A heat pump furnace combination maximizes energy efficiency ... In warm weather, the heat pump functions as an air conditioner, removing heat from your home to keep it cool. In cool weather ...
The Spruce on MSN1mon
9 Signs That You Should Replace Your Old Furnace Now, According to an HVAC ProMost homes will use a combination of a furnace and an air conditioner to control the temperature of the air inside the house.
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