WEN DF623X vs Yamaha EF6300iSDE
What is the difference?
The WEN DF623X has 5 kW of running power, 6.25 kW peak. The Yamaha EF6300iSDE has 5.5 kW of running power, 6.3 kW peak.
The WEN DF623X has a 2.9 gal tank, the Yamaha EF6300iSDE has a 4.5 gal tank.
The WEN DF623X has a 2-year warranty, the Yamaha EF6300iSDE has a 3-year warranty.
Specs side by side
| WEN DF623X | Yamaha EF6300iSDE | |
|---|---|---|
| Running W | 5000 | 5500 |
| Peak W | 6250 | 6300 |
| Fuel | dual-fuel | — |
| Tank (gal) | 2.9 | 4.5 |
| Run time @50 % (h) | — | — |
| Noise (dB) | — | — |
| CO shutoff | yes | — |
| Weight (lb) | — | 216 |
| Warranty (yr) | 2 | 3 |
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Specs as read from manufacturer pages on 2026-10-27 / 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, WEN DF623X or Yamaha EF6300iSDE?
The Yamaha EF6300iSDE. More running watts: 5500 W vs 5000 W.
Which has the longer warranty, WEN DF623X or Yamaha EF6300iSDE?
The Yamaha EF6300iSDE. Longer warranty: 3 years vs 2 years.
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