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Old 03-05-15, 11:45 AM   #100
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Originally Posted by randen View Post
You are right the loop field is cold inlet 3.2 Deg. C. and returning 1.9 Deg. C.
Is that within your "design" specs ? I would think that anything above 4C would be a good "target".

Some recent research I have done shows that ground water temperature below about 10m is constant all year. What is your experience ?

What size is your loop ? Horizontal or vertical ? If vertical, how many and what diameter are your bore holes ?
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