Champion 7000W Dual Fuel (100155) vs Firman T07571 Tri-Fuel 7500W
The Firman T07571 Tri-Fuel 7500W is the more powerful unit: 7,500 running watts against 7,000 — about 7% more capacity for the Firman T07571 Tri-Fuel 7500W. The Firman T07571 Tri-Fuel 7500W offers more fuel flexibility (gasoline, propane, natural gas) where the Champion 7000W Dual Fuel (100155) runs on gasoline and propane.
| Champion 7000W Dual Fuel (100155) | Firman T07571 Tri-Fuel 7500W | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline, propane, natural-gas |
| Running watts (gas / LP for standby) | 7000 W | 7500 W |
| Starting watts (gas) | 9000 W | 9400 W |
| Running watts (propane) | 6300 W | 6750 W |
| Starting watts (propane) | 8100 W | 8450 W |
| Running watts (natural gas) | — | 5500 W |
| Starting watts (natural gas) | — | 6900 W |
| Noise level | — | 74 dBA |
| Runtime at 25% load (gas) | — | 12 h |
| Fuel tank | 6.1 gal | 8 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | — | 30 A |
| Start type | electric | electric |
| Engine displacement | 439 cc | 439 cc |
| Weight | 202.4 lb | 213 lb |
Frequently asked questions
Which is more powerful, the Champion 7000W Dual Fuel (100155) or the Firman T07571 Tri-Fuel 7500W?
The Firman T07571 Tri-Fuel 7500W, at 7,500 running watts on its best fuel versus 7,000 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.