Improving hot water heat pump tank efficiency with free dryer heat
Hi. I have been thinking about how to improve my GE electric hot water heat pump efficiency, particularly in the winter months. It is located in a very well insulated utility room off the garage (larger than recommended minimum volumes). The by-product of using the heat pump is cool, dry air, which in turn creates a cold room calling for accessory heat to warm the room back up to temp for the heat pump to then work efficiently again. I find the room temp is fluctuating up and down in conjunction with the use of heat pump this not making it as efficient as it could be. So my question is: could I seasonally vent my dryer into this room (assuming proper filtering of the incoming air and insuring on a daily basis that the hot water tank filter remains clean)? My dryer sits against an adjoining wall and currently has its ductwork traveling through this room already. I could install a 4″ Y and in the winter months divert the dryer exhaust into that room. Free heat. Thoughts?? Thank you.
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