Westinghouse WGen11500TFc published runtime
- Gasoline: 19 hours at 25% load and 9.5 hours at 50% load on 9.5 gallons
- Propane: 7 hours at 50% load on a 20 lb tank
- Natural gas: no runtime published (continuous utility supply)
The propane figure combines two statements on Westinghouse's current WGen11500TFc product page: the specification table lists 7 hours propane runtime at 50% load, and the feature text says up to 7 hours on a 20 lb propane tank.
Verified specifications
- Manufacturer
- Westinghouse
- Model
- WGen11500TFc
- Generator type
- Conventional / Tri-Fuel
- Gasoline: running
- 11,500 watts
- Gasoline: starting / max
- 14,500 watts
- Gasoline: tank
- 9.5 gallons
- Gasoline: published runtime
- 19 hours at 25% load on 9.5 gallons
- Gasoline: published runtime
- 9.5 hours at 50% load on 9.5 gallons
- Propane (LP): running
- 10,500 watts
- Propane (LP): starting / max
- 13,500 watts
- Propane (LP): published runtime
- 7 hours at 50% load on a 20 lb propane cylinder
- Natural gas: running
- 9,500 watts
- Natural gas: starting / max
- 12,000 watts
- Engine
- Westinghouse 550cc 4-stroke OHV
- Displacement
- 550cc
- Weight
- 230 lb
- Starting system
- Push-button electric start, remote key fob, recoil backup
- CO safety
- CO sensor with automatic shutdown
Source: Westinghouse — View Westinghouse Specifications ↗
Specifications verified: September 28, 2026
How much gas does the WGen11500TFc use?
- At 25% load: 9.5 gal ÷ 19 h = 0.50 gallons per hour
- At 50% load: 9.5 gal ÷ 9.5 h = 1.00 gallons per hour
These are our calculations from Westinghouse's published tank size and runtimes, not Westinghouse figures.
Transfer switch outlets
Westinghouse lists an L14-30R 120/240V transfer-switch-ready outlet and a 14-50R 120/240V outlet. Connecting a generator to a home must follow local codes and the manufacturer's instructions, using a qualified electrician where required.
Manufacturer figures vs. our estimates
Only the runtimes listed above are Westinghouse's own published figures. When your load and fuel amount exactly match one of them, the calculator labels the result Manufacturer Published Runtime. Loads between published figures are labeled Estimated from Manufacturer Data, and loads outside the published range are labeled Extrapolated with a wider range. Those are GeneratorRuntime estimates, not Westinghouse specifications.
Operate it safely
Like every portable generator, the Westinghouse WGen11500TFc must be operated according to the manufacturer's safety instructions: outdoors only, well away from doors, windows, and vents, with battery CO alarms inside your home. A CO shutoff feature is not a substitute for safe placement. Never refuel while the engine is running or hot.
Westinghouse WGen11500TFc FAQ
›How long will a Westinghouse WGen11500TFc run on gasoline?
Westinghouse lists 19 hours at 25% load and 9.5 hours at 50% load on the 9.5-gallon tank.
›How long will a WGen11500TFc run on propane?
Westinghouse lists 7 hours at 50% load on a 20 lb propane tank. Other loads are extrapolated by the calculator and labeled as such.
›How long will it run on natural gas?
Natural gas comes from a utility line, so there is no tank to run out. Westinghouse does not publish a natural-gas consumption figure for this model.
›How many watts does the WGen11500TFc produce?
Gasoline: 11,500 watts running / 14,500 watts peak. Propane: 10,500 watts / 13,500 watts. Natural gas: 9,500 watts / 12,000 watts.
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Browse the full Generator Runtime Database or use the main Generator Runtime Calculator.