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Furnace Filter Arrows: What Do They Mean?

Furnace Filter Arrows: What Do They Mean?

Proper installation of a furnace filter means making certain it’s facing the right direction. The filter cleans airflow returning to the furnace from rooms throughout your entire house. In a

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    David Mathewst David Mathews is the owner of CCAC Air Conditioning and Heating. A Corpus Christi native... More »