Firman T07571 Tri-Fuel 7500W vs Westinghouse WGen5300s
The Firman T07571 Tri-Fuel 7500W is the more powerful unit: 7,500 running watts against 5,300 — about 29% more capacity for the Firman T07571 Tri-Fuel 7500W. The Westinghouse WGen5300s is the quieter of the two (68 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 WGen5300s runs on gasoline.
| Firman T07571 Tri-Fuel 7500W | Westinghouse WGen5300s | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane, natural-gas | gasoline |
| Running watts (gas / LP for standby) | 7500 W | 5300 W |
| Starting watts (gas) | 9400 W | 6600 W |
| Running watts (propane) | 6750 W | — |
| Starting watts (propane) | 8450 W | — |
| Running watts (natural gas) | 5500 W | — |
| Starting watts (natural gas) | 6900 W | — |
| Noise level | 74 dBA | 68 dBA |
| Runtime at 50% load (gas) | — | 11 h |
| Runtime at 25% load (gas) | 12 h | 14.5 h |
| Fuel tank | 8 gal | 4.7 gal |
| Output voltage | 120/240V | — |
| Transfer-switch-ready outlet | 30 A | 30 A |
| Start type | electric | electric |
| Engine displacement | 439 cc | 274 cc |
| Weight | 213 lb | 131.4 lb |
Frequently asked questions
Which is more powerful, the Firman T07571 Tri-Fuel 7500W or the Westinghouse WGen5300s?
The Firman T07571 Tri-Fuel 7500W, at 7,500 running watts on its best fuel versus 5,300 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.