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4000ft?? That can't be right. I say that because I just find that hard to believe. Although not as efficient as a Geothermal heat pump, a regular condenser doesn't have anywhere near that much tubing.
If anything I thought a few hundred feet of trenching would do, since the tubing is coiled in the trenches.
BTW, what makes Geothermal so complicated? From the way I see it, it should be as easy as replacing the outside condenser's coil with tubing that runs underground and leaving the same evap setup in house.
I see this... Tubing underground or in water, a box (Similar to a condenser) that pumps whatever (Water, rad fluid, etc) though the tubing to exchange the heat and to carry it to a evaporator at the ducts. Why, why isn't it that simple?
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