Westinghouse iGen12000DFc
#3 in LargeFull review
A large dual-fuel inverter for whole-home backup with clean power and long run time. Best for homeowners with a transfer switch who want inverter quiet at open-frame output.
Amazon $1,899$1,899
The Westinghouse iGen12000DFc is the better inverter generator overall, rated 4.1 to 3.7. The Westinghouse iGen12000DFc leads on fuel options and run time.
Champion 11000W Wireless Start Inverter
#8 in LargeFull review
A quiet, large inverter for whole-house backup or a 50 A RV when you want enclosed-inverter noise levels. Gas only, so plan fuel storage.
Amazon $1,899$1,899
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Westinghouse iGen12000DFc for fuel options (gasoline or propane vs gasoline only) and run time (19 hours on a tank at 25% load vs 15 hours on a tank at 25% load).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every large inverter generator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Westinghouse iGen12000DFc | Champion 11000W Wireless Start Inverter |
|---|---|---|
| Overall rating | 4.1/5 | 3.7/5 |
| Value 30% | 76 $0.21 per running watt | 76 $0.21 per running watt |
| Quiet 20% | 50 64 dBA at light load, maker rating | 50 64 dBA at light load, maker rating |
| Run time 15% | 93 19 hours on a tank at 25% load | 64 15 hours on a tank at 25% load |
| Fuel options 10% | 70 gasoline or propane | 0 gasoline only |
| CO safety 10% | 100 shuts off when carbon monoxide builds up | 100 shuts off when carbon monoxide builds up |
| Warranty 10% | 50 3-year warranty | 50 3-year warranty |
| Starting 5% | 100 electric start with a remote fob or app | 100 electric start with a remote fob or app |
Specifications
| Westinghouse iGen12000DFc | Champion 11000W Wireless Start Inverter | |
|---|---|---|
| Output | ||
| Gasoline | 9,000 W running, 12,000 W starting | 9,000 W running, 11,000 W starting |
| Propane | 8,100 W running, 11,000 W starting | - |
| Outlets | 2 × 120 V, L14-30 | 4 × 120 V, L14-30 |
| Parallel capable | Yes | No |
| Total harmonic distortion | under 3% | under 3% |
| Price per watt | $0.21 | $0.21 |
| Fuel and run time | ||
| Fuel | Gasoline, propane | Gasoline |
| Tank | 7.9 gal | 6.1 gal |
| Run time (gasoline) | 19 hr at 25% load | 15 hr at 25% load |
| Run time (propane, 20 lb tank) | 9 hr | - |
| Engine | 457 cc | 459 cc |
| Noise and safety | ||
| Rated noise (light load) | 64 dBA | 64 dBA |
| CO shutoff | Yes | Yes |
| CARB compliant | No | - |
| Build | ||
| Starting | Remote, electric and recoil | Remote, electric and recoil |
| App | No | No |
| Wheels | Yes | Yes |
| Dimensions | 30.2 x 25.2 x 26.6 in | 28.3 x 28.8 x 27.5 in |
| Weight | 189 lb | 200 lb |
| Warranty | 3 years | 3 years |