1. Find the air leaks– First, close all your windows, doors and flues and turn off your furnace and water heater. Then turn on all your exhaust fans–this will help pull air from the outside. Now, walk around your home and feel for drafts in the following areas:
If you have trouble, try wetting your hand or use a lit incense stick and watch the trail of smoke for indications of drafts.
2. Check your insulation– in the attic you should find both insulation and a vapor barrier underneath it. If your basement is heated, there should be insulation in the walls, around pipes, the water heater and ducts. If your basement is unheated you should also find it installed underneath living areas. Of course, there should be insulation in your walls as well. To check, turn off the electricity in your home, remove an electrical outlet plate and push a stick (a chopstick works really well) into the gap–resistance indicates insulation.
3. Heating and Cooling Equipment– these energy draining systems have come a long way in terms of efficiency, size and noise levels. If your equipment is more than 15 years old, you can most likely save as much money in lower utility costs over a couple years as you spend replacing them with a new, quiet efficient system. Plus, new tax credits and incentives [anchor to Tax Incentives Info below] make replacing older units a logical choice. Regardless of age, all HVAC equipment should be serviced annually by a certified professional to maintain efficiency.
4. Think about your lights– replacing incandescent bulbs with fluorescents and/or LEDs not only dramatically reduces the amount of energy it takes to light up your home, it also significantly reduces the amount of heat produced and creates less work for your AC system. Avoid halogen lamps which produce a great deal of heat. Install dimmer switches where they can be used and motion sensors on exterior lights.
A professional home energy audit is relatively inexpensive and provides invaluable information. After a thorough survey of your home, a licensed and certified professional can suggest measures geared specifically to your property that will make your home more comfortable and reduce utility bills.
A professional home energy audit should include the following:
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