I have a friend of mine in the water well drilling business and he has
played with this off and on for a few years. It works fine with a heat pump
and is good in New England where in the winter the air is cold and in the
summer it can be hot but the ground water temp is somewhat constant.

At 10:47 AM 4/7/02 -0500, you wrote:
>Hello to all,
>
>Here's an idea that I wanted to run past whoever is interested.
>
>I have 2 unused water wells on my property that are seperated by 100 feet.
>One well has a 30 inch diameter concrete casing and is 36 feet deep.  The
>other well has an 18 inch diameter casing and is about 25 feet in depth.
>
>My idea is to pump water from well # 1 into a small, insulated pressure
>tank.  At the tank outlet would be a solenoid valve to let the water flow
>into some sort of heat exchanger in the furnace plenum.  Another valve would
>be located on the other side of the heat exchanger to discharge the warmed
>water into the second well.  The plan would be to monitor air temperature in
>the plenum and when it has reached a certain limit open both valves to force
>the warmed water out.  Additional temperature probes in the input and output
>lines could be used to determine when the exchanger is full of cold water.
>I have a probe in well # 1 now and the water temperature is 51 degrees.
>
>I would welcome any comments or experiences anyone has had along these
>lines.
>
>                                    Rod
>
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Larry G. Nelson Sr.
mailto:L.Nelson@ieee.org
http://www.ultranet.com/~nr

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