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Replaced my electric resistance water heater with heat pump, dramatic reduction in energy usage (infosec.pub)

submitted 6 days ago by pageflight@lemmy.world to c/homeimprovement@lemmy.world

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cross-posted from: https://lemmy.world/post/34021020

I recently installed an Emporia Vue with monitoring for the individual circuit my water heater is on. It captured the very significant difference in energy usage from replacing resistive heat with heat pump.

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[–] KlavKalashj@lemmy.world 1 points 4 days ago (1 children)

You can also connect it through the wall so that it uses outside air for its energy. Modern heat pump technology is so good it can remain effective all the way down to -25C.

[–] speculate7383@lemmy.today 1 points 19 minutes ago

While that is true of heat pump technology in total, I have not seen any heat pump water heaters in the US that work below freezing. One example: my Rheem manual says it will work down to about 42F / 5C. Below that, it uses resistive heating elements.

But I'm sure it's coming eventually to water heaters.