Thanks for the info. That appears to be a real possibility. I've looked at some info about downwell heat exchangers and they look like they do in principle the same thing that I want to do. All of the info that I've found so far deals with using underground aquafers that operate at...
I want to use my 30 gal/min flowing well for an open loop geothermal system but my township has an ordinance against open loop systems with no appeal process. The well currently flows into a 90 gal tank and then overflows down to a creek. Would it be practical to build a heat exchanger that I...