Quote:
Originally Posted by Piotrsko
Pretty sure a heat pump doesn't do anything near 100% efficiency because moving air with a fan is horribly inefficient. Think they quoted 85%. In my case I waste 2500 watts just running air through with the all 3 of the fans on: 2 outside, one in the heat exchanger. Add another amount for the compressor if it's needed and your talking serious wattage
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But fans usually take up only a few watts. If the total amount of electricity used is in the thousands of watts, but a fraction of that is for fans, and of those fans 15% is of the energy is lost, that's not bad in reality.