DuroMax XP15000HX Dual Fuel vs Westinghouse WGen9500DF
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 WGen9500DF is the quieter of the two (74 dBA vs 78 dBA — though manufacturers measure noise at different loads and distances).
| DuroMax XP15000HX Dual Fuel | Westinghouse WGen9500DF | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline, propane |
| 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 |
| 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 |
| Outlets | — | 2x GFCI 5-20R duplex, L14-30R, 14-50R |
| Start type | electric | remote electric |
| CO safety shutoff | Yes | — |
| Engine displacement | 670 cc | 457 cc |
| Weight | 345 lb | 211 lb |
Frequently asked questions
Which is more powerful, the DuroMax XP15000HX Dual Fuel or the Westinghouse WGen9500DF?
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.