DuroMax XP15000HX Dual Fuel vs Generac GP17500E
The Generac GP17500E is the more powerful unit: 17,500 running watts against 12,000 — about 31% more capacity for the Generac GP17500E. The DuroMax XP15000HX Dual Fuel offers more fuel flexibility (gasoline, propane) where the Generac GP17500E runs on gasoline. The DuroMax XP15000HX Dual Fuel runs longer at half load — 12 hours on its 13.2-gallon tank vs 10 hours.
| DuroMax XP15000HX Dual Fuel | Generac GP17500E | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline |
| Running watts (gas / LP for standby) | 12000 W | 17500 W |
| Starting watts (gas) | 15000 W | 26250 W |
| Running watts (propane) | 11400 W | — |
| Starting watts (propane) | 14250 W | — |
| Noise level | 78 dBA | — |
| Runtime at 50% load (gas) | 12 h | 10 h |
| Fuel tank | 13.2 gal | 16 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | 50 A | 50 A |
| Start type | electric | electric |
| CO safety shutoff | Yes | — |
| Engine | — | Generac OHVI |
| Engine displacement | 670 cc | 992 cc |
| Weight | 345 lb | 390 lb |
Frequently asked questions
Which is more powerful, the DuroMax XP15000HX Dual Fuel or the Generac GP17500E?
The Generac GP17500E, at 17,500 running watts on its best fuel versus 12,000 W. Remember that dual-fuel and natural-gas ratings are lower than gasoline ratings — the comparison table shows the published per-fuel figures.
Which costs less to run, the DuroMax XP15000HX Dual Fuel or the Generac GP17500E?
Estimated fuel for 24 hours at about 50% load: $84 on gasoline for the DuroMax XP15000HX Dual Fuel vs $123 on gasoline for the Generac GP17500E, at national average prices. These are spec-sheet-derived estimates — the assumptions are on the methodology page, and different fuels make this a cost comparison, not an efficiency ranking.
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.