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geotherm...
A friend recently checked into that. His place is about 1200 sq. ft. and it was estimated he'd need about 4,000 feet of 1" tubing in the ground. It would be at least 4' deep and spaced at least 4' apart. Since he has acres of fields around him, he could easier just do a loop. He's still considering going the route of drilling the well(s) as it could be cheaper. Unless he does the trenching himself. There is a formula for figuring it. How big the house is and it's composition ='s how many tons of heating is required. This then translates to how long the ground tube needs to be. A moist area is best as it conducts the heat better. The best thing about geo is that you get the a/c benefits free. It just works in reverse for the hot days!
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