By the way, I bought my A/C components from Surplus City Liquidators. If you buy an air handler and outdoor unit, they will give 10% off their already low prices on everything on that order-ductwork, wyes, etc. Since the A/C units lower the "class" of freight, it adds almost nothing to ship high-damage-risk items like sheetmetal which would be cost prohibitive to ship by themselves. They have nearly everything you would need to hack build a GSHP.
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"I‘d put my money on the sun and solar energy. What a source of power! I hope we don‘t have to
wait until oil and coal run out before we tackle that." Thomas Edison, 1847 — 1931
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