DuroMax XP5500EH Dual Fuel vs Westinghouse WGen3600DF
The DuroMax XP5500EH Dual Fuel is the more powerful unit: 4,500 running watts against 3,600 — about 20% more capacity for the DuroMax XP5500EH Dual Fuel. The Westinghouse WGen3600DF runs longer at half load — 10.5 hours on its 4-gallon tank vs 9 hours.
| DuroMax XP5500EH Dual Fuel | Westinghouse WGen3600DF | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline, propane |
| Running watts (gas / LP for standby) | 4500 W | 3600 W |
| Starting watts (gas) | 5500 W | 4650 W |
| Running watts (propane) | 4275 W | 3240 W |
| Starting watts (propane) | 5225 W | 4180 W |
| Noise level | — | 68 dBA |
| Runtime at 50% load (gas) | 9 h | 10.5 h |
| Runtime at 25% load (gas) | — | 14 h |
| Fuel tank | 4 gal | 4 gal |
| Output voltage | 120/240V | 120V |
| Start type | electric | electric |
| Engine displacement | 224 cc | 212 cc |
| Weight | 124 lb | 120 lb |
Frequently asked questions
Which is more powerful, the DuroMax XP5500EH Dual Fuel or the Westinghouse WGen3600DF?
The DuroMax XP5500EH Dual Fuel, at 4,500 running watts on its best fuel versus 3,600 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 XP5500EH Dual Fuel or the Westinghouse WGen3600DF?
Estimated fuel for 24 hours at about 50% load: $34 on gasoline for the DuroMax XP5500EH Dual Fuel vs $29 on gasoline for the Westinghouse WGen3600DF, 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.