The furnace is quite possibly one of the most important systems in your home. As such, you need to take good care of it so that it always works optimally. This won't be that difficult as long as you avoid these common furnace maintenance mistakes.
Not Switching Out the Air Filter
Many homeowners don't realize just how important the air filter is to the longevity and efficiency of their furnace. Then when it's not changed out regularly, dirt and debris can get in your heating system and cause costly repairs that could have easily been prevented.
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