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FUSHIGI
Join Date: Feb 2006
Location: somewhere between here and there
Posts: 10,839
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Installed geotherm. 10 years ago with new construction. Horizontal loop in wet clay. Supplement with a gas fireplace when it gets below 0F. Cool for very little in summer too! At one time I read that geotherm. is up to 400% efficient. I'm not an engineer so that sounds impossible to me.
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