Pulsar GD400BN vs WEN DF451i
What is the difference?
The Pulsar GD400BN has 3.2 kW of running power, 4 kW peak. The WEN DF451i has 3.5 kW of running power, 4.5 kW peak.
Both are dual-fuel.
The Pulsar GD400BN runs 4.5 h at half load, the WEN DF451i runs 8.5 h at half load. The WEN DF451i runs longer on a tank.
The Pulsar GD400BN has a 1 gal tank, the WEN DF451i has a 2.2 gal tank.
Both have 120 V AC output.
Specs side by side
| Pulsar GD400BN | WEN DF451i | |
|---|---|---|
| Running W | 3200 | 3500 |
| Peak W | 4000 | 4500 |
| Fuel | dual-fuel | dual-fuel |
| Tank (gal) | 1 | 2.2 |
| Run time @50 % (h) | 4.5 | 8.5 |
| Noise (dB) | — | 58 |
| CO shutoff | yes | — |
| Weight (lb) | 47 | — |
| Warranty (yr) | — | 3 |
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Specs as read from manufacturer pages on 2026-10-26 / 2026-10-27. 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, Pulsar GD400BN or WEN DF451i?
The WEN DF451i. More running watts: 3500 W vs 3200 W.