Champion 4750-Watt Dual Fuel CARB
#5 in SmallFull review
A small dual-fuel generator for RV owners and California buyers who need a CARB-compliant model. It covers a 30 A RV or a fridge and a few circuits in an outage.
Amazon $699$699
The Champion 4750-Watt Dual Fuel CARB and the WEN DF475T are evenly matched, rated 4.0 and 4.0. The Champion 4750-Watt Dual Fuel CARB leads on CO safety, run time and warranty. The WEN DF475T wins on home hookup and value. The WEN DF475T costs $234.01 less ($464.99 vs $699).
WEN DF475T
#7 in SmallFull review
A small, cheap dual-fuel generator for running a fridge, sump pump and lights through a 30 A transfer switch, if you can live without CO shutoff.
Amazon $464.99$464.99
Prices were last checked October 28, 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 4750-Watt Dual Fuel CARB for CO safety (shuts off when carbon monoxide builds up vs no CO shutoff), run time (14 hours on a tank at 50% load vs 11 hours on a tank at 50% load) and warranty (3-year warranty vs 2-year warranty).
- Choose the WEN DF475T for home hookup (240 V outlet for a transfer switch vs 120 V 30 A outlet only (no 240 V)) and value ($0.12 per running watt vs $0.18 per running watt).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every small portable generator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Champion 4750-Watt Dual Fuel CARB | WEN DF475T |
|---|---|---|
| Overall rating | 4.0/5 | 4.0/5 |
| Value 30% | 66 $0.18 per running watt | 91 $0.12 per running watt |
| Run time 15% | 100 14 hours on a tank at 50% load | 70 11 hours on a tank at 50% load |
| Fuel options 15% | 70 gasoline or propane | 70 gasoline or propane |
| Home hookup 15% | 40 120 V 30 A outlet only (no 240 V) | 100 240 V outlet for a transfer switch |
| CO safety 10% | 100 shuts off when carbon monoxide builds up | 0 no CO shutoff |
| Warranty 10% | 67 3-year warranty | 33 2-year warranty |
| Starting 5% | 80 push-button electric start | 80 push-button electric start |
Specifications
| Champion 4750-Watt Dual Fuel CARB | WEN DF475T | |
|---|---|---|
| Output | ||
| Gasoline | 3,800 W running, 4,750 W starting | 3,800 W running, 4,750 W starting |
| Propane | 3,420 W running, 4,275 W starting | 3,500 W running, 4,350 W starting |
| Outlets | 2 × 120 V, TT-30 (RV), L5-30 | 2 × 120 V, L14-30 |
| Transfer switch ready | 120 V only (L5-30) | Yes, 240 V |
| Full power at 120 V | No | Yes |
| Price per watt | $0.18 | $0.12 |
| Fuel and run time | ||
| Fuel | Gasoline, propane | Gasoline, propane |
| Tank | 4.7 gal | 4 gal |
| Run time (gasoline) | 14 hr at 50% load | 11 hr at 50% load |
| Run time (propane, 20 lb tank) | 10.5 hr | 7 hr |
| Engine | 224 cc | 224 cc |
| Noise and safety | ||
| Rated noise | 68 dBA | - |
| CO shutoff | Yes | No |
| CARB compliant | Yes | Yes |
| Build | ||
| Starting | Electric and recoil | Electric and recoil |
| Wheels | Yes | Yes |
| Dimensions | 24.7 x 25 x 22.2 in | 23.2 x 17.5 x 18.5 in |
| Weight | 133 lb | 105.8 lb |
| Warranty | 3 years | 2 years |
| Released | 2025-12 | 2018-12 |