this post was submitted on 21 Aug 2026
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yeah it's mainly a benefit in summer.
In winter it can be beneficial if you also have a heat pump furnace. Otherwise the heat is ultimately coming from gas or resistive heating. ~~That's not a problem, it's just not a gain in efficiency in winter.~~ Actually it is slightly more efficient as he explains later in the video.
The main thing I don't like about my HPWH is it's a bit noisy when it's running.
edit: I have not had the random cold water issues he said he's had in the video.