Champion 4000W DH Open-Frame Inverter (100302) vs Generac iQ3500
The Champion 4000W DH Open-Frame Inverter (100302) is the more powerful unit: 3,500 running watts against 3,000 — about 14% more capacity for the Champion 4000W DH Open-Frame Inverter (100302).
| Champion 4000W DH Open-Frame Inverter (100302) | Generac iQ3500 | |
|---|---|---|
| Type | inverter | inverter |
| Fuel | gasoline | gasoline |
| Running watts (gas / LP for standby) | 3500 W | 3000 W |
| Starting watts (gas) | 4000 W | 3500 W |
| Noise level | 64 dBA | — |
| Runtime at 25% load (gas) | 17 h | — |
| Fuel tank | 2.9 gal | 2.6 gal |
| Output voltage | 120V | 120V |
| Start type | recoil | electric |
| Parallel capable | — | Yes |
| Engine displacement | 224 cc | 212 cc |
| Weight | 81.5 lb | 109.1 lb |
Frequently asked questions
Which is more powerful, the Champion 4000W DH Open-Frame Inverter (100302) or the Generac iQ3500?
The Champion 4000W DH Open-Frame Inverter (100302), at 3,500 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.