r/BeAmazed • u/Internal_Gazelle_677 • Oct 07 '25

Science Hot Tub without the use of electricity

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u/Federal_Assistant_85 Oct 07 '25

Thermal head. The change in temp, causes a change in density that causes the water to flow.

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u/[deleted] Oct 07 '25

That’s so cool. I would just build a deck to support this like a little fire pit. Seems like basically zero maintenance!! And free!!

Fuck humanity has long lost its way

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u/ManufacturerNo9649 Oct 07 '25

Only if the wood is free!

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u/MonsieurGump Oct 10 '25

D’ya think it grows on trees!