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submitted 4 months ago* (last edited 4 months ago) by wabafee@lemmy.world to c/showerthoughts@lemmy.world
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[-] Silentiea@lemmy.blahaj.zone 2 points 4 months ago

A heat pump can heat a home by more than the energy in the electricity it uses. It's more than 100% efficient at "converting electricity into heat in your home". It does that by not actually covering electricity but by moving heat, and it is less than 100% efficient at converting electricity into motion, and introduces some waste heat

[-] hperrin@lemmy.world 1 points 4 months ago

The efficiency of a machine isn’t measured at how effective its job is, but how efficiently it does that job. If it moved heat without producing any waste heat, it would be 100% efficient. If it produces any waste heat at all it’s not 100% efficient. No machine can ever be more than 100% efficient. That would violate the laws of thermodynamics.

[-] Silentiea@lemmy.blahaj.zone 1 points 4 months ago

Hence why I clarified what it was efficient at doing.

this post was submitted on 28 Apr 2024
212 points (89.0% liked)

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A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.

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