It’s just an idea, but would not this work: My home is built on pillars, and skirting closes the space underneath it off. I want to weld up a meandering system of pipes in a shut loop, filled with water; and somewhere in the loop, I would install an instant water heater. That heater would heat up the water and keep it pumping around, and since the intake water temperature would be rising ever higher, it could probably run on very tiny energy – maybe low enough to be fed only with a 400W wind turbine?
I’d love to hear your view on this. I know nothing about plumbing or heating, but I am an adventurous guy and will try this sort of stuff unless somebody advises me otherwise – so, if you think I shouldn’t try this, would you please let me know ans also tell me why?
Thanks so much.

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