Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
| Specification | Briggs & Stratton 30761 Q6500 QuietPower | Firman H03655 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Dual-Fuel |
| Inverter | Yes | No |
| Parallel capable | No | No |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 5000 W | 3650 W |
| Starting watts | Winner: Winner: 6500 W | 4550 W |
| Noise (lower limit) | Winner: Winner: 66 dB | 67 dB |
| Weight | 139 lbs | Winner: Winner: 112 lbs |
| Run time @50% load | 10 h | Winner: Winner: 14 h |
| Run time @25% load | 14 h | Not available |
| Fuel tank | 5 gal | 5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 24.8 x 21.2 x 21.5 | 25.7 x 21.8 x 21.6 |
| Electrical | ||
| Voltage (AC) | 120/240V 60 Hz | 120V 60 Hz |
| Voltage (DC) | 5V | Not available |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | 25 % |
| Engine | ||
| Engine | Briggs & Stratton OHV 4-stroke 306 cc | 208 cc OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 2 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 5000 W | 3650 W |
| Starting watts | 6500 W | 4550 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 h | 14 h |
| Run time @25% load | 14 h | Not available |
| Propane | Not available | Not available |
| Running watts | Not available | 3300 W |
| Starting watts | Not available | 4100 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 | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Bonded to frame | Floating |
| UPC | 11675307615 | 840876136553 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 5000 | 3650 |
| Running Watts (Propane) | Not available | 3300 |
| Starting Watts (Gasoline) | 6500 | 4550 |
| Starting Watts (Propane) | Not available | 4100 |
| Runtime @ 50% Load (Gasoline) | 10 | 14 |
| Runtime @ 25% Load (Gasoline) | 14 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R) | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 208 cc OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 306 | 208 |
| Cylinder Sleeve | Not available | cast iron sleeve |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 14 | Not available |
| Runtime @ 50% Load (Gasoline) | 10 | 14 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Oil and funnel | Oil, funnel, tool kit, propane hose, and wheel kit |
| Included Accessories | Oil and funnel | Oil, funnel, tool kit, propane hose, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | Not available | 3 |
| Commercial Warranty | 2 | 3 |
| Part Number | 30761 | Not available |
| Additional specs | ||
| Summary | The Briggs & Stratton 30761 Q6500 QuietPower is a 5,000-watt inverter generator built for homeowners and outdoor users who need extended runtime without excessive noise. With 6,500 peak watts, this unit can start larger appliances like refrigerators and air conditioning units, then sustain 5,000 watts of continuous power for essential household devices, tools, and camping equipment. The inverter technology keeps total harmonic distortion below 3%, meaning laptops, phones, and televisions stay protected from power surges that would damage their circuits.
At 66 decibels, the Q6500 operates quietly enough for residential neighborhoods and campgrounds where noise restrictions matter. The 5-gallon fuel tank stretches to 14 hours of runtime at 25% load, reducing refueling interruptions during extended outages or weekend trips. This combination positions the unit as a middle-ground option: more power than portable inverters, quieter than traditional open-frame generators, and practical for users who prioritize both output and operational peace. | The Firman H03655 is a 3,650-watt dual-fuel generator built around a 208 cc OHV 4-stroke engine with a cast iron sleeve. Running on gasoline, it delivers 4,550 starting watts and 3,650 running watts. Switch to propane and output drops to 4,100 starting watts and 3,300 running watts. This power level runs a refrigerator, microwave, window air conditioner, or multiple power tools simultaneously. The dual-fuel flexibility means you can operate on whichever fuel is available, a practical advantage during extended outages or when propane storage is more convenient than gasoline.
At 67 dB at quarter load, the H03655 operates quietly enough for residential neighborhoods without disturbing neighbors. The 5-gallon tank delivers 14 hours of runtime at 50 percent load on gasoline, translating to roughly one full day of moderate use before refueling. The RV-ready configuration and included wheel kit position this unit as a go-anywhere power source for camping, job sites, and home backup scenarios. |