Firman H08051 Dual Fuel 8000W vs WEN DF1100T Dual Fuel 11000W
The WEN DF1100T Dual Fuel 11000W is the more powerful unit: 8,300 running watts against 8,000 — about 4% more capacity for the WEN DF1100T Dual Fuel 11000W. The Firman H08051 Dual Fuel 8000W runs longer at half load — 12 hours on its 8-gallon tank vs 8.5 hours.
| Firman H08051 Dual Fuel 8000W | WEN DF1100T Dual Fuel 11000W | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline, propane |
| Running watts (gas / LP for standby) | 8000 W | 8300 W |
| Starting watts (gas) | 10000 W | 11000 W |
| Running watts (propane) | 7250 W | 7500 W |
| Starting watts (propane) | 9050 W | 9500 W |
| Noise level | 74 dBA | — |
| Runtime at 50% load (gas) | 12 h | 8.5 h |
| Fuel tank | 8 gal | 6.6 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | — | 50 A |
| Outlets | — | 4x 120V GFCI 5-20R, L5-30R, NEMA 14-50R, 12V DC |
| Start type | electric | electric |
| Engine displacement | 439 cc | 457 cc |
| Weight | 212 lb | 213.8 lb |
| Warranty | — | 2 yr |
Frequently asked questions
Which is more powerful, the Firman H08051 Dual Fuel 8000W or the WEN DF1100T Dual Fuel 11000W?
The WEN DF1100T Dual Fuel 11000W, at 8,300 running watts on its best fuel versus 8,000 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 Firman H08051 Dual Fuel 8000W or the WEN DF1100T Dual Fuel 11000W?
Estimated fuel for 24 hours at about 50% load: $51 on gasoline for the Firman H08051 Dual Fuel 8000W 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.