Compare Generators Side-by-Side
Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
- A-iPower SUA4300iD
- Firman W03386
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @25%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | A-iPower SUA4300iD | Firman W03386 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 3450 W | 3300 W |
| Starting watts | Winner: Winner: 4300 W | 3650 W |
| Noise (lower limit) | 62 dB | Winner: Winner: 58 dB |
| Weight | Winner: Winner: 54.8 lbs | 91 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 7.5 h | Winner: Winner: 9 h |
| Fuel tank | 1.6 gal | 1.8 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 22.2 x 14.4 x 20.3 | 23.2 x 17.8 x 17.9 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 12 | 12 |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | <3% % |
| Engine | ||
| Engine | 149 cc OHV 4-stroke | 193 cc OHV 4-stroke, cast iron sleeve. |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3450 W | 3300 W |
| Starting watts | 4300 W | 3650 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 | 7.5 h | 9 h |
| Propane | Not available | Not available |
| Running watts | 3100 W | Not available |
| Starting watts | 3900 W | Not available |
| 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 | 11 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Floating |
| UPC | 850016881649 | 840876133866 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3450 | 3300 |
| Running Watts (Propane) | 3100 | Not available |
| Starting Watts (Gasoline) | 4300 | 3650 |
| Starting Watts (Propane) | 3900 | Not available |
| Runtime @ 25% Load (Gasoline) | 7.5 | 9 |
| Runtime @ 25% Load (Propane) | 11 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 149 | 193 |
| Cylinder Sleeve | Not available | cast iron sleeve |
| Engine Oil Type | Not available | See 'Add Engine Oil' Section |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 7.5 | 9 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | No | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, propane hose, dual port USB adapter, RV adapter, and battery charging cables | Oil, funnel, tool kit, key fob, battery charger, battery charging cables, and battery |
| Warranty & identification | ||
| Residential Warranty | 3 | Not available |
| Commercial Warranty | 3 | 3 |
| Additional specs | ||
| Summary | The A-iPower SUA4300iD is a 3,450-watt dual-fuel generator that runs on either gasoline or propane. This flexibility means users can refuel based on what's available, whether that's a gas station during an outage or a propane tank for extended storage. The 4,300-watt peak output handles startup surges from refrigerators, air compressors, and power tools without stumbling. At 54.8 lbs, this unit moves easily into trucks, basements, or storage closets, making it practical for homeowners, campers, and job site crews who need power without the burden of a stationary installation. | The Firman W03386 is a 3,300-watt inverter generator built for RV camping, emergency backup, and light job site work. Its 3,650-watt peak capacity handles startup surges from air conditioning units, refrigerators, and power tools without strain. Because the unit runs on gasoline with a 1.8-gallon tank, users get up to 9 hours of runtime at 25% load before refueling. The inverter topology and sub-3% THD output means laptops, smartphones, and sensitive electronics charge safely without voltage spikes that damage circuitry. At 58 dB, it operates at conversational volume, making it acceptable for residential neighborhoods and campgrounds where noise restrictions apply. This is a mid-sized workhorse for users who need portable power without the weight penalty of larger stationary units. |
- Most PowerfulA-iPower SUA4300iD3450W running
- QuietestFirman W0338658 dB
- Longest Runtimeh at 50% load
Where to buy
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A-iPower SUA4300iD
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Firman W03386
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