Heating
Oil furnace burner and blower running watts and starting watts
Use these values as a planning range only. The conservative default for oil furnace burner and blower is 900 W running and 2,000 W starting.
| Load type | Low | Default | High |
|---|---|---|---|
| Running watts | 500 W | 900 W | 1,400 W |
| Starting watts | 1,200 W | 2,000 W | 3,000 W |
Source note
Oil burner and blower startup varies by model; default adds margin and should be checked against the service label.
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.