Cold-Climate Capacity and Defrost-Adjusted Sizing Estimator

Size a commercial air-to-water heat pump the right way — on retained capacity at your design temperature, plus a defrost derate. Indicative only; final selection is engineered per project.

Design heating load (kW)

Winter design temperature (°C)

Defrost correction factor

— kW

Minimum gross installed capacity (defrost-adjusted)

Design heating load —

Defrost-adjusted gross requirement —

Recommended EVI tier —

Indicative KADFM-042H module count* —

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Cold-Climate Capacity and Defrost-Adjusted Sizing Estimator

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