Firman W03383 vs WEN 56450iX
What is the difference?
The Firman W03383 has 3.3 kW of running power, 3.65 kW peak. The WEN 56450iX has 3.5 kW of running power, 4.5 kW peak.
Both run on gasoline.
The Firman W03383 has a 1.8 gal tank, the WEN 56450iX has a 2.2 gal tank.
Both have a 3-year warranty.
Both have 120 V AC output.
Specs side by side
| Firman W03383 | WEN 56450iX | |
|---|---|---|
| Running W | 3300 | 3500 |
| Peak W | 3650 | 4500 |
| Fuel | gasoline | gasoline |
| Tank (gal) | 1.8 | 2.2 |
| Run time @50 % (h) | — | 8.5 |
| Noise (dB) | — | 58 |
| CO shutoff | — | yes |
| Weight (lb) | 901 | — |
| Warranty (yr) | 3 | 3 |
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Specs as read from manufacturer pages on 2026-10-26 / 2026-10-28. Specs one maker does not list are left out of the comparison. Sponsored links; we may earn a commission.
Common questions
Which has more running watts, Firman W03383 or WEN 56450iX?
The WEN 56450iX. More running watts: 3500 W vs 3300 W.