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A comment on Air-conditioners do great good, but at a high environmental cost. Parent comment

Re:Air-conditioners do great good, but at a high environment... by maxerickson on Tuesday August 28, 2018 @07:38PM (#17863917)
Even really nice furnaces lose some energy up the flue, so they are less than 100% efficient. They hit ~95%, which is really good, but it's less than 100%.
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Re:Air-conditioners do great good, but at a high environment... by sokoloff on Tuesday August 28, 2018 @08:07PM (#17864039)
Heat pumps can exceed 100% efficiency (as measured by heat moved into the building divided by energy input to the heat pump).
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Re:Air-conditioners do great good, but at a high environment... by maxerickson on Tuesday August 28, 2018 @08:10PM (#17864056)
If we are being pedantic, they aren't furnaces with flues.
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