Firman W03383 vs WEN 56455i
What is the difference?
The Firman W03383 has 3.3 kW of running power, 3.65 kW peak. The WEN 56455i 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 56455i has a 2.2 gal tank.
The Firman W03383 has a 3-year warranty, the WEN 56455i has a 2-year warranty.
Both have 120 V AC output.
Specs side by side
| Firman W03383 | WEN 56455i | |
|---|---|---|
| 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) | — | 57 |
| CO shutoff | — | — |
| Weight (lb) | 901 | — |
| Warranty (yr) | 3 | 2 |
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Specs as read from manufacturer pages on 2026-10-26 / 2026-10-26. 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 56455i?
The WEN 56455i. More running watts: 3500 W vs 3300 W.
Which has the longer warranty, Firman W03383 or WEN 56455i?
The Firman W03383. Longer warranty: 3 years vs 2 years.