Are heat pumps difficult or do we forget the basics and over think? For the ones learning, we are simply changing the direction in which refrigerant flows. The indoor coil, which in traditional AC systems is the evaporator, now becomes the condenser and rejects its heat into the space rather than out side. The outdoor coil, known as the condenser in traditional AC systems becomes the evaporator and absorbs heat from the outdoor ambient. Yes, even in cold temps, there is always heat to absorb.

Posted by HVAC Know It All at 2021-10-05 12:57:01 UTC