Firman T07571 Tri-Fuel 7500W vs Westinghouse WGen7500DF
Both units carry the same best-fuel running rating: 7,500 W. The Westinghouse WGen7500DF is the quieter of the two (72 dBA vs 74 dBA — though manufacturers measure noise at different loads and distances). The Firman T07571 Tri-Fuel 7500W offers more fuel flexibility (gasoline, propane, natural gas) where the Westinghouse WGen7500DF runs on gasoline and propane.
| Firman T07571 Tri-Fuel 7500W | Westinghouse WGen7500DF | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane, natural-gas | gasoline, propane |
| Running watts (gas / LP for standby) | 7500 W | 7500 W |
| Starting watts (gas) | 9400 W | 9500 W |
| Running watts (propane) | 6750 W | 6750 W |
| Starting watts (propane) | 8450 W | 8550 W |
| Running watts (natural gas) | 5500 W | — |
| Starting watts (natural gas) | 6900 W | — |
| Noise level | 74 dBA | 72 dBA |
| Runtime at 25% load (gas) | 12 h | — |
| Fuel tank | 8 gal | 6.6 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | 30 A | 30 A |
| Start type | electric | remote electric |
| Engine displacement | 439 cc | 420 cc |
| Weight | 213 lb | 201 lb |
Frequently asked questions
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.