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| Specification | A-iPower SUA4500 | Firman P03631 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | Yes |
| Running watts | 3500 W | Winner: Winner: 3650 W |
| Starting watts | Winner: Winner: 4500 W | 4450 W |
| Noise (lower limit) | Winner: Winner: 68 dB | 75 dB |
| Weight | Winner: Winner: 111 lbs | 119.5 lbs |
| Run time @50% load | 11 h | Winner: Winner: 14 h |
| Run time @25% load | 14 h | Not available |
| Fuel tank | 4 gal | 5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 23.4 x 22.8 x 22.6 | 24.8 x 21.7 x 21.7 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | No | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | <25% % |
| Engine | ||
| Engine | Senci OHV 4-stroke, cast iron sleeve | 208 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 2 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3500 W | 3650 W |
| Starting watts | 4500 W | 4450 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 | 14 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | CARB, EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | true |
| UPC | 851217006077 | 840876136317 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3500 | 3650 |
| Starting Watts (Gasoline) | 4500 | 4450 |
| Runtime @ 50% Load (Gasoline) | 11 | 14 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R) | 1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (TT-30R); 1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 208 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 223 | 208 |
| Cylinder Sleeve | cast iron sleeve | cast iron sleeve |
| Engine Oil Type | SAE 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 11 | 14 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Mobility Components | Not available | Yes |
| Starting Components | Recoil | Not available |
| Included Accessories | Oil, tool kit, and wheel kit | Oil, funnel, tool kit, key fob, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 2 | 3 |
| Additional specs | ||
| Summary | The A-iPower SUA4500 is a 3,500-watt running generator built around a 223cc OHV 4-stroke engine with cast iron sleeves. This wattage class handles essential household appliances, power tools, and small job site equipment without breaking into the heavy-duty contractor tier. The 4,500-watt peak output gives it enough surge capacity to start refrigerators, air compressors, and welders that draw high inrush current. Gasoline fuel means quick refueling at any gas station, and the 4-gallon tank stretches runtime to 14 hours at quarter load or 11 hours at half load. That refueling cycle keeps users in the field longer without constant tank swaps. | The Firman P03631 is a 3,650-watt gasoline generator built for homeowners, RV users, and outdoor enthusiasts who need reliable backup power without breaking portability limits. At this wattage, the unit can run a refrigerator, microwave, and several power tools simultaneously, or power an RV's air conditioning and appliances during camping trips. The 4,450-watt peak capacity handles the startup surge of compressors and air conditioners, which draw 2 to 3 times their running wattage on initial startup.
The P03631 delivers 14 hours of runtime at 50% load from its 5-gallon tank, meaning a user can power essential devices through a full day and night without refueling. This runtime window makes it practical for weekend camping or a 24-hour power outage without the need for a second fuel run. The gasoline fuel type keeps refueling simple at any gas station, and the inclusion of a fuel gauge eliminates guesswork about tank level. |