Brands Westinghouse

Inverter generator

Westinghouse iGen12000DFc

A dual-fuel inverter generator rated at 9,000 running and 12,000 starting watts, with a 7.9-gallon tank and up to 19 hours of runtime at 25% load. It shuts itself off if carbon monoxide builds up, has 120/240V output for a transfer switch and can run in parallel with a second unit. Westinghouse rates it at 64 dB(A).

Running watts
9,000 W
Starting / surge watts
12,000 W
Fuel
gasoline, propane
Best for
Home backup through a transfer switch, including bigger loads, with clean power for electronics.
Not for
Indoor or garage use. Like every fuel-burning generator it must run outdoors, away from windows.

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Specifications

Power
Running watts9,000 W
Starting / surge watts12,000 W
Fuelgasoline, propane
Inverter (clean power)Yes
Parallel capableYes
Runtime
Runtime at 25% load19 h
Fuel tank7.9 gal
Outlets
Outlets120/240V L14-30R, 120/240V 14-50R
Transfer-switch readyYes
Build
Noise64 dB(A)
Safety & compliance
CO safety shutoffYes
Standard warranty3 years

Checked 29 October 2026. Sources: westinghouse.com.