Why We Think a Heat Pump Works Like a Faucet
The thermostat said 60, the house said 72, and the man standing next to it had not slept. It was a July morning, the kind where it is already 84 degrees at seven and the wind feels like somebody left an oven door open. Brick ranch on the edge of town, built in the seventies, decent insulation, a three ton split system about eight years old. Nothing fancy, nothing neglected. The customer was a fellow in his fifties who has worked around machinery his whole life. Pumps, compressors, engines. He changes his own oil and keeps the receipts for the filters. Hold onto that, because it matters later…
The skinny
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