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Ancient Iran had air conditioning (lemmy.world)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 1 year ago* (last edited 1 year ago)

I think I heard it's more around the 150-200% mark

Most cheap air conditioners have COPs (coefficients of performance) around 3.2-3.5, which means 320-350% efficiency. In real world conditions, the best systems reach 4.5, though the theoretical limit is about 8.0.