Firman H08051 Dual Fuel 8000W vs Westinghouse WGen12000DF
The Westinghouse WGen12000DF is the more powerful unit: 12,000 running watts against 8,000 — about 33% more capacity for the Westinghouse WGen12000DF.
| Firman H08051 Dual Fuel 8000W | Westinghouse WGen12000DF | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline, propane |
| Running watts (gas / LP for standby) | 8000 W | 12000 W |
| Starting watts (gas) | 10000 W | 15000 W |
| Running watts (propane) | 7250 W | 10800 W |
| Starting watts (propane) | 9050 W | 13500 W |
| Noise level | 74 dBA | — |
| Runtime at 50% load (gas) | 12 h | — |
| Fuel tank | 8 gal | 10.5 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | — | 50 A |
| Outlets | — | 2x 5-20R, L5-30R, L14-30R, 14-50R, 2x USB |
| Start type | electric | remote electric |
| Engine displacement | 439 cc | 713 cc |
| Weight | 212 lb | 352 lb |
Frequently asked questions
Which is more powerful, the Firman H08051 Dual Fuel 8000W or the Westinghouse WGen12000DF?
The Westinghouse WGen12000DF, at 12,000 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.
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.