Geothermal greenhouses
I've seen a couple people attempt a poor-mans geothermal with pumping air through irrigation tubes 8ft underground- eg https://www.youtube.com/watch?v=IZghkt5m1uY
Has anyone attempted to build one of these?
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Where does all the condensation go? Does it mold in the ducts? I assume their perforated... but still
9h|
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