Firman WH03562OF vs WEN DF475T
What is the difference?
The Firman WH03562OF has 3.5 kW of running power, 4.4 kW peak. The WEN DF475T has 3.8 kW of running power, 4.75 kW peak.
Both are dual-fuel.
The Firman WH03562OF has a 6 gal tank, the WEN DF475T has a 4 gal tank.
The Firman WH03562OF has a 3-year warranty, the WEN DF475T has a 2-year warranty.
The Firman WH03562OF has 120 V AC output, the WEN DF475T 120/240 V. Only 240 V output can run 240 V loads such as many well pumps, dryers and central AC.
Specs side by side
| Firman WH03562OF | WEN DF475T | |
|---|---|---|
| Running W | 3500 | 3800 |
| Peak W | 4400 | 4750 |
| Fuel | dual-fuel | dual-fuel |
| Tank (gal) | 6 | 4 |
| Run time @50 % (h) | — | 11 |
| Noise (dB) | — | — |
| CO shutoff | — | — |
| Weight (lb) | 119 | — |
| Warranty (yr) | 3 | 2 |
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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 DF475T?
The WEN DF475T. More running watts: 3800 W vs 3500 W.
Which has the longer warranty, Firman WH03562OF or WEN DF475T?
The Firman WH03562OF. Longer warranty: 3 years vs 2 years.
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