Firman W01781 vs WEN DF250iX
What is the difference?
The Firman W01781 has 1.7 kW of running power, 2.1 kW peak. The WEN DF250iX has 2 kW of running power, 2.5 kW peak.
The Firman W01781 runs on gasoline, the WEN DF250iX is dual-fuel.
The Firman W01781 runs 9 h at half load, the WEN DF250iX runs 6 h at half load. The Firman W01781 runs longer on a tank.
Both have 120 V AC output.
Specs side by side
| Firman W01781 | WEN DF250iX | |
|---|---|---|
| Running W | 1700 | 2000 |
| Peak W | 2100 | 2500 |
| Fuel | gasoline | dual-fuel |
| Tank (gal) | 0.9 | — |
| Run time @50 % (h) | 9 | 6 |
| Noise (dB) | 59 | — |
| CO shutoff | — | yes |
| Weight (lb) | 46 | — |
| Warranty (yr) | 3 | — |
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Specs as read from manufacturer pages on 2026-10-30 / 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 W01781 or WEN DF250iX?
The WEN DF250iX. More running watts: 2000 W vs 1700 W.
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