Heating

Gas furnace blower running watts and starting watts

Use these values as a planning range only. The conservative default for gas furnace blower is 700 W running and 1,600 W starting.

Load typeLowDefaultHigh
Running watts400 W700 W1,200 W
Starting watts900 W1,600 W2,500 W

Source note

Furnace blower motors vary by ECM/PSC design; default reflects common residential nameplate ranges.

Source reference

Never operate a fuel-burning generator indoors, in a garage, on a porch, or near open windows. Use a listed transfer switch or interlock installed by a qualified electrician for home wiring, and verify actual device nameplates before buying equipment.

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