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Old 03-04-15, 08:37 AM   #7
theoldwizard1
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Join Date: Oct 2014
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Quote:
Originally Posted by Mikesolar View Post
I would guess that you would have stable temps from 10' down or at least no possibility of freezing.
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That number will be different in the far north tho. The number may be 20ft.
I was reading on another forum about folks who had installed horizontal loops at 12-15' deep, actually getting inlet water from their loop well below freezing ! Sure, it has been cold in the Midwest USA, with temps below 0F, but if your inlet water temp is below freezing, IMHO, you have a SERIOUS design/installation flaw !
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