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| Specification | Generac #7951 RS8000E | Powerhorse s12500t |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 8000 W | Winner: Winner: 9500 W |
| Starting watts | 10000 W | Winner: Winner: 12500 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 97 dB |
| Weight | Winner: Winner: 213.8 lbs | 235 lbs |
| Run time @50% load | Winner: Winner: 10.5 h | 9 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 7.5 gal | 6.6 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 30 x 27.1 x 25.7 | 29.3 x 26.7 x 26.4 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | Not available | 5 |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | <23% % |
| Engine | ||
| Engine | 420 cc OHV 4-stroke | 457 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 3 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 8000 W | 9500 W |
| Starting watts | 10000 W | 12500 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 | 10.5 h | 9 h |
| Run time @25% load | Not available | Not available |
| Natural gas | Not available | Not available |
| Running watts | Not available | 7125 W |
| Starting watts | Not available | 9375 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 | Not available | Not available |
| Run time @25% load | Not available | Not available |
| Propane | Not available | Not available |
| Running watts | Not available | 8550 W |
| Starting watts | Not available | 9375 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 | Not available | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | true |
| Compliance | EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | true |
| UPC | 696471075823 | 840321764034 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 8000 | 9500 |
| Running Watts (Propane) | Not available | 8550 |
| Running Watts (Natural Gas) | Not available | 7125 |
| Starting Watts (Gasoline) | 10000 | 12500 |
| Starting Watts (Propane) | Not available | 9375 |
| Starting Watts (Natural Gas) | Not available | 9375 |
| Runtime @ 50% Load (Gasoline) | 10.5 | 9 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R) | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 420 | 457 |
| Engine Oil Type | 10W-30/ SAE30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 10.5 | 9 |
| Safety & compliance | ||
| Overload Protection System | SecurityLow oil and overload protection | Not available |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Mobility Components | Not available | Yes |
| Starting Components | Not available | Recoil, Electric, Remote |
| Fuel Connection Components | Not available | natural gas hose with NPT adapter, propane hose |
| Included Accessories | Oil, battery charger, extension cord, battery, and wheel kit | Funnel, tool kit, key fob, natural gas hose with NPT adapter, propane hose, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | 3 | Not available |
| Part Number | Not available | 6075695 |
| Additional specs | ||
| Summary | The Generac RS8000E is a gasoline powered 8000 watt generator built for serious power demands. With 10000 watt starting capacity, this unit handles high draw appliances and tools simultaneously. Running a central air conditioner, refrigerator, sump pump, and several lights at once sits well within reach. For homeowners facing extended outages or contractors powering a full spread of tools on a job site, the RS8000E functions as a legitimate whole house or whole site backup solution. | The Powerhorse s12500t is a versatile 12,500-watt tri-fuel portable generator equipped with electric start and CO shutdown features, suitable for various power needs. |
