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  • Writer's picturePaul Cummins

What size AC unit do you need?

Updated: Sep 21, 2019

Just did a 3700 square foot house with only one HVAC system. Nice new Bryant heat pump.

It had a 4 ton unit, 48,000 BTU/hr equals 4 tons of ice melting heat removed from the house per day.

This is from DOE.

VA is in zone 3 so we need more than 5 tons, or two units equaling about 6 tons.

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