Sales are growing so quickly that some installers wonder whether heat pumps could even wipe out the demand for new air conditioners in a few years and put a significant dent in the number of natural gas furnaces.

  • sik0fewlOP
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    1 year ago

    A friend of mine just had a new heat pump/furnace combo installed. It has a single controller for the whole system (is my understanding), so the heat pump will run normally and the furnace will kick in if needed. I can’t recall the details of when exactly the furnace kicks in.

    • Myriadblue
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      31 year ago

      That is how mine works. You can also get a rig that will slightly heat the air inside the heat pump to let it operate at much lower temperatures than normal. Supposedly more efficient than using the furnace.