Jeff5may, that's what made me decide to post it. I constructed this unit as a self-teaching tool and proof of concept for GSHP. I learned enough to successfully build and install my 4 ton unit.
MN_Renovator, the water was coming from a well I have on the property. I am currently sourcing about 60% of the heat for my 4 ton GSHP from the same well. My land is on a lake and I have some artesian springs that feed a small pond via a stream. They rarely freeze during the winter. When they do freeze, it's very thin ice and only lasts from few days up to a week.
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