Generac GP8000E COsense vs Westinghouse WGen6000

The Generac GP8000E COsense is the more powerful unit: 8,000 running watts against 6,000 — about 25% more capacity for the Generac GP8000E COsense.

Generac GP8000E COsense Westinghouse WGen6000
Type portable portable
Fuel gasoline gasoline
Running watts (gas / LP for standby) 8000 W 6000 W
Starting watts (gas) 10000 W 7500 W
Noise level 72 dBA
Runtime at 50% load (gas) 10 h
Fuel tank 7.9 gal 6.6 gal
Output voltage 120/240V 120/240V
Transfer-switch-ready outlet 30 A 30 A
Start type electric electric
CO safety shutoff Yes
Engine displacement 420 cc 420 cc
Weight 198 lb 174 lb

Frequently asked questions

Which is more powerful, the Generac GP8000E COsense or the Westinghouse WGen6000?

The Generac GP8000E COsense, at 8,000 running watts on its best fuel versus 6,000 W. Remember that dual-fuel and natural-gas ratings are lower than gasoline ratings — the comparison table shows the published per-fuel figures.

Where do these specifications come from?

Every record on BackupAtlas is hand-curated from manufacturer documentation and spec sheets, and each generator page links to its source document.