Westinghouse WGen12000DF vs Westinghouse WGen9500
The Westinghouse WGen12000DF is the more powerful unit: 12,000 running watts against 9,500 — about 21% more capacity for the Westinghouse WGen12000DF. The Westinghouse WGen12000DF offers more fuel flexibility (gasoline, propane) where the Westinghouse WGen9500 runs on gasoline.
| Westinghouse WGen12000DF | Westinghouse WGen9500 | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline |
| Running watts (gas / LP for standby) | 12000 W | 9500 W |
| Starting watts (gas) | 15000 W | 12500 W |
| Running watts (propane) | 10800 W | — |
| Starting watts (propane) | 13500 W | — |
| Noise level | — | 74 dBA |
| Fuel tank | 10.5 gal | 6.6 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | 50 A | 50 A |
| Outlets | 2x 5-20R, L5-30R, L14-30R, 14-50R, 2x USB | — |
| Start type | remote electric | remote electric |
| Engine displacement | 713 cc | 457 cc |
| Weight | 352 lb | 208 lb |
Frequently asked questions
Which is more powerful, the Westinghouse WGen12000DF or the Westinghouse WGen9500?
The Westinghouse WGen12000DF, at 12,000 running watts on its best fuel versus 9,500 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.