A mid-size home-backup inverter for people with a natural gas line or a transfer switch who want unattended starting. It also covers a 30 A RV.
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
The rating comes from 7 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
| Model number | 201535 |
|---|---|
| Output | |
| Gasoline | 5,250 W running, 6,500 W starting |
| Propane | 4,725 W running, 6,500 W starting |
| Natural gas | 4,253 W running |
| Outlets | 4 × 120 V, TT-30 (RV), L14-30 |
| Parallel capable | No |
| Total harmonic distortion | under 3% |
| Price per watt | $0.25 |
| Fuel and run time | |
| Fuel | Gasoline, propane, natural gas |
| Tank | 4.5 gal |
| Run time (gasoline) | 18 hr at 25% load |
| Run time (propane, 20 lb tank) | 16 hr |
| Engine | 224 cc |
| Noise and safety | |
| Rated noise (light load) | 64 dBA |
| CO shutoff | Yes |
| Build | |
| Starting | Remote, electric and recoil |
| App | No |
| Wheels | Yes |
| Dimensions | 25.2 x 20.5 x 22.6 in |
| Weight | 123.5 lb |
| Warranty | 3 years |
A home-backup inverter for people who want to run most of a house, including central air on many systems, through a transfer switch. Long runtime, CO shutoff and a five-year warranty make it good value for its size.
Amazon $1,999A 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 $1,899A tri-fuel home-backup inverter that can sit on natural gas indefinitely. Good for a transfer switch or a 50 A RV.
WEN $1,649Compare the Champion 6500W Tri Fuel Inverter with any other inverter generator →
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