DuroMax XP15000HX Dual Fuel vs Westinghouse WGen9500TFc Tri-Fuel
The DuroMax XP15000HX Dual Fuel is the more powerful unit: 12,000 running watts against 9,500 — about 21% more capacity for the DuroMax XP15000HX Dual Fuel. The Westinghouse WGen9500TFc Tri-Fuel is the quieter of the two (74 dBA vs 78 dBA — though manufacturers measure noise at different loads and distances). The Westinghouse WGen9500TFc Tri-Fuel offers more fuel flexibility (gasoline, propane, natural gas) where the DuroMax XP15000HX Dual Fuel runs on gasoline and propane.
| DuroMax XP15000HX Dual Fuel | Westinghouse WGen9500TFc Tri-Fuel | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline, propane, natural-gas |
| Running watts (gas / LP for standby) | 12000 W | 9500 W |
| Starting watts (gas) | 15000 W | 12500 W |
| Running watts (propane) | 11400 W | 8500 W |
| Starting watts (propane) | 14250 W | 11200 W |
| Running watts (natural gas) | — | 7500 W |
| Starting watts (natural gas) | — | 9500 W |
| Noise level | 78 dBA | 74 dBA |
| Runtime at 50% load (gas) | 12 h | — |
| Fuel tank | 13.2 gal | 6.6 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | 50 A | 50 A |
| Start type | electric | remote electric |
| CO safety shutoff | Yes | Yes |
| Engine displacement | 670 cc | 457 cc |
| Weight | 345 lb | 215 lb |
Frequently asked questions
Which is more powerful, the DuroMax XP15000HX Dual Fuel or the Westinghouse WGen9500TFc Tri-Fuel?
The DuroMax XP15000HX Dual Fuel, 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.