Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.


| Specification | Generac #8251 GP2500i | Westinghouse WGen3600cv |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | No | Yes |
| Running watts | 2200 W | Winner: Winner: 3600 W |
| Starting watts | 2500 W | Winner: Winner: 4650 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 68 dB |
| Weight | Winner: Winner: 48 lbs | 100.6 lbs |
| Run time @50% load | 4.5 h | Winner: Winner: 10.5 h |
| Run time @25% load | 8 h | 14 h |
| Fuel tank | 1 gal | 4 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 19.7 x 11.4 x 17.9 | 23.3 x 17.5 x 18.7 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | 23 % |
| Engine | ||
| Engine | 98 cc OHV 4-stroke | 212 cc Westinghouse OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 2200 W | 3600 W |
| Starting watts | 2500 W | 4650 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 4.5 h | 10.5 h |
| Run time @25% load | 8 h | 14 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Floating |
| UPC | 696471003946 | 850011336731 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 2200 | 3600 |
| Starting Watts (Gasoline) | 2500 | 4650 |
| Runtime @ 50% Load (Gasoline) | 4.5 | 10.5 |
| Runtime @ 25% Load (Gasoline) | 8 | 14 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) | AC outlets1x Duplex 120V 20A (5-20R)1x 120V 30A (L5-30R)1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 98 cc OHV 4-stroke | OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 98 | 212 |
| Cylinder Sleeve | Not available | Cast iron sleeve |
| Engine Oil Type | 10W-30 | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 8 | 14 |
| Runtime @ 50% Load (Gasoline) | 4.5 | 10.5 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Recoil | Oil, funnel, and tool kit |
| Included Accessories | Oil, funnel, tool kit, and battery charging cables | Oil, funnel, and tool kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | 3 |
| Part Number | 82512 | Not available |
| Additional specs | ||
| Summary | The Generac GP2500i is a 2200-watt inverter generator built for portable backup power and recreational use. At 48 pounds, it moves easily between campsites, job sites, and emergency situations. The inverter technology means laptops, phones, and sensitive tools run safely because the power output stays stable. This unit runs on gasoline and delivers 2500 starting watts, so it can handle the initial surge when motors kick on. | The Westinghouse WGen3600cv is a portable gas-powered generator designed for RV use and home backup power. It offers 3,600 running watts and 4,650 peak watts, powered by a 212cc 4-Stroke OHV Westinghouse Engine. The generator features a TT-30R RV outlet, providing up to 14 hours of run time on a 4-gallon fuel tank at 50% load. It includes safety features such as automatic low oil shutdown, automatic voltage regulation, overload protection, and a carbon monoxide (CO) sensor with automatic shutdown. |