What Is An Air Filter?
The central cooling and heating systems air filter often gets over looked, usually due to accessibility of the filter. But it is vital to the proper operation of the system and for the indoor air quality as well. Dirty filters cause reduced air flows, resulting in harder working cooling or heating cycles. On oil or gas fired furnaces, the fire chambers get hotter than normal, and could cause premature heat exchanger failures. On electric strip heaters, the elements get hotter than designed, and periodically, burn out. These type of failures are costly and can be avoided by regular filter changes, usually monthly, on the day that the power bill is paid.
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