Quote:
Originally Posted by masraum
The cooling part of the heat pump is AC. The heating part is the same, but flipped around backwards. I think it's cheaper/more efficient to heat with a heat pump if the pump and your cold temps support it. On top of that, having NG/LPG, heating requires another service and more complexity and presumably, greater cost. And some environments don't have/use a lot of NG/LPG.
I think ^that's^ correct in general.
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I believe it's the opposite, that heat pumps use less energy to cool than to heat.
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