Monday, May 31, 2010
HVAC Tax Credits (2009 Stimulus)
February 16, 2009, President Obama signed the American Recovery and Reinvestment Act of 2009 (ARRA) into law. This Act increased tax credits available to homeowners who make qualified energy efficient improvements to their existing primary residences. If you are a homeowner and are thinking about installing new HVAC equipment, you should consider the benefits qualifying equipment would provide at tax time. Not only can these credits lower your tax liability, they can also reduce your energy costs by up to 40% and provide for a cleaner environment.
Homeowners who install qualified furnaces, boilers, heat pumps, central air conditioners, and hot water heaters in 2009 or 2010 may qualify for a tax credit equal to 30% of the installed costs, up to $1500.
A list of equipment that qualifies can be found here. Since manufacturers are always changing their product lines,
please contact us to check on qualifying equipment.
Advancements in HVAC technology, energy efficiency, and performance in the last ten years means that the equipment you buy today can pay for itself in just a few years.
Qualifying Equipment for Tax Credits
Credits Limited to 30% of Installed Cost (up to $1,500) in the tax years 2009-2010.
EQUIPMENT Minimum Energy Efficiency Standard to Qualify for Tax Credit
Central Air Conditioners Split System Packaged System
16 SEER 14 SEER
13 EER 12 EER
Electric Air Source Heat Pumps Split Heat Pumps Packaged Heat Pumps
15 SEER 14 SEER
12.5 EER 12 EER
8.5 HSPF 8 HSPF
Sunday, May 30, 2010
Always be Polite
Mr. Thomas V. Callahan:
Dear Sir,
Recently, I had a new "Luxaire" central air conditioning system installed in my home by your company. I would like to take this opportunity to report on this event.
On June 28th, 2008, I telephoned your company and spoke with your customer service representative, Jeff Wilder, regarding air conditioning systems. Jeff quickly responded to my home and upon inspection of my old air conditioning system, explained my options regarding a new system. His presentation was both interesting and extremely informative. His demeanor was both friendly and professional and his technical knowledge was apparent. I agreed to have the new system installed.
On the next business day the installers arrived promptly and replaced my old system. Thanks to Shawn and his helper Steve, the new air conditioning system, after some adjustments, is working superbly. I have nothing but praise for all of the aforementioned personnel and their commitment to customer satisfaction.
I have and will recommend Action Heating and Air Conditioning for home heating and cooling needs! Thank you so much.
Saturday, May 29, 2010
Why should I replace my existing heating or air-conditioning system?
You may wish to consider replacing your air-conditioning or heating system if it is old, inefficient, or in need of repair. Today's systems are as much as 60% more efficient than those systems manufactured as little as ten years ago. In addition, if not properly maintained, wear and tear on a system can reduce the actual or realized efficiency of the system. If you are concerned about utility bills or are faced with an expensive repair, you may want to consider replacing your system rather than enduring another costly season or paying to replace an expensive component. The utility cost savings of a new unit may provide an attractive return on your investment. If you plan on financing the purchase, the monthly savings on your utility bill should be considered when determining the actual monthly cost of replacing a system. The offsetting savings may permit you to purchase a more efficient system.
Friday, May 28, 2010
Air-Source Heat Pumps
Air-Source Heat Pumps
An air-source heat pump can provide efficient heating and cooling for your home, especially if you live in a warm climate. When properly installed, an air-source heat pump can deliver one-and-a-half to three times more heat energy to a home than the electrical energy it consumes. This is possible because a heat pump moves heat rather than converting it from a fuel, like in combustion heating systems.
Although air-source heat pumps can be used in nearly all parts of the United States, they do not generally perform well over extended periods of sub-freezing temperatures. In regions with sub-freezing winter temperatures, it may not be cost effective to meet all your heating needs with a standard air-source heat pump.
However, new systems with gas heating as a backup are able to overcome this problem. There is also a "Cold Climate Heat Pump" which shows promise, but is currently facing manufacturing problems. In addition, a version called the "Reverse Cycle Chiller" claims to be able to operate efficiently at below-freezing temperatures.
How They Work
A heat pump's refrigeration system consists of a compressor and two coils made of copper tubing (one indoors and one outside), which are surrounded by aluminum fins to aid heat transfer. In the heating mode, liquid refrigerant in the outside coils extracts heat from the air and evaporates into a gas. The indoor coils release heat from the refrigerant as it condenses back into a liquid. A reversing valve, near the compressor, can change the direction of the refrigerant flow for cooling as well as for defrosting the outdoor coils in winter.
When outdoor temperatures fall below 40°F, a less-efficient panel of electric resistance coils, similar to those in your toaster, kicks in to provide indoor heating. This is why air-source heat pumps aren't always very efficient for heating in areas with cold winters. Some units now have gas-fired backup furnaces instead of electric resistance coils, allowing them to operate more efficiently.
Thursday, May 27, 2010
Weatherization Assistance Program
The Weatherization Assistance Program (WAP) enables low-income families to permanently reduce their energy bills by making their homes more energy efficient. Funds are used to improve the energy performance of dwellings of needy families using the most advanced technologies and testing protocols available in the housing industry. The U.S. Department of Energy (DOE) provides funding to states, U.S. overseas territories, and Indian tribal governments, which manage the day-to-day details of the program. These governments, in turn, fund a network of local community action agencies, nonprofit organizations, and local governments that provide these weatherization services in every state, the District of Columbia, U.S. territories, and among Native American tribes.
The energy conservation resulting from these efforts of state and local agencies helps our country reduce its dependence on foreign oil and decrease the cost of energy for families in need while improving the health and safety of their homes. During the past 33 years, WAP has provided weatherization services to more than 6.4 million low-income households. Families receiving weatherization services see their annual energy bills reduced by an average of about $350, depending on fuel prices. Because the energy improvements that make up weatherization services are long lived, the savings add up over time to substantial benefits for weatherization clients and their communities, and the nation as a whole.
Tuesday, May 25, 2010
Exploring Ways to Use Solar Energy
Exploring Ways to Use Solar Energy
Step outside on a hot, sunny day, and you'll experience the power of the sun's heat and the light. That's solar energy.
You can use solar energy to do the following:
•Heat your home through passive solar design or an active solar heating system
•Generate your own electricity
•Heat water in your home or swimming pool
•Light your home both indoors and outdoors
•Dry your clothes. Use a clothesline to reduce the energy consumed by your clothes dryer.
Passive Solar Home Design
Your home's windows, walls, and floors can be designed to collect, store, and distribute solar energy in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design or climatic design. Unlike active solar heating systems, passive solar design doesn't involve the use of mechanical and electrical devices, such as pumps, fans, or electrical controls to move the solar heat.
Passive solar homes range from those heated almost entirely by the sun to those with south-facing windows that provide some fraction of the heating load. The difference between a passive solar home and a conventional home is design. The key is designing a passive solar home to best take advantage of your local climate. For more information, see how a passive solar home design works.
You can apply passive solar design techniques most easily when designing a new home. However, existing buildings can be adapted or "retrofitted" to passively collect and store solar heat.
To design a completely passive solar home, you need to incorporate what are considered the five elements of passive solar design. Other design elements include:
•Window location and glazing type
•Insulation and air sealing
•Auxiliary heating and cooling systems, if needed.
These design elements can be applied using one or more of the following passive solar design techniques:
•Direct gain
•Indirect gain (Trombe wall)
•Isolated gain (Sunspace).
Active Solar Heating
There are two basic types of active solar heating systems based on the type of fluid—either liquid or air—that is heated in the solar energy collectors. (The collector is the device in which a fluid is heated by the sun.) Liquid-based systems heat water or an antifreeze solution in a "hydronic" collector, whereas air-based systems heat air in an "air collector."
Both of these systems collect and absorb solar radiation, then transfer the solar heat directly to the interior space or to a storage system, from which the heat is distributed. If the system cannot provide adequate space heating, an auxiliary or back-up system provides the additional heat. Liquid systems are more often used when storage is included, and are well suited for radiant heating systems, boilers with hot water radiators, and even absorption heat pumps and coolers. Both air and liquid systems can supplement forced air systems. To learn more about these two types of active solar heating, see the following sections:
•Solar Air Heating
•Solar Liquid Heating
Economics and Other Benefits of Active Solar Heating Systems
Active solar heating systems are most cost-effective when they are used for most of the year, that is, in cold climates with good solar resources. They are most economical if they are displacing more expensive heating fuels, such as electricity, propane, and oil heat. Some states offer sales tax exemptions, income tax credits or deductions, and property tax exemptions or deductions for solar energy systems.
The cost of an active solar heating system will vary. Commercial systems range from $30 to $80 per square foot of collector area, installed. Usually, the larger the system, the less it costs per unit of collector area. Commercially available collectors come with warranties of 10 years or more, and should easily last decades longer. The economics of an active space heating system improve if it also heats domestic water, because an otherwise idle collector can heat water in the summer.
Heating your home with an active solar energy system can significantly reduce your fuel bills in the winter. A solar heating system will also reduce the amount of air pollution and greenhouse gases that result from your use of fossil fuels such as oil, propane, and natural gas for heating or that may be used to generate the electricity that you use.
Selecting and Sizing a Solar Heating System
Selecting the appropriate solar energy system depends on factors such as the site, design, and heating needs of your house. Local covenants may restrict your options; for example homeowner associations may not allow you to install solar collectors on certain parts of your house (although many homeowners have been successful in challenging such covenants).
The local climate, the type and efficiency of the collector(s), and the collector area determine how much heat a solar heating system can provide. It is usually most economical to design an active system to provide 40%–80% of the home's heating needs. Systems providing less than 40% of the heat needed for a home are rarely cost-effective except when using solar air heater collectors that heat one or two rooms and require no heat storage. A well-designed and insulated home that incorporates passive solar heating techniques will require a smaller and less costly heating system of any type, and may need very little supplemental heat other than solar.
Besides the fact that designing an active system to supply enough heat 100% of the time is generally not practical or cost effective, most building codes and mortgage lenders require a back-up heating system. Supplementary or back-up systems supply heat when the solar system can not meet heating requirements. They can range from a wood stove to a conventional central heating system.
Controls for Solar Heating Systems
Solar system controls.
Photo credit: Sandia National Labs.
Controls for solar heating systems are usually more complex than those of a conventional heating system, because they have to analyze more signals and control more devices (including the conventional, backup heating system). Solar controls use sensors, switches, and/or motors to operate the system. The system uses other controls to prevent freezing or extremely high temperatures in the collectors.
The heart of the control system is a differential thermostat, which measures the difference in temperature between the collectors and storage unit. When the collectors are 10°–20°F (5.6°–11°C) warmer than the storage unit, the thermostat turns on a pump or fan to circulate water or air through the collector to heat the storage medium or the house.
The operation, performance, and cost of these controls vary. Some control systems monitor the temperature in different parts of the system to help determine how it is operating. The most sophisticated systems use microprocessors to control and optimize heat transfer and delivery to storage and zones of the house.
It is possible to use a solar panel to power low voltage, direct current (DC) blowers (for air collectors) or pumps (for liquid collectors). The output of the solar panels matches available solar heat gain to the solar collector. With careful sizing, the blower or pump speed is optimized for efficient solar gain to the working fluid. During low sun conditions the blower or pump speed is slow, and during high solar gain, they run faster.
When used with a room air collector, separate controls may not be necessary. This also ensures that the system will operate in the event of utility power outage. A solar power system with battery storage can also provide power to operate a central heating system, though this is expensive for large systems.
Building Codes Covenants and Regulations for Solar Heating Systems
Before installing a solar energy system, you should investigate local building codes, zoning ordinances, and subdivision covenants, as well as any special regulations pertaining to the site. You will probably need a building permit to install a solar energy system onto an existing building.
Not every community or municipality initially welcomes residential renewable energy installations. Although this is often due to ignorance or the comparative novelty of renewable energy systems, you must comply with existing building and permit procedures to install your system.
The matter of building code and zoning compliance for a solar system installation is typically a local issue. Even if a statewide building code is in effect, it's usually enforced locally by your city, county, or parish. Common problems homeowners have encountered with building codes include the following:
•Exceeding roof load
•Unacceptable heat exchangers
•Improper wiring
•Unlawful tampering with potable water supplies.
Potential zoning issues include these:
•Obstructing sideyards
•Erecting unlawful protrusions on roofs
•Siting the system too close to streets or lot boundaries.
Special area regulations—such as local community, subdivision, or homeowner's association covenants—also demand compliance. These covenants, historic district regulations, and flood-plain provisions can easily be overlooked. To find out what's needed for local compliance, contact your local jurisdiction's zoning and building enforcement divisions and any appropriate homeowner's, subdivision, neighborhood, and/or community association(s).
Installing and Maintaining Your Solar Heating System
Periodic visual inspection may be necessary to properly maintain your solar system.
Photo credit: Robb Williamson.
How well an active solar energy system performs depends on effective siting, system design, and installation, and the quality and durability of the components. The collectors and controls now manufactured are of high quality. The biggest factor now is finding an experienced contractor who can properly design and install the system.
Once a system is in place, it has to be properly maintained to optimize its performance and avoid breakdowns. Different systems require different types of maintenance, but you should figure on 8–16 hours of maintenance annually. You should set up a calendar with a list of maintenance tasks that the component manufacturers and installer recommends.
Most solar water heaters are automatically covered under your homeowner's insurance policy. However, damage from freezing is generally not. Contact your insurance provider to find out what its policy is. Even if your provider will cover your system, it is best to inform them in writing that you own a new system.
Saturday, May 8, 2010
Simple No-Cost and Low-Cost Tips to Save Energy This Summer
No-Cost and Low-Cost Tips to Save Energy This Summer
Here you'll find strategies to help you save energy during the spring and summer when the weather is warm and you are trying to keep your home cool. Some of the tips below are free and can be used on a daily basis to increase your savings; others are simple and inexpensive actions you can take to ensure maximum savings through the spring and summer.
If you haven't already, conduct an energy assessment to find out where you can save the most, and consider making a larger investment for long-term energy savings.
Also check out no-cost and low-cost tips to save energy during the winter.
Use Your Windows to Gain Cool Air and Keep Out Heat
If you live in a climate where it cools off at night, turn off your cooling system and open your windows while sleeping. When you wake in the morning, shut the windows and blinds to capture the cool air.
Install window coverings to prevent heat gain through your windows.
•Find out about window treatments and coverings that can improve energy efficiency.
Operate Your Thermostat Efficiently
Set your thermostat as high as comfortably possible in the summer. The smaller the difference between the indoor and outdoor temperatures, the lower your overall cooling bill will be.
Keep your house warmer than normal when you are away, and lower the thermostat setting to 78°F (26°C) only when you are at home and need cooling. A programmable thermostat can make it easy to set back your temperature.
•Find out how to operate your thermostat for maximum energy savings.
•Also see ENERGY STAR's June 5, 2008, podcast for video instructions on operating your programmable thermostat.
Avoid setting your thermostat at a colder setting than normal when you turn on your air conditioner. It will not cool your home any faster and could result in excessive cooling and unnecessary expense.
Use Fans and Ventilation Strategies to Cool Your Home
If you use air conditioning, a ceiling fan will allow you to raise the thermostat setting about 4°F with no reduction in comfort.
•Learn more about using a ceiling fan to increase cooling efficiency.
•Find ENERGY STAR ceiling fans.
Turn off ceiling fans when you leave the room. Remember that fans cool people, not rooms, by creating a wind chill effect.
When you shower or take a bath, use the bathroom fan to remove the heat and humidity from your home. Your laundry room might also benefit from spot ventilation. Make sure bathroom and kitchen fans are vented to the outside (not just to the attic).
•Find ENERGY STAR ventilating fans.
Keep Your Cooling System Running Efficiently
Schedule regular maintenance for your cooling equipment.
•Learn about operating and maintaining your air conditioner, evaporative cooler, or heat pump.
•Find guidelines on hiring a professional service for air conditioner maintenance.
Avoid placing lamps or TV sets near your room air-conditioning thermostat. The thermostat senses heat from these appliances, which can cause the air conditioner to run longer than necessary.
•Learn additional tips for operating a room air conditioner efficiently.
Vacuum registers regularly to remove any dust buildup. Ensure that furniture and other objects are not blocking the air flow through your registers.
Don't Heat Your Home with Appliances and Lighting
On hot days, avoid using the oven; cook on the stove, use a microwave oven, or grill outside.
Install efficient lighting that runs cooler. Only about 10%–15% of the electricity that incandescent lights consume results in light—the rest is turned into heat.
•Learn more about your options for efficient lighting.
•Find out when to turn off your lights.
•Purchase ENERGY STAR lighting products.
Take advantage of daylight instead of artificial lighting, but avoid direct sunlight.
•Learn more about strategies for efficient daylighting.
Wash only full loads of dishes and clothes. Consider air drying both dishes and clothing.
•Learn more about efficient dishwashing and laundry.
Take short showers instead of baths.
•Learn more ways to reduce your hot water use.
Minimize activities that generate a lot of heat, such as running a computer, burning open flames, running a dishwasher, and using hot devices such as curling irons or hair dryers. Even stereos and televisions will add some heat to your home.
•Learn more about avoiding heat buildup in your home
Keep Hot Air from Leaking Into Your Home
Seal cracks and openings to prevent warm air from leaking into your home.
•Learn more about air sealing new and existing homes.
Add caulk or weatherstripping to seal air leaks around leaky doors and windows.
•Find how to select and apply the appropriate caulk.
•Learn how to select and apply weatherstripping.
•Find out other ways to improve the energy efficiency of your windows.
Lower Your Water Heating Costs
Water heating can account for 14%-25% of the energy consumed in your home.
Turn down the temperature of your water heater to the warm setting (120°F). You'll not only save energy, you'll avoid scalding your hands.
•Find other strategies for energy-efficient water heating.
Thursday, May 6, 2010
Energy Saving Tips
When You Save Energy, You Save Money
Summer Tips
* Use ceiling fans to increase comfort level. Set your thermostat at 78 degrees or higher. For each degree you lower the temperature form the recommended setting, you can increase your bill up to 4%. GRU has HVAC system rebates available.
* Don't place lamps or TV sets near your air conditioner thermostat. The thermostat senses heat from these appliances, and causes the air conditioning to run longer than necessary using more energy.
* Plant trees or shrubs to shade air conditioning units but not to block the airflow. A unit operating in the shade uses as much as 10% less electricity than the same one operating in the sun.
* Install a programmable thermostat to adjust the temperature automatically and maximize energy savings. When cooling, try programming the thermostat to 82° while you are gone in the daytime and return it to 78° two hours before you get home.
Summer Tips
* Use ceiling fans to increase comfort level. Set your thermostat at 78 degrees or higher. For each degree you lower the temperature form the recommended setting, you can increase your bill up to 4%. GRU has HVAC system rebates available.
* Don't place lamps or TV sets near your air conditioner thermostat. The thermostat senses heat from these appliances, and causes the air conditioning to run longer than necessary using more energy.
* Plant trees or shrubs to shade air conditioning units but not to block the airflow. A unit operating in the shade uses as much as 10% less electricity than the same one operating in the sun.
* Install a programmable thermostat to adjust the temperature automatically and maximize energy savings. When cooling, try programming the thermostat to 82° while you are gone in the daytime and return it to 78° two hours before you get home.
Wednesday, May 5, 2010
Indoor Humidity - Moisture in the Home
Indoor Humidity - Moisture in the Home
You know when your home's air is too hot or cold. That's because you feel uncomfortable. But the amount of moisture in your home's air also has an impact on the way you feel, plus it can have a major effect on your health.
Too Much Moisture
High moisture levels can make your home feel stuffy and create a breeding ground for mold, mildew, dust mites and bacteria. Recent studies have shown that mold can cause or worsen asthma, as well as hay fever and other allergies*.
Not Enough Moisture
Dry air makes furniture shrink, warp and crack. Plus, it causes skin irritation and respiratory problems,** not to mention annoying static shocks.
Optimal Humidity Range for Ideal Comfort and Indoor Air Quality
National studies and indoor air quality experts, indicate, that, for optimal comfort and health, your home's relative humidity levels should range between 35 and 50 percent.
For optimal comfort and health, studies show that moisture levels should be in the range of 35% to 50%. You can track your home's humidity with a hygrometer, available at hardware and home improvement stores.
Other Ways to Reduce Home HumidityReducing sources of moisture can reduce your need for dehumidification.
Improving the drainage around the foundation of your home may result in decreased humidity in your basement. Some ways to improve drainage are:
Extend downspouts from your gutters away from the foundation of your home
Keep gutters and downspouts clear and open
Ensure that the soil slopes away from your foundation, to avoid pooling of water around your home.
Avoid over-watering of foundation plantings
Ensure that clothes dryers are properly vented to the outdoors. If you do not use a clothes dryer, dry your clothes outdoors as opposed to hanging them inside for drying.
Use vent fans in bathrooms and kitchens to remove humidity at the source.
Repair leaking outdoor faucets. Not only will this help reduce humidity, but it will also save you money on your water bills!
If your home uses central air conditioning, consider installing an A/C vent in the humid space in your home and take advantage of the dehumidifying capabilities of your A/C system. This will also help with air circulation, improving airflow between humid parts of your home and drier parts.
Tuesday, May 4, 2010
About Your A/C
About Your A/C
Central Air Conditioning
Central air conditioning helps keep your home cool and reduces humidity levels. By transferring heat from air located inside your home to the outside, conditioned and cooled air is left to be re-circulated. Using electricity as its power source, the compressor inside an air conditioning unit pumps coolant, or refrigerant, back and forth to gather heat and moisture from indoors. Warm air from inside is blown over the cooling coil, which is connected to the compressor, and then pumped back into your home.
Frequently Asked Questions
Can I troubleshoot before calling a dealer?
The answer is, "Yes." Here are some simple procedures you can perform before going to the expense of a service call:
■Check disconnect switches. (indoor and outdoor if you have a split system). Make sure that circuit breakers are ON or that fuses have not blown.
■Check for sufficient airflow. Make sure air filters are clean and that supply-air and return-air grilles are open and unobstructed.
■Check the settings on your thermostat. If you want cooling, make sure the temperature control selector is set below room temperature and the SYSTEM switch is on the COOL or AUTO position. If you want heat, make sure the temperature control selector is set above room temperature and the SYSTEM switch is at HEAT or AUTO. The FAN switch should be set at ON for continuous blower operation or AUTO if you want the blower to function only while the unit is operating.
Make sure your circuit breakers are in the ON position.
Make sure your filters are clean.
How long will my system last?
Maintenance and service play a key role in the lifecycle of an air conditioning system. If all recommended maintenance and service actions are taken, it is believed that an air conditioner should last about 10 years.
What is Freon R-22?
R-22 is the common name for hydro-chlorofluorocarbon (HCFC). R-22 has been used as a refrigerant by HVAC manufacturers for over 40 years, but studies in the past decade have shown that HCFCs contain chlorine, an ozone-depleting agent. For this reason, the United States Clean Air Act has set a target date for January 1, 2010, on which HVAC manufacturers must cease the production of products that use R-22.
What is R-410A?
R-410A is the common name for an emerging hydro-fluorocarbon (HFC) that is being used as a refrigerant in the HVAC industry. R-410A is more environmentally friendly than R-22 and is being seen as the most likely replacement for R-22 by HVAC manufacturers. At the beginning of 2010, the use of alternate refrigerant will be required in HVAC manufacturing.
Is there any advantage to setting my thermostat fan to "ON" so the fan runs constantly?
Yes, there are a couple. The first is that you get constant filtering of the air in your home. The second is that because the air is moving, you have a more even temperature throughout.
What is a S.E.E.R.(Seasonal Energy Efficiency Ratio)
rating and what does it mean to you?
S.E.E.R. stands for Seasonal Energy ,Efficiency Ratio, the standard measurement of air conditioning efficiency established by the U.S. Department of Energy. What does this mean to you? Higher S.E.E.R. ratings translate into greater energy efficiency which means lower electricity bills. The most important thing to remember is the higher the S.E.E.R. rating, the more money you save.
Why a higher efficiency rating (SEER) saves energy:
If your current air conditioner is more than 10 years old, it could be operating at lower than 8.00 S.E.E.R. If the annual cooling bill of an 8.00 S.E.E.R. system in a particular area is $1,000, it would cost only $615 for a 13.00 S.E.E.R. system to operate at the same capacity in the same area. This is an annual savings of 38%.
How often should I recharge my air conditioner with new freon?
A properly functioning air conditioner does not consume refrigerant (freon), so under ideal conditions it would never need changing or filling. A low freon level indicates a leak which should be repaired before adding more.
Subscribe to:
Posts (Atom)