Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
| Specification | Briggs & Stratton 30728 Storm Responder | Powerhorse s12500t |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 6250 W | Winner: Winner: 9500 W |
| Starting watts | 8500 W | Winner: Winner: 12500 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 97 dB |
| Weight | Winner: Winner: 210 lbs | 235 lbs |
| Run time @50% load | Winner: Winner: 11 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) | 28 x 27 x 28 | 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 | Briggs & Stratton® | 457 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 2 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 6250 W | 9500 W |
| Starting watts | 8500 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 | 11 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 | true | true |
| Compliance | ANSI/PGMA G300-2018 | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | true |
| UPC | 11675307288 | 840321764034 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 6250 | 9500 |
| Running Watts (Propane) | Not available | 8550 |
| Running Watts (Natural Gas) | Not available | 7125 |
| Starting Watts (Gasoline) | 8500 | 12500 |
| Starting Watts (Propane) | Not available | 9375 |
| Starting Watts (Natural Gas) | Not available | 9375 |
| Runtime @ 50% Load (Gasoline) | 11 | 9 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R); 1x 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 | 1850 Series™ OHV Engine | OHV 4-stroke |
| Engine Displacement | 420 | 457 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 11 | 9 |
| Controls & display | ||
| Display Type | StatStation™ Digital Display | Not available |
| Idle Control System | No | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection; CO monitoring | Not available |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Mobility Components | 10" Never Go Flat Wheels | Yes |
| Starting Components | Recoil | Recoil, Electric, Remote |
| Fuel Connection Components | Not available | natural gas hose with NPT adapter, propane hose |
| Documentation | operator's manual or illustrated parts list | Not available |
| Included Accessories | Extension cord and wheel kit | Funnel, tool kit, key fob, natural gas hose with NPT adapter, propane hose, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | 2 | Not available |
| Commercial Warranty | 0.25 | Not available |
| Part Number | 030728 | 6075695 |
| Additional specs | ||
| Summary | The Briggs & Stratton 30728 Storm Responder is a 6250-watt gasoline generator built for homeowners and job sites that need sustained power for essential appliances and tools. With 8500 peak watts, it can start large loads like air compressors and refrigerators that draw high inrush current. The 7.5-gallon fuel tank delivers 11 hours of runtime at half load, meaning users can run the unit through a full workday or overnight without refueling. This is a stationary-leaning portable unit, not a grab-and-go machine. | 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. |