Generac iQ3500 vs Westinghouse iGen4500DF Dual Fuel
The Westinghouse iGen4500DF Dual Fuel is the more powerful unit: 3,700 running watts against 3,000 — about 19% more capacity for the Westinghouse iGen4500DF Dual Fuel. The Westinghouse iGen4500DF Dual Fuel offers more fuel flexibility (gasoline, propane) where the Generac iQ3500 runs on gasoline.
| Generac iQ3500 | Westinghouse iGen4500DF Dual Fuel | |
|---|---|---|
| Type | inverter | inverter |
| Fuel | gasoline | gasoline, propane |
| Running watts (gas / LP for standby) | 3000 W | 3700 W |
| Starting watts (gas) | 3500 W | 4500 W |
| Running watts (propane) | — | 3330 W |
| Starting watts (propane) | — | 4050 W |
| Noise level | — | 52 dBA |
| Runtime at 25% load (gas) | — | 18 h |
| Fuel tank | 2.6 gal | 3.4 gal |
| Output voltage | 120V | 120V |
| Start type | electric | remote electric |
| Parallel capable | Yes | — |
| Engine displacement | 212 cc | — |
| Weight | 109.1 lb | 98 lb |
Frequently asked questions
Which is more powerful, the Generac iQ3500 or the Westinghouse iGen4500DF Dual Fuel?
The Westinghouse iGen4500DF Dual Fuel, at 3,700 running watts on its best fuel versus 3,000 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.