Is the primary issue heating or cooling? It makes a difference as you can use the existing well (pump and dump), with a water temp of about 45F, as GREAT summer heat pump cooling. Plenty of "cold" BTUs there (for your area).
Winter heating is tougher . . .
Think of about 3 GPM per ton of heating or cooling.
Steve
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consulting on geothermal heating/cooling & rational energy use since 1990
Last edited by stevehull; 05-16-14 at 08:12 PM..
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