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| Specification | Firman W03661OF | Ryobi RYi4022X |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | No |
| RV ready | Yes | Yes |
| Running watts | Winner: Winner: 3650 W | 3400 W |
| Starting watts | Winner: Winner: 4500 W | 4000 W |
| Noise (lower limit) | Winner: Winner: 69 dB | 72 dB |
| Weight | 106 lbs | Winner: Winner: 85 lbs |
| Run time @50% load | Not available | Winner: Winner: 12 h |
| Run time @25% load | 25 h | Not available |
| Fuel tank | 6 gal | Not available |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 24.5 x 24.1 x 23 | 25 x 15.88 x 21.75 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | Not available |
| Engine | ||
| Engine | 208 cc OHV 4-stroke, cast iron sleeve. | 212 cc Ryobi OHV 4-stroke |
| 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 | 3650 W | 3400 W |
| Starting watts | 4500 W | 4000 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 | 12 h |
| Run time @25% load | 25 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | CARB |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Floating | Floating |
| UPC | 840876136614 | 46396024183 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3650 | 3400 |
| Starting Watts (Gasoline) | 4500 | 4000 |
| Runtime @ 50% Load (Gasoline) | Not available | 12 |
| Runtime @ 25% Load (Gasoline) | 25 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120V 50A (14-50R) | 2x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Ryobi OHV 4-stroke |
| Engine Displacement | 208 | 212 |
| Cylinder Sleeve | Cast iron sleeve | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 25 | Not available |
| Runtime @ 50% Load (Gasoline) | Not available | 12 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Overload protection |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, RV adapter, battery charging cables, and wheel kit | Oil, tool kit, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | Not available | 3 |
| Commercial Warranty | 3 | 3 |
| Part Number | Not available | RYi4022VNM |
| Additional specs | ||
| Summary | The Firman W03661OF is a 3650-watt inverter generator built around a 208cc OHV 4-stroke engine. This wattage class powers most household circuits simultaneously, including refrigerators, microwaves, and power tools, making it suitable for home backup and job site work. The gasoline fuel type and 6-gallon tank give users a familiar refueling experience without special infrastructure. Because this unit runs on standard fuel, users can source power anywhere gasoline is sold, a major advantage over propane or dual-fuel models. The inverter technology produces clean power at 3 percent THD, which means laptops, phones, and sensitive electronics charge safely without risk of voltage spikes. | The Ryobi RYi4022X is a 4000-Watt Gasoline Powered Digital Inverter Generator equipped with CO Detect Shutdown Sensor, designed to provide clean and consistent power suitable for sensitive electronics. |