Geothermal Heat Exchanging

Vumar said:

My goal here is to lay out 200-300 ft of garden hose buried in the ground X feet deep. The garden hose would be hooked up to a water pump and circulated through the hundreds of feet of tubing. The out/exhaust would obviously be cold(er) and dumped back into the RDWC system.

Any idea on how far on average I would have to dig vertically to achieve a good cold/heat exchange rate? East Coast with a soil thats primarily sand, clay, and silt mixtures. Link below if I wasn't detailed enough for a visual picture.


https://www.google.com/search?tbm=isch&tbs=rimg:CRB1hh8h4gkcIjgFnG1AGNjk_1p2h0YWVZ6xkRdF-dFhWDBb4-ynB6BbV_1Oydn3okzggTbNeyOVU0AyB2mHgdNSQM1yoSCQWcbUAY2OT-EVoGaRYo6ZIIKhIJnaHRhZVnrGQRa3DRSl2Ep3wqEglF0X50WFYMFhGZzyo3hrjXOyoSCfj7KcHoFtX8Efejc8knYmAvKhIJ7J2feiTOCBMRdh7URaXNftQqEgls17I5VTQDIBGIKbLL-jlDDCoSCXaYeB01JAzXERXZGOI-d77h&q=geothermal heat exchanger&ei=wVjrVJK0OMzsUpmEgdAF&ved=0CAkQ9C8wAA#imgdii=_&imgrc=8U99z9feHFBGDM%3A;MG7yVgIVjsRP6M;http%3A%2F%2Fwww.drenergysaverva.com%2Fcore%2Fimages%2Fdes%2Fheating-cooling%2Fheating%2Fheating-types%2Fgeothermal%2Fgeo-sm.jpg;http%3A%2F%2Fwww.drenergysaverva.com%2Fheating-cooling%2Fheating%2Fgeothermal-heat-pump-heating.html;300;278

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Vumar said:

My goal here is to lay out 200-300 ft of garden hose buried in the ground X feet deep. The garden hose would be hooked up to a water pump and circulated through the hundreds of feet of tubing. The out/exhaust would obviously be cold(er) and dumped back into the RDWC system.
Any idea on how far on average I would have to dig vertically to achieve a good cold/heat exchange rate? East Coast with a soil thats primarily sand, clay, and silt mixtures.

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dbkick said:

First you're talking about commercial systems. This is vum and a few gallons of water chilled a few degrees but unless he has a trencher that will do the 8ft deep cooper was talking about then .......1/10th horse chiller.vum.

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