Generac GP8000E COsense vs Westinghouse WGen11500TFc Tri-Fuel
The Westinghouse WGen11500TFc Tri-Fuel is the more powerful unit: 11,500 running watts against 8,000 — about 30% more capacity for the Westinghouse WGen11500TFc Tri-Fuel. The Westinghouse WGen11500TFc Tri-Fuel offers more fuel flexibility (gasoline, propane, natural gas) where the Generac GP8000E COsense runs on gasoline.
| Generac GP8000E COsense | Westinghouse WGen11500TFc Tri-Fuel | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline | gasoline, propane, natural-gas |
| Running watts (gas / LP for standby) | 8000 W | 11500 W |
| Starting watts (gas) | 10000 W | 14500 W |
| Running watts (propane) | — | 10500 W |
| Starting watts (propane) | — | 13500 W |
| Running watts (natural gas) | — | 9500 W |
| Starting watts (natural gas) | — | 12000 W |
| Noise level | — | 74 dBA |
| Runtime at 50% load (gas) | 10 h | — |
| Fuel tank | 7.9 gal | 9.5 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | 30 A | 50 A |
| Start type | electric | remote electric |
| CO safety shutoff | Yes | Yes |
| Engine displacement | 420 cc | 550 cc |
| Weight | 198 lb | 230 lb |
Frequently asked questions
Which is more powerful, the Generac GP8000E COsense or the Westinghouse WGen11500TFc Tri-Fuel?
The Westinghouse WGen11500TFc Tri-Fuel, at 11,500 running watts on its best fuel versus 8,000 W. Remember that dual-fuel and natural-gas ratings are lower than gasoline ratings — the comparison table shows the published per-fuel figures.
Where do these specifications come from?
Every record on BackupAtlas is hand-curated from manufacturer documentation and spec sheets, and each generator page links to its source document.