xkcd

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Heat Pump: 2790 (xkcd.com)

submitted 2 years ago by intelati@lemmy.world to c/xkcd@lemmy.world

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[–] gregw@lemmy.gregw.us 2 points 2 years ago

They're not only for heating though, they can cool as well.

I guess I interpreted the comic backward; they're heating the room not cooling it.