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| Specification | DuroStar DS4000S | AIVOLT VS4350101 |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Gasoline | Gasoline |
| Inverter | No | Yes |
| Parallel capable | No | Yes |
| RV ready | No | Yes |
| Running watts | 3300 W | Winner: Winner: 3450 W |
| Starting watts | 4000 W | Winner: Winner: 4300 W |
| Noise (lower limit) | 69 dB | Winner: Winner: 60 dB |
| Weight | 92 lbs | Winner: Winner: 51 lbs |
| Run time @50% load | Winner: Winner: 12 h | Not available |
| Run time @25% load | 26 h | 5.5 h |
| Fuel tank | 4 gal | 0.92 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 23 x 18 x 17.5 | 19.68in x 11.81in x 17.32in |
| Electrical | ||
| Voltage (AC) | 120 | Not available |
| Voltage (DC) | Not available | 12V |
| GFCI outlets | No | No |
| Covered outlets | No | No |
| Automatic Voltage Regulation | Yes | No |
| THD | Not available | Not available |
| Engine | ||
| Engine | DuroStar OHV 4-stroke | AIVOLT’s 149cc 4-stroke OHV air-cooled engine |
| Alternator | Not available | Not available |
| Starting system | Recoil | Not available |
| Warranty | ||
| Warranty | 3 years | Not available |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3300 W | 3450 W |
| Starting watts | 4000 W | 4300 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 | 12 h | Not available |
| Run time @25% load | 26 h | 5.5 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | Not available |
| Compliance | CARB, EPA | Meets ANSI/PGMA G300-2018 requirements |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Floating | Not available |
| UPC | 811640011840 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3300 | 3450 |
| Starting Watts (Gasoline) | 4000 | 4300 |
| Runtime @ 50% Load (Gasoline) | 12 | Not available |
| Runtime @ 25% Load (Gasoline) | 26 | 5.5 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R) | 120V 20A outlet, 120V 30A locking outlet |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 4-stroke OHV air-cooled |
| Engine Displacement | 208 | 149 |
| Alternator Winding Material | Not available | Copper |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 26 | 5.5 |
| Runtime @ 50% Load (Gasoline) | 12 | Not available |
| Controls & display | ||
| Display Type | Not available | 5-in-1 LCD display |
| Idle Control System | Not available | Eco Mode |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Built-in overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Mobility Components | Not available | Ergonomically designed handle |
| Included Accessories | Funnel and tool kit | Not available |
| Additional specs | ||
| Summary | 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. | The AIVOLT VS4350101 is a gasoline inverter generator with a rated wattage of 3450W and a peak wattage of 4300W. |
