Firman W03383 vs WEN DF430X
What is the difference?
The Firman W03383 has 3.3 kW of running power, 3.65 kW peak. The WEN DF430X has 3.5 kW of running power, 4.38 kW peak.
The Firman W03383 runs on gasoline, the WEN DF430X is dual-fuel.
The Firman W03383 has a 1.8 gal tank, the WEN DF430X has a 2.9 gal tank.
The Firman W03383 has a 3-year warranty, the WEN DF430X has a 2-year warranty.
Both have 120 V AC output.
Specs side by side
| Firman W03383 | WEN DF430X | |
|---|---|---|
| Running W | 3300 | 3500 |
| Peak W | 3650 | 4375 |
| Fuel | gasoline | dual-fuel |
| Tank (gal) | 1.8 | 2.9 |
| Run time @50 % (h) | — | 8 |
| Noise (dB) | — | — |
| CO shutoff | — | yes |
| Weight (lb) | 901 | — |
| Warranty (yr) | 3 | 2 |
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Specs as read from manufacturer pages on 2026-10-26 / 2026-10-27. 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 DF430X?
The WEN DF430X. More running watts: 3500 W vs 3300 W.
Which has the longer warranty, Firman W03383 or WEN DF430X?
The Firman W03383. Longer warranty: 3 years vs 2 years.