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Heating Size Calculator

A rough BTU/h estimate for a furnace or heat pump, based on your home — not the label on the old unit.

1800

Ballpark only. Real sizing accounts for layout, ductwork, orientation and heat loss — which is exactly what our free assessment does.

Estimated heating output
1 daytypical install
Freewritten quote
Get the real number — free quote

Estimates are a start. Quotes are a promise.

A free site visit turns this ballpark into a written, itemized price you can hold us to.