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A Dirty Little Secret About Your Furnace and Air Conditioner.

Posted On: March 1, 2011

You may not know it, but simply keeping your furnace and air conditioner clean can help reduce heating and cooling costs. Here’s the dirt on cleaning up your act:

Nine out of 10 system failures are caused by dirt and dust.” (LCES) Louisiana Cooperative Extensions Service.

“A build-up of .042 inches of dirt on heating or cooling coils can result in a decrease in efficiency of 21%.” (EPA) Environmental Protection Agency.

“Clean systems restore capacity and lessen running time.” (LCES) Louisiana Cooperative Extensions Service.

“Most commercially purchased fiberglass filters are only 7% efficient in stopping dirt, dust, pollen, etc. from passing through it.” (ASHRAE) American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.

There are two coils in the system; an indoor coil (sits over the furnace in the ductwork – you can’t see it) and an outdoor coil. To keep your coils clean, call a professional technician for a tune-up at least once a year for each system.