Westinghouse WGen3600cv
#10 in SmallFull review
A low-cost gasoline generator for a travel trailer or a few essentials in an outage. Best for RV owners and light home backup where a 120 V outlet is enough.
Amazon $349$349
The Westinghouse WGen3600cv is the better portable generator overall, rated 3.7 to 3.4. The Westinghouse WGen3600cv leads on value and run time. The Westinghouse WGen3600cv costs $200 less ($349 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 WGen3600cv for value ($0.10 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 WGen3600cv | Generac GP3600 |
|---|---|---|
| Overall rating | 3.7/5 | 3.4/5 |
| Value 30% | 100 $0.10 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% | 0 gasoline only | 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 WGen3600cv | Generac GP3600 | |
|---|---|---|
| Output | ||
| Gasoline | 3,600 W running, 4,650 W starting | 3,600 W running, 4,500 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 | $0.10 | $0.15 |
| Fuel and run time | ||
| Fuel | Gasoline | Gasoline |
| Tank | 4 gal | 3.7 gal |
| Run time (gasoline) | 10.5 hr at 50% load | 9.3 hr at 50% load |
| 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 | 23.3 x 17.5 x 18.7 in | 24 x 22.5 x 21.3 in |
| Weight | 100.6 lb | 105 lb |
| Warranty | 3 years | 3 years |
| Released | 2021-09 | 2023-12 |