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Heat pump size calculator

Estimate the heating and cooling capacity your home may need.

Home sizeEnter the conditioned floor area.sq ft

Winter climateChoose the coldest typical winter conditions.

Insulation and air sealingChoose the closest description of the home.

Average ceiling heightUse the typical height across the conditioned rooms.ft

One system, two loads

A heat pump must cover summer cooling and winter heating. The larger load sets the early capacity target.

Home heating demandHeat pump output

Check the selected model's published capacity at your local design temperature before buying.

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HVAC Judge provides general information and planning estimates, not a diagnosis, installation design, warranty decision, or contractor quote. Check equipment details with the manufacturer and use a qualified HVAC professional before repair, replacement, or installation.