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
- DuroStar DS4000S
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 @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | A-iPower SUA4300iD | DuroStar DS4000S |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 3450 W | 3300 W |
| Starting watts | Winner: Winner: 4300 W | 4000 W |
| Noise (lower limit) | Winner: Winner: 62 dB | 69 dB |
| Weight | Winner: Winner: 54.8 lbs | 92 lbs |
| Run time @50% load | Not available | Winner: Winner: 12 h |
| Run time @25% load | 7.5 h | 26 h |
| Fuel tank | 1.6 gal | 4 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 22.2 x 14.4 x 20.3 | 23 x 18 x 17.5 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 149 cc OHV 4-stroke | DuroStar 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 | 3450 W | 3300 W |
| Starting watts | 4300 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 | 7.5 h | 26 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 | 811640011840 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3450 | 3300 |
| Running Watts (Propane) | 3100 | Not available |
| Starting Watts (Gasoline) | 4300 | 4000 |
| Starting Watts (Propane) | 3900 | Not available |
| Runtime @ 50% Load (Gasoline) | Not available | 12 |
| Runtime @ 25% Load (Gasoline) | 7.5 | 26 |
| 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 (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 149 | 208 |
| Engine Oil Type | Not available | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 7.5 | 26 |
| Runtime @ 50% Load (Gasoline) | Not available | 12 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | No | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, propane hose, dual port USB adapter, RV adapter, and battery charging cables | Funnel and tool kit |
| Warranty & identification | ||
| Residential Warranty | 3 | Not available |
| Commercial Warranty | 3 | Not available |
| 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 DuroStar DS4000S is a 3,300-watt gasoline generator built around a DuroStar OHV 4-stroke engine that delivers 4,000 peak watts for startup surges. This wattage range powers essential household appliances, power tools, and small job site equipment simultaneously. A single person can operate it because the recoil starting system requires only manual pull-cord engagement, though the 92-pound weight means transport over distance demands planning. The 4-gallon fuel tank runs 26 hours at 25 percent load or 12 hours at 50 percent load, making it suitable for extended outages or multi-day outdoor use without constant refueling. EPA and CARB compliance clears this unit for all 50 states. |
- Most PowerfulA-iPower SUA4300iD3450W running
- QuietestA-iPower SUA4300iD62 dB
- Longest RuntimeDuroStar DS4000S12h at 50% load
Where to buy
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A-iPower SUA4300iD
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DuroStar DS4000S
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