A simple open-frame inverter for RVs and outage backup with certified low-CO safety. Enclosed rivals are quieter for similar money.
Ryobi $889The Ryobi RYi4022X and the A-iPower SUA4300iD are evenly matched, rated 3.6 and 3.5. The Ryobi RYi4022X leads on run time. The A-iPower SUA4300iD wins on fuel options and value. The A-iPower SUA4300iD costs $289.01 less ($599.99 vs $889).
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 $599.99Prices 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 Ryobi RYi4022X for run time (15.8 hours on a tank at 25% load (scaled from 50%) vs 7.5 hours on a tank at 25% load).
- Choose the A-iPower SUA4300iD for fuel options (gasoline or propane vs gasoline only) and value ($0.17 per running watt vs $0.26 per running watt).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every mid-size inverter generator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Ryobi RYi4022X | A-iPower SUA4300iD |
|---|---|---|
| Overall rating | 3.6/5 | 3.5/5 |
| Value 30% | 72 $0.26 per running watt | 94 $0.17 per running watt |
| Quiet 20% | 50 noise level not published (neutral score used) | 19 63 dBA at light load, maker rating |
| Run time 15% | 82 15.8 hours on a tank at 25% load (scaled from 50%) | 12 7.5 hours on a tank at 25% load |
| Fuel options 10% | 0 gasoline only | 70 gasoline or propane |
| 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% | 0 pull start only | 50 starting method not stated (neutral score used) |
Specifications
| Ryobi RYi4022X | A-iPower SUA4300iD | |
|---|---|---|
| Output | ||
| Gasoline | 3,400 W running, 4,000 W starting | 3,450 W running, 4,300 W starting |
| Propane | - | 3,100 W running, 3,900 W starting |
| Outlets | 4 × 120 V, TT-30 (RV) | 2 × 120 V, L5-30 |
| Total harmonic distortion | - | under 3% |
| Price per watt | $0.26 | $0.17 |
| Fuel and run time | ||
| Fuel | Gasoline | Gasoline, propane |
| Tank | 3.2 gal | 1.6 gal |
| Run time (gasoline) | 12 hr at 50% load | 7.5 hr at 25% load |
| Engine | 212 cc | 149 cc |
| Noise and safety | ||
| Rated noise (light load) | - | 63 dBA |
| CO shutoff | Yes | Yes |
| Build | ||
| Starting | Recoil (pull) | - |
| App | - | No |
| Wheels | Yes | Yes |
| Dimensions | - | 19.7 x 12.2 x 18.5 in |
| Weight | 85 lb | 54.8 lb |
| Warranty | 3 years | 3 years |
