Water to Air Heat Exchange for Summer Cooling
Need someone with Math skills here to calculate the effectiveness of using a Water to Air Heat Exchanger to cool a home in the summer using a system of ground loops circulating glycol with no heat pump involved. Just circulating fluid through the ground loops and running a fan through the heat exchanger. We are in Zone 4 but close to Zone 5. Assuming the temperature of the earth is 56 degrees, and the maximum summer temperature is 95 degrees, how many linear feet of 3/4″ pipe would I need to lay in order to keep the home at a comfortable 74 degrees? We may add a hot water solar panel in the future to add heat if it is feasible. House is roughly 3000 square feet, built in 1960 with R13 in the walls, attic has been reinsulated to R45, all windows are new with U-factor of .30. We have been working at air sealing as well.
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