Firman WH03562OF vs WEN GN5602X
What is the difference?
The Firman WH03562OF has 3.5 kW of running power, 4.4 kW peak. The WEN GN5602X has 4.5 kW of running power, 5.6 kW peak.
The Firman WH03562OF is dual-fuel, the WEN GN5602X runs on gasoline.
The Firman WH03562OF has a 6 gal tank, the WEN GN5602X has a 4.3 gal tank.
Both have a 3-year warranty.
Both have 120 V AC output.
Specs side by side
| Firman WH03562OF | WEN GN5602X | |
|---|---|---|
| Running W | 3500 | 4500 |
| Peak W | 4400 | 5600 |
| Fuel | dual-fuel | gasoline |
| Tank (gal) | 6 | 4.3 |
| Run time @50 % (h) | — | 12.5 |
| Noise (dB) | — | — |
| CO shutoff | — | yes |
| Weight (lb) | 119 | — |
| Warranty (yr) | 3 | 3 |
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Specs as read from manufacturer pages on 2026-10-31 / 2026-10-25. 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 WH03562OF or WEN GN5602X?
The WEN GN5602X. More running watts: 4500 W vs 3500 W.