this post was submitted on 25 Nov 2024
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Don't think I need to summarize this one. This is bad news for everyone.

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[–] invalid_name@lemm.ee 0 points 3 hours ago* (last edited 3 hours ago) (1 children)

Heat pumps work at >100% thermal efficiency.

Air conditioners dont.

As a Californian, I'm also, hesitantly, with you.

[–] douglasg14b@lemmy.world 7 points 2 hours ago* (last edited 2 hours ago) (1 children)

Heat pumps work at >100% thermal efficiency.

Air conditioners dont.

An air conditioner is a heat pump... That just works in one direction. It uses refrigeration just the same.

They both rely on creating a thermal gradient between two heat exchangers. And they are both negatively affected by extreme temperature gaps.

The heat exchanger facing outside with a heat pump must be colder than ambient temperature by a reasonable margin. The opposite goes for an AC. These qualities break down in extreme ranges for typical hardware.

This also, as expected, reduces the efficiency.

[–] invalid_name@lemm.ee 1 points 2 hours ago

Same machine

Yes. Kinda the point.

extremes make everything harder

Yeah extremes do suck.