made worse by exposure to secondhand smoke each year. Exposure to secondhand smoke causes eye, nose, and throat irritation. It may affect the cardiovascular system and some studies have linked exposure to secondhand smoke with the onset of chest pain. For publications about ETS, contact EPA's Indoor Air Quality Information Clearinghouse (IAQ INFO), 800-438-4318 or (703) 356-4020.
Reducing Exposure to Environmental Tobacco Smoke
Don't smoke at home or permit others to do so. Ask smokers to smoke outdoors.
The 1986 Surgeon General's report concluded that physical separation of smokers and nonsmokers in a common air space, such as different rooms within the same house, may reduce - but will not eliminate - non-smokers' exposure to environmental tobacco smoke.
If smoking indoors cannot be avoided, increase ventilation in the area where smoking takes place.
Open windows or use exhaust fans. Ventilation, a common method of reducing exposure to indoor air pollutants, also will reduce but not eliminate exposure to environmental tobacco smoke. Because smoking produces such large amounts of pollutants, natural or mechanical ventilation techniques do not remove them from the air in your home as quickly as they build up. In addition, the large increases in ventilation it takes to significantly reduce exposure to environmental tobacco smoke can also increase energy costs substantially. Consequently, the most effective way to reduce exposure to environmental tobacco smoke in the home is to eliminate smoking there.
Do not smoke if children are present, particularly infants and toddlers.
Children are particularly susceptible to the effects of passive smoking. Do not allow baby-sitters or others who work in your home to smoke indoors. Discourage others from smoking around children. Find out about the smoking policies of the day care center providers, schools, and other care givers for your children. The policy should protect children from exposure to ETS.
Next in this series... Biological Contaminants
For most indoor air quality problems in the home, source control is the most effective solution. The upcoming posts in this series take a source-by-source look at the most common indoor air pollutants, their potential health effects, and ways to reduce levels in the home.*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Thursday, October 11, 2012
Product Feature: 9000 VisionPRO® Indoor Air Quality Digital Programmable Thermostat
With Honeywell's VisionPRO® IAQ Total Home Comfort System you can now control comfort and Indoor Air Quality (IAQ) throughout your entire home. VisionPRO IAQ eliminates the need for multiple controls in your living space, by managing your home's temperature, humidification, dehumidification and ventilation - all from a single, easy-to-use touchscreen control. If you want your home to feel as comfortable as it looks, then VisionPRO® IAQ is the thermostat for you. You'll enjoy the convenience, energy savings and consistent comfort for years to come.Tuesday, October 9, 2012
A Look At Source-Specific Controls: Radon - A Guide to Indoor Air Quality, Part Eleven
Welcome back to our Guide to Indoor Air Quality series. Last time, we talked about air cleaners. Time for part eleven...
Any home may have a radon problem. This means new and old homes, well-sealed and drafty homes, and homes with or without basements.
Sometimes radon enters the home through well water. In a small number of homes, the building materials can give off radon, too. However, building materials rarely cause radon problems by themselves.
The predominant health effect associated with exposure to elevated levels of radon is lung cancer. Research suggests that swallowing water with high radon levels may pose risks, too, although these are believed to be much lower than those from breathing air containing radon. Major health organizations (like the Centers for Disease Control and Prevention, the American Lung Association (ALA), and the American Medical Association) agree with estimates that radon causes thousands of preventable lung cancer deaths each year. EPA estimates that radon causes about 14,000 deaths per year in the United States--however, this number could range from 7,000 to 30,000 deaths per year. If you smoke and your home has high radon levels, your risk of lung cancer is especially high.
You can't see radon, but it's not hard to find out if you have a radon problem in your home. Testing is easy and should only take a little of your time.
There are many kinds of inexpensive, do-it-yourself radon test kits you can get through the mail and in hardware stores and other retail outlets. Make sure you buy a test kit that has passed EPA's testing program or is state-certified. These kits will usually display the phrase "Meets EPA Requirements." If you prefer, or if you are buying or selling a home, you can hire a trained contractor to do the testing for you. EPA's voluntary National Radon Proficiency Program (RPP) evaluated testing (measurement) contractors. A contractor who had met EPA's requirements carried an EPA-generated RPP identification card. EPA provided a list of companies and individual contractors on this web site which was also available to state radon offices. You should call your state radon office to obtain a list of qualified contractors in your area. You can also contact either the National Environmental Health Association (NEHA) - http://www.neha.org or the National Radon Safety Board (NRSB) - http://www.nrsb.org for a list of proficient radon measurement and/or mitigation contractors.
You can learn more about radon through EPA's publications, A Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family From Radon and Home Buyer's and Seller's Guide to Radon, which are also available from your state radon office.
Ways to reduce radon in your home are discussed in EPA's Consumer's Guide to Radon Reduction. You can get a copy from your state radon office. There are simple solutions to radon problems in homes. Thousands of homeowners have already fixed radon problems. Lowering high radon levels requires technical knowledge and special skills. You should use a contractor who is trained to fix radon problems.
A trained radon reduction contractor can study the problem in your home and help you pick the correct treatment method. Check with your state radon office for names of qualified or state-certified radon-reduction contractors in your area.
Scientific evidence indicates that smoking combined with radon is an especially serious health risk. Stop smoking and lower your radon level to reduce lung cancer risk.
While radon in water is not a problem in homes served by most public water supplies, it has been found in well water. If you've tested the air in your home and found a radon problem, and you have a well, contact a lab certified to measure radiation in water to have your water tested. Radon problems in water can be readily fixed. Call your state radon office or the EPA Drinking Water Hotline (800-426-4791) for more information.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Radon (Rn)
The most common source of indoor radon is uranium in the soil or rock on which homes are built. As uranium naturally breaks down, it releases radon gas which is a colorless, odorless, radioactive gas. Radon gas enters homes through dirt floors, cracks in concrete walls and floors, floor drains, and sumps. When radon becomes trapped in buildings and concentrations build up indoors, exposure to radon becomes a concern.Any home may have a radon problem. This means new and old homes, well-sealed and drafty homes, and homes with or without basements.
Sometimes radon enters the home through well water. In a small number of homes, the building materials can give off radon, too. However, building materials rarely cause radon problems by themselves.
Health Effects of Radon
The predominant health effect associated with exposure to elevated levels of radon is lung cancer. Research suggests that swallowing water with high radon levels may pose risks, too, although these are believed to be much lower than those from breathing air containing radon. Major health organizations (like the Centers for Disease Control and Prevention, the American Lung Association (ALA), and the American Medical Association) agree with estimates that radon causes thousands of preventable lung cancer deaths each year. EPA estimates that radon causes about 14,000 deaths per year in the United States--however, this number could range from 7,000 to 30,000 deaths per year. If you smoke and your home has high radon levels, your risk of lung cancer is especially high.
Reducing Exposure to Radon in Homes
Measure levels of radon in your home.
You can't see radon, but it's not hard to find out if you have a radon problem in your home. Testing is easy and should only take a little of your time.
There are many kinds of inexpensive, do-it-yourself radon test kits you can get through the mail and in hardware stores and other retail outlets. Make sure you buy a test kit that has passed EPA's testing program or is state-certified. These kits will usually display the phrase "Meets EPA Requirements." If you prefer, or if you are buying or selling a home, you can hire a trained contractor to do the testing for you. EPA's voluntary National Radon Proficiency Program (RPP) evaluated testing (measurement) contractors. A contractor who had met EPA's requirements carried an EPA-generated RPP identification card. EPA provided a list of companies and individual contractors on this web site which was also available to state radon offices. You should call your state radon office to obtain a list of qualified contractors in your area. You can also contact either the National Environmental Health Association (NEHA) - http://www.neha.org or the National Radon Safety Board (NRSB) - http://www.nrsb.org for a list of proficient radon measurement and/or mitigation contractors.
Refer to the EPA guidelines on how to test and interpret your test results.
You can learn more about radon through EPA's publications, A Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family From Radon and Home Buyer's and Seller's Guide to Radon, which are also available from your state radon office.
Learn about radon reduction methods.
Ways to reduce radon in your home are discussed in EPA's Consumer's Guide to Radon Reduction. You can get a copy from your state radon office. There are simple solutions to radon problems in homes. Thousands of homeowners have already fixed radon problems. Lowering high radon levels requires technical knowledge and special skills. You should use a contractor who is trained to fix radon problems.
A trained radon reduction contractor can study the problem in your home and help you pick the correct treatment method. Check with your state radon office for names of qualified or state-certified radon-reduction contractors in your area.
Stop smoking and discourage smoking in your home.
Scientific evidence indicates that smoking combined with radon is an especially serious health risk. Stop smoking and lower your radon level to reduce lung cancer risk.
Treat radon-contaminated well water.
While radon in water is not a problem in homes served by most public water supplies, it has been found in well water. If you've tested the air in your home and found a radon problem, and you have a well, contact a lab certified to measure radiation in water to have your water tested. Radon problems in water can be readily fixed. Call your state radon office or the EPA Drinking Water Hotline (800-426-4791) for more information.
Next in this series... Environmental Tobacco Smoke
For most indoor air quality problems in the home, source control is the most effective solution. The upcoming posts in this series take a source-by-source look at the most common indoor air pollutants, their potential health effects, and ways to reduce levels in the home.*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Thursday, October 4, 2012
Product Feature: Mitsubishi H2i Hyper-Heating INVERTER Systems Heat Pumps
Bringing Year-Round Comfort Solutions to Extreme Climates
Heat Pump System: 34200 to 36000 Btu/h Capacity
The cooling and heating success of Mitsubishi Electric’s INVERTER heat pump systems is well documented. Our Hyper-Heating INVERTER (H2i) P-Series technology advances the process a step further with the added benefit of year-round comfort with a single system even on the coldest days of the year in most areas. The 2.5- and 3-ton wall-mounted, ceiling-suspended, ceilingcassette and ducted indoor units connected to the H2i P-Series outdoor units are flexible enough to satisfy almost any light commercial or institutional renovation or new construction project.- Specifications are subject to change without notice.
- Limited warranty: Seven-year warranty on compressor. Five-year warranty on parts.
| Indoor Unit Item No. | Item Name | Outdoor Unit | Cooling Rated Capacity | Cooling Capacity Range | Cooling Total Input | Cooling Energy Efficiency |
| PKA-A30KA | Heat Pump System - Wall-mounted models - Wired Controller | PUZ-HA30NHA2 | 30000 Btu/hr | 18000-30000 Btu/hr | 2500 W | 16.5 SEER |
| PKA-A36KA | Heat Pump System- Wall-mounted models - Wired Controller | PUZ-HA36NHA2 | 33500 Btu/hr | 18000-34200 Btu/hr | 2790 W | 16.2 SEER |
| PKA-A30KAL | Heat Pump System- Wall-mounted models - Wireless Controller | PUZ-HA30NHA2 | 30000 Btu/hr | 18000-30000 Btu/hr | 2500 W | 16.5 SEER |
| PKA-A36KAL | Heat Pump System - Wall-mounted models - Wireless Controller | PUZ-HA36NHA2 | 33500 Btu/hr | 18000-34200 Btu/hr | 2790 W | 16.2 SEER |
| PLA-A30BA | Heat Pump System - Ceiling-casset te models | PUZ-HA30NHA2 | 30000 Btu/hr | 18000-30000 Btu/hr | 2450 W | 15.6 SEER |
| PLA-A36BA | Heat Pump System - Ceiling-casset te models | PUZ-HA36NHA2 | 34000 Btu/hr | 18000-36000 Btu/hr | 2690 W | 17.0 SEER |
| PCA-A30KA | Heat Pump System - Ceiling-suspended models | PUZ-HA30NHA2 | 30000 Btu/hr | 18000-30000 Btu/hr | 2480 W | 16.1 SEER |
| PCA-A36KA | Heat Pump System - Ceiling-suspended models | PUZ-HA36NHA2 | 34000 Btu/hr | 18000-36000 Btu/hr | 2810 W | 16.6 SEER |
| PEAD-A30AA | Heat Pump System - Horizontal ducted models | PUZ-HA30NHA2 | 30000 Btu/hr | 18000-30000 Btu/hr | 2500 W | 16.5 SEER |
| PEAD-A36AA | Heat Pump System - Horizontal ducted models | PUZ-HA36NHA2 | 34000 Btu/hr | 18000-36000 Btu/hr | 2800 W | 16.8 SEER |
Tuesday, October 2, 2012
Air Cleaners - A Guide to Indoor Air Quality, Part Ten
Welcome back to our Guide to Indoor Air Quality series. Last time, we talked about ventilation. Time for part ten...
The effectiveness of an air cleaner depends on how well it collects pollutants from indoor air (expressed as a percentage efficiency rate) and how much air it draws through the cleaning or filtering element (expressed in cubic feet per minute). A very efficient collector with a low air-circulation rate will not be effective, nor will a cleaner with a high air-circulation rate but a less efficient collector. The long-term performance of any air cleaner depends on maintaining it according to the manufacturer's directions.
Another important factor in determining the effectiveness of an air cleaner is the strength of the pollutant source. Table-top air cleaners, in particular, may not remove satisfactory amounts of pollutants from strong nearby sources. People with a sensitivity to particular sources may find that air cleaners are helpful only in conjunction with concerted efforts to remove the source. Over the past few years, there has been some publicity suggesting that houseplants have been shown to reduce levels of some chemicals in laboratory experiments. There is currently no evidence, however, that a reasonable number of houseplants remove significant quantities of pollutants in homes and offices. Indoor houseplants should not be over-watered because overly damp soil may promote the growth of microorganisms which can affect allergic individuals.
At present, EPA does not recommend using air cleaners to reduce levels of radon and its decay products. The effectiveness of these devices is uncertain because they only partially remove the radon decay products and do not diminish the amount of radon entering the home. EPA plans to do additional research on whether air cleaners are, or could become, a reliable means of reducing the health risk from radon. EPA's booklet, "Residential Air-Cleaning Devices", provides further information on air-cleaning devices to reduce indoor air pollutants.
EPA has recently released, "Ozone Generators That Are Sold As Air Cleaners". The purpose of this document is to provide accurate information regarding the use of ozone-generating devices in indoor occupied spaces. This information is based on the most credible scientific evidence currently available. EPA has recently published, "Should You Have the Air Ducts in Your Home Cleaned?" EPA-402-K-97-002, October 1997. This document is intended to help consumers answer this often confusing question. The document explains what air duct cleaning is, provides guidance to help consumers decide whether to have the service performed in their home, and provides helpful information for choosing a duct cleaner, determining if duct cleaning was done properly, and how to prevent contamination of air ducts.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Air Cleaners
There are many types and sizes of air cleaners on the market, ranging from relatively inexpensive table-top models to sophisticated and expensive whole-house systems. Some air cleaners are highly effective at particle removal, while others, including most table-top models, are much less so. Air cleaners are generally not designed to remove gaseous pollutants.The effectiveness of an air cleaner depends on how well it collects pollutants from indoor air (expressed as a percentage efficiency rate) and how much air it draws through the cleaning or filtering element (expressed in cubic feet per minute). A very efficient collector with a low air-circulation rate will not be effective, nor will a cleaner with a high air-circulation rate but a less efficient collector. The long-term performance of any air cleaner depends on maintaining it according to the manufacturer's directions.
Another important factor in determining the effectiveness of an air cleaner is the strength of the pollutant source. Table-top air cleaners, in particular, may not remove satisfactory amounts of pollutants from strong nearby sources. People with a sensitivity to particular sources may find that air cleaners are helpful only in conjunction with concerted efforts to remove the source. Over the past few years, there has been some publicity suggesting that houseplants have been shown to reduce levels of some chemicals in laboratory experiments. There is currently no evidence, however, that a reasonable number of houseplants remove significant quantities of pollutants in homes and offices. Indoor houseplants should not be over-watered because overly damp soil may promote the growth of microorganisms which can affect allergic individuals.
At present, EPA does not recommend using air cleaners to reduce levels of radon and its decay products. The effectiveness of these devices is uncertain because they only partially remove the radon decay products and do not diminish the amount of radon entering the home. EPA plans to do additional research on whether air cleaners are, or could become, a reliable means of reducing the health risk from radon. EPA's booklet, "Residential Air-Cleaning Devices", provides further information on air-cleaning devices to reduce indoor air pollutants.
EPA has recently released, "Ozone Generators That Are Sold As Air Cleaners". The purpose of this document is to provide accurate information regarding the use of ozone-generating devices in indoor occupied spaces. This information is based on the most credible scientific evidence currently available. EPA has recently published, "Should You Have the Air Ducts in Your Home Cleaned?" EPA-402-K-97-002, October 1997. This document is intended to help consumers answer this often confusing question. The document explains what air duct cleaning is, provides guidance to help consumers decide whether to have the service performed in their home, and provides helpful information for choosing a duct cleaner, determining if duct cleaning was done properly, and how to prevent contamination of air ducts.
Next in this series... Radon
For most indoor air quality problems in the home, source control is the most effective solution. The upcoming posts in this series take a source-by-source look at the most common indoor air pollutants, their potential health effects, and ways to reduce levels in the home.*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Thursday, September 27, 2012
Product Feature: Indoor Air Quality Products - An Introduction
When we talk about indoor air quality, we want to look at four very important factors regarding the air quality in your home:
Keep an eye out for future posts featuring specific Indoor Air Quality products!
- Temperate Air - Is the air in your house the exact temperature that you would like? Is there a temperature difference between rooms? Between floors? Do you find that you raise/lower your thermostat more and more as the years go on? If you answered yes to any of these, then you have a control issue. This usually means that the thermostat is not accurate, or not appropriate for the layout of your home.
- Fresh Air - Today, houses are being constructed tighter and tighter. This makes it more difficult for homes to exchange the stale air that builds up inside the home. It is mandatory in commercial applications to have designated fresh air ducts piped into the space. So why isn't it mandatory in residential homes? Some of the effects of a stale house include: sluggishness & fatigue, dirty smells/odors, and "sick building syndrome."
- Humid Air - Does your home or office have too much or too little humidity? There is a correlation between the amount of humidity in the air and fuel efficiency, health-related issues, and overall comfort.
- Clean Air - Now, how often do you really change or clean your filter? Take a moment and think about that honestly. Your heating and cooling system's filter is installed, per manufacturer's specifications, to keep the system clean and running efficiently. The byproduct of a filter is that it will trap any harmful contaminants within the home or office that may compromise your health.
Keep an eye out for future posts featuring specific Indoor Air Quality products!
Tuesday, September 25, 2012
Product Feature: Trane ComfortLink™ Remote Thermostat
Smart comfort. Total control. From anywhere.
Create your ideal home environment, even when you’re away, with the Trane ComfortLink Remote Thermostat. Remote access is provided through Schlage LiNK™, a comprehensive internet-enabled system that puts your home in the palm of your hand.
- Adjust home temperature remotely by computer or most web-enabled cell phones.
- Use a computer or web-enabled cell phone to check the status of your Z-Wave® lights or appliances.
- Receive text and email alerts for routine maintenance and system alarms.
The basic Trane ComfortLink Remote Thermostat kit installed by a participating Trane Comfort Specialist dealer contains:
- Trane ComfortLink Remote Thermostat
- Schlage® Bridge
- Schlage® Appliance Module
The reliability of Trane. The trusted security of Schlage®.
Trane has teamed up with Schlage, a leader in home security for over 90 years, to give you control of your home wherever you go with Schlage LiNK™. This simple to use internet-enabled interface lets you remotely adjust your home’s temperature and monitor security by computer or most web-enabled cell phones. Advanced Z-Wave® technology controls Z-Wave enabled Schlage® wireless keypad locks, lights and other components such as the Trane ComfortLink Remote Thermostat.
- Reduce energy consumption up to 15% compared to traditional non-programmable thermostats.
- Reduce energy consumption by scheduling Z-Wave®-enabled lights and small appliances to be on only when needed.
- Check the status of your Schlage wireless keypad locks, open and close, monitor activity and change codes remotely.
- Get text and email alerts on specific entry codes so you know who is home.
See the complete Schlage LiNK™ system in action.
Monitoring your home’s temperature and energy use is just the beginning. With purchase of additional Schlage LiNK™ options you can control everything from locks to Z-Wave® lights and more.
Electrical Requirements:
- Thermostat requires 24VAC power with minimum 5 wires for most single stage heating and cooling installations. One of the 5 wires must be common.
- Not for use with 120/240V electric baseboard heat, proprietary communicating systems, or radiant floor heating systems.
- Dual-fuel operation requires accessory kit available from equipment manufacturer.
Tuesday, September 18, 2012
Ventilation Improvements - A Guide to Indoor Air Quality, Part Nine
Welcome back to our Guide to Indoor Air Quality series. Last time, we talked about controlling the sources of indoor air pollutants. Time for part nine...
Local bathroom or kitchen fans that exhaust outdoors remove contaminants directly from the room where the fan is located and also increase the outdoor air ventilation rate. It is particularly important to take as many of these steps as possible while you are involved in short-term activities that can generate high levels of pollutants - for example: painting, paint stripping, heating with kerosene heaters, cooking, or engaging in maintenance and hobby activities such as welding, soldering, or sanding. You might also choose to do some of these activities outdoors, if you can and if weather permits.
Advanced designs of new homes are starting to feature mechanical systems that bring outdoor air into the home. Some of these designs include energy-efficient heat recovery ventilators (also known as air-to-air heat exchangers). For more information about air-to-air heat exchangers, contact the Conservation and Renewable Energy Inquiry and Referral Service (CAREIRS), PO Box 3048, Merrifield, VA 22116; (800) 523-2929.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Ventilation Improvements
The second approach to lowering the concentrations of indoor air pollutants in your home is to increase the amount of outdoor air coming indoors. Most home heating and cooling systems, including forced air heating systems, do not mechanically bring fresh air into the house. Opening windows and doors, operating window or attic fans, when the weather permits, or running a window air conditioner with the vent control open increases the outdoor ventilation rate.Local bathroom or kitchen fans that exhaust outdoors remove contaminants directly from the room where the fan is located and also increase the outdoor air ventilation rate. It is particularly important to take as many of these steps as possible while you are involved in short-term activities that can generate high levels of pollutants - for example: painting, paint stripping, heating with kerosene heaters, cooking, or engaging in maintenance and hobby activities such as welding, soldering, or sanding. You might also choose to do some of these activities outdoors, if you can and if weather permits.
Advanced designs of new homes are starting to feature mechanical systems that bring outdoor air into the home. Some of these designs include energy-efficient heat recovery ventilators (also known as air-to-air heat exchangers). For more information about air-to-air heat exchangers, contact the Conservation and Renewable Energy Inquiry and Referral Service (CAREIRS), PO Box 3048, Merrifield, VA 22116; (800) 523-2929.
Next in this series... Air Cleaners.
*Content provided by the Consumer Product Safety Commission and the Environmental Protection Agency. CPSC Document #450. This document is public domain.*
Subscribe to:
Posts (Atom)