A compact dual-fuel inverter for small RVs and basic home backup at a low price per watt. It can just about run a small RV air conditioner, but don’t expect much else alongside it.
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 | 201050 |
|---|---|
| Output | |
| Gasoline | 3,000 W running, 4,000 W starting |
| Propane | 2,700 W running, 4,000 W starting |
| Outlets | 2 × 120 V, TT-30 (RV) |
| Parallel capable | Yes |
| Total harmonic distortion | under 3% |
| Price per watt | $0.24 |
| Fuel and run time | |
| Fuel | Gasoline, propane |
| Tank | 1.5 gal |
| Run time (gasoline) | 10 hr at 25% load |
| Run time (propane, 20 lb tank) | 25 hr |
| Engine | 149 cc |
| Noise and safety | |
| Rated noise (light load) | 64 dBA |
| CO shutoff | Yes |
| Build | |
| Starting | Recoil (pull) |
| App | No |
| Wheels | No |
| Dimensions | 17.9 x 11.7 x 19.7 in |
| Weight | 51.8 lb |
| Warranty | 3 years |
An affordable dual-fuel inverter for RV owners and light home backup that needs to run an air conditioner or fridge on either fuel. Wheels and CO shutoff make it easy to live with.
Amazon $649.99 A-iPower $599.99A quiet mid-size gas inverter for RV owners who want to start it from inside the camper. Strong overnight run time on one tank.
Amazon $900A low-cost way to run a 30 A camper with one air conditioner, with electric start and CO shutoff. Expect to buy an extended warranty if you want long-term cover.
Harbor Freight $799.99Compare the Champion 4000W Dual Fuel Inverter with any other inverter generator →
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