Westinghouse WGen3600DFcv
#6 in SmallFull review
A small dual-fuel generator for an RV or a fridge, lights and a sump pump in an outage. Good for buyers who want to store propane instead of gasoline.
Amazon $399$399
The Westinghouse WGen3600DFcv is the better portable generator overall, rated 4.0 to 3.4. The Westinghouse WGen3600DFcv leads on fuel options, value and run time. The Westinghouse WGen3600DFcv costs $150 less ($399 vs $549).
Generac GP3600
#12 in SmallFull review
A small gasoline generator for a fridge, a freezer, lights and a sump pump in an outage, or tools on a job site. Pick it for low cost and easy handling, not for whole-house backup.
Amazon $549$549
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 Westinghouse WGen3600DFcv for fuel options (gasoline or propane vs gasoline only), value ($0.11 per running watt vs $0.15 per running watt) and run time (10.5 hours on a tank at 50% load vs 9.3 hours on a tank at 50% load).
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 | Westinghouse WGen3600DFcv | Generac GP3600 |
|---|---|---|
| Overall rating | 4.0/5 | 3.4/5 |
| Value 30% | 96 $0.11 per running watt | 79 $0.15 per running watt |
| Run time 15% | 65 10.5 hours on a tank at 50% load | 53 9.3 hours on a tank at 50% load |
| Fuel options 15% | 70 gasoline or propane | 0 gasoline only |
| Home hookup 15% | 40 120 V 30 A outlet only (no 240 V) | 40 120 V 30 A outlet only (no 240 V) |
| CO safety 10% | 100 shuts off when carbon monoxide builds up | 100 shuts off when carbon monoxide builds up |
| Warranty 10% | 67 3-year warranty | 67 3-year warranty |
| Starting 5% | 0 pull start only | 0 pull start only |
Specifications
| Westinghouse WGen3600DFcv | Generac GP3600 | |
|---|---|---|
| Output | ||
| Gasoline | 3,600 W running, 4,650 W starting | 3,600 W running, 4,500 W starting |
| Propane | 3,240 W running, 4,180 W starting | - |
| Outlets | 2 × 120 V, TT-30 (RV), L5-30 | 4 × 120 V, L5-30 |
| Transfer switch ready | 120 V only (L5-30) | 120 V only (L5-30) |
| Full power at 120 V | - | No |
| Total harmonic distortion | under 23% | - |
| Price per watt | $0.11 | $0.15 |
| Fuel and run time | ||
| Fuel | Gasoline, propane | Gasoline |
| Tank | 4 gal | 3.7 gal |
| Run time (gasoline) | 10.5 hr at 50% load | 9.3 hr at 50% load |
| Run time (propane, 20 lb tank) | 14 hr | - |
| Engine | 212 cc | 212 cc |
| Noise and safety | ||
| Rated noise | 68 dBA | - |
| CO shutoff | Yes | Yes |
| CARB compliant | No | No |
| Build | ||
| Starting | Recoil (pull) | Recoil (pull) |
| Wheels | No | Yes |
| Dimensions | 23.5 x 18.5 x 18.9 in | 24 x 22.5 x 21.3 in |
| Weight | 104.7 lb | 105 lb |
| Warranty | 3 years | 3 years |
| Released | 2022-05 | 2023-12 |