Air-conditioners do great good, but at a high environmental cost

Re:Air-conditioners do great good, but at a high environment... by danmaz74 on Tuesday August 28, 2018 @04:20PM (#17862500)

Actually, heating with a heat pump is much more efficient than using a resistance.

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Re:Air-conditioners do great good, but at a high environment... by Tharkun on Wednesday August 29, 2018 @02:37AM (#17866158)

That's mostly true, but only if the temperature difference isn't too high. During the coldest days of winter -- or when boiling water, I'd imagine -- the COP can be as low as 1, ie the same as resistive heating.

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