DuroMax XP12000EH Dual Fuel vs WEN DF1100T Dual Fuel 11000W

The DuroMax XP12000EH Dual Fuel is the more powerful unit: 9,500 running watts against 8,300 — about 13% more capacity for the DuroMax XP12000EH Dual Fuel. The WEN DF1100T Dual Fuel 11000W runs longer at half load — 8.5 hours on its 6.6-gallon tank vs 8 hours.

DuroMax XP12000EH Dual Fuel WEN DF1100T Dual Fuel 11000W
Type portable portable
Fuel gasoline, propane gasoline, propane
Running watts (gas / LP for standby) 9500 W 8300 W
Starting watts (gas) 12000 W 11000 W
Running watts (propane) 9025 W 7500 W
Starting watts (propane) 11400 W 9500 W
Runtime at 50% load (gas) 8 h 8.5 h
Fuel tank 8.3 gal 6.6 gal
Output voltage 120/240V 120/240V
Transfer-switch-ready outlet 50 A 50 A
Outlets 4x 120V GFCI 5-20R, L5-30R, NEMA 14-50R, 12V DC
Start type electric electric
Engine displacement 457 cc 457 cc
Weight 224 lb 213.8 lb
Warranty 2 yr

Frequently asked questions

Which is more powerful, the DuroMax XP12000EH Dual Fuel or the WEN DF1100T Dual Fuel 11000W?

The DuroMax XP12000EH Dual Fuel, at 9,500 running watts on its best fuel versus 8,300 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 XP12000EH Dual Fuel or the WEN DF1100T Dual Fuel 11000W?

Estimated fuel for 24 hours at about 50% load: $80 on gasoline for the DuroMax XP12000EH Dual Fuel vs $60 on gasoline for the WEN DF1100T Dual Fuel 11000W, 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.