Champion 10000W Tri Fuel Open Frame
#7 in LargeFull review
A big, low-cost-per-watt open-frame inverter for whole-house backup on gas, propane or natural gas. Too loud for campgrounds.
Amazon $1,398.82$1,398.82
The Champion 10000W Tri Fuel Open Frame and the Champion 11000W Wireless Start Inverter are evenly matched, rated 3.7 and 3.7. The Champion 10000W Tri Fuel Open Frame leads on fuel options and value. The Champion 11000W Wireless Start Inverter wins on starting. The Champion 10000W Tri Fuel Open Frame costs $500.18 less ($1,398.82 vs $1,899).
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 Champion 10000W Tri Fuel Open Frame for fuel options (gasoline, propane or natural gas vs gasoline only) and value ($0.18 per running watt vs $0.21 per running watt).
- Choose the Champion 11000W Wireless Start Inverter for starting (electric start with a remote fob or app vs push-button electric start).
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 | Champion 10000W Tri Fuel Open Frame | Champion 11000W Wireless Start Inverter |
|---|---|---|
| Overall rating | 3.7/5 | 3.7/5 |
| Value 30% | 84 $0.18 per running watt | 76 $0.21 per running watt |
| Quiet 20% | 0 72 dBA at light load, maker rating | 50 64 dBA at light load, maker rating |
| Run time 15% | 64 15 hours on a tank at 25% load | 64 15 hours on a tank at 25% load |
| Fuel options 10% | 100 gasoline, propane or natural gas | 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% | 80 push-button electric start | 100 electric start with a remote fob or app |
Specifications
| Champion 10000W Tri Fuel Open Frame | Champion 11000W Wireless Start Inverter | |
|---|---|---|
| Output | ||
| Gasoline | 7,750 W running, 10,000 W starting | 9,000 W running, 11,000 W starting |
| Propane | 6,975 W running, 10,000 W starting | - |
| Natural gas | 6,278 W running | - |
| Outlets | 4 × 120 V, L14-30 | 4 × 120 V, L14-30 |
| Parallel capable | No | No |
| Total harmonic distortion | under 3% | under 3% |
| Price per watt | $0.18 | $0.21 |
| Fuel and run time | ||
| Fuel | Gasoline, propane, natural gas | Gasoline |
| Tank | 7.5 gal | 6.1 gal |
| Run time (gasoline) | 15 hr at 25% load | 15 hr at 25% load |
| Run time (propane, 20 lb tank) | 8 hr | - |
| Engine | 459 cc | 459 cc |
| Noise and safety | ||
| Rated noise (light load) | 72 dBA | 64 dBA |
| CO shutoff | Yes | Yes |
| Build | ||
| Starting | Electric and recoil | Remote, electric and recoil |
| App | No | No |
| Wheels | Yes | Yes |
| Dimensions | 27.1 x 28 x 26.2 in | 28.3 x 28.8 x 27.5 in |
| Weight | 180.8 lb | 200 lb |
| Warranty | 3 years | 3 years |