I agree that a heat pump used as an intermediate step between the cistern water at 55 degrees, and cool house temps is solid technology, and not in dispute. 55 degree water will chill 70 degree air. Will it make it cold? no, but it will make a difference, and it is cheap. Warming the cistern water to 70 degrees from 55 is a massive sink. Will it recover over night? Maybe. In 1978, I was living on a farm in northern Ohio. It had an abandoned 4 inch 60 foot deep well, with water 30 feet deep in it. I made a shelf in a porch to kitchen window, and dismembered a 5 ton air conditioner, leaving the exhaust side (cold) intact with its recirc system Hay wired on (literally). I cut and unfolded a truck condenser core so it would be about 20' long and 3 inches across. Soft aluminum. I adapted the inlet and outlet fittings to accept 3/4" automotive heater hose. I created an aluminum tub container into which I placed the condenser of the AC unit. I used a 1/5th hp circulation pump to push second circuit water through the well exchanger, and into the tub. Suction was from the bottom of the tub. the temp of the return water from the well raised over the month I used it only 1.5 degrees. the cooling was solid and cycled to keep it at 68 degrees in the old farm house. Fun stuff. Jim
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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