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A comment on Gravity Energy Storage: Alternative to batteries for grid storage. Parent comment

Re:Gravity Energy Storage: Alternative to batteries for grid... by choeger on Wednesday January 06, 2021 @04:38AM (#25656117)
Err, what? The heat exchanger has to be outside the house of course! Who would even build that inside? That's crazy!
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Re:Gravity Energy Storage: Alternative to batteries for grid... by semi-extrinsic on Wednesday January 06, 2021 @08:46AM (#25657634)
To counter that point, high-end tumble dryers are universally built with a heat pump that is all located inside the same room (it's even in the same device).

It's because they are cooling air to dehumidify it (the drying part), then they pump the heat back into the same air to circulate back into the wet clothes.

https://images.jifo.co/10180236_1567417620885.png

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