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| Specification | DuroMax XP9500iH | Firman W03383 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | Yes | Yes |
| Running watts | Winner: Winner: 7600 W | 3300 W |
| Starting watts | Winner: Winner: 9500 W | 3650 W |
| Noise (lower limit) | 61 dB | Winner: Winner: 58 dB |
| Weight | 216 lbs | Winner: Winner: 91 lbs |
| Run time @50% load | Winner: Winner: 11 h | Not available |
| Run time @25% load | 21 h | 9 h |
| Fuel tank | 7.1 gal | 1.8 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 26.2 x 25 x 29.6 | 23.2 x 17.8 x 17.9 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120 |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | <3% % |
| Engine | ||
| Engine | 459 cc OHV 4-stroke, cast iron sleeve. | 193 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 5 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 3300 W |
| Starting watts | 9500 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 | 11 h | Not available |
| Run time @25% load | 21 h | 9 h |
| Propane | Not available | Not available |
| Running watts | 7200 W | Not available |
| Starting watts | 9025 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 | 5 h | Not available |
| Run time @25% load | 9.5 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Not available |
| UPC | 811640017026 | 840876133835 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 3300 |
| Running Watts (Propane) | 7200 | Not available |
| Starting Watts (Gasoline) | 9500 | 3650 |
| Starting Watts (Propane) | 9025 | Not available |
| Runtime @ 50% Load (Gasoline) | 11 | Not available |
| Runtime @ 50% Load (Propane) | 5 | Not available |
| Runtime @ 25% Load (Gasoline) | 21 | 9 |
| Runtime @ 25% Load (Propane) | 9.5 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 459 cc OHV 4-stroke, cast iron sleeve. | OHV 4-stroke |
| Engine Displacement | 459 | 193 |
| Cylinder Sleeve | cast_iron_sleeve | cast iron sleeve |
| Alternator Winding Material | Copper | Not available |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 21 | 9 |
| Runtime @ 50% Load (Gasoline) | 11 | Not available |
| Runtime @ 50% Load (Propane) | 5 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Included Accessories | Funnel, tool kit, key fob, battery charger, propane hose, and battery | Oil, funnel, tool kit, key fob, battery charger, battery charging cables, and battery |
| Warranty & identification | ||
| Commercial Warranty | 5 | Not available |
| Additional specs | ||
| Summary | The DuroMax XP9500iH is a 7,600-watt dual-fuel inverter generator built for whole-home backup and job-site power. Running on either gasoline or propane, it delivers 9,500 starting watts to handle motor inrush demands from air conditioners, well pumps, and power tools. The inverter produces clean 3% THD power, meaning laptops, televisions, and medical equipment run safely without risk of voltage spikes. This is a stationary or semi-portable unit. At 216 pounds, it requires wheels or multiple people to move, making it suited for permanent installation or fixed-location backup rather than frequent relocation.
The fuel flexibility matters in extended outages. Gasoline runs 11 hours at half load before refueling, while propane stretches to 5 hours at the same draw. At quarter load, gasoline delivers 21 hours of runtime, propane 9.5 hours. For homeowners choosing between fuel types, gasoline offers longer intervals between refills, propane offers cleaner storage and no fuel degradation over months. | The Firman W03383 supplies 3,300 running watts for household essentials, RV loads, and campsite equipment. Its inverter keeps THD below 3%, making the output suitable for laptops, televisions, and other sensitive electronics. A TT-30R outlet serves 30-amp RV connections directly, while remote, electric, and recoil starting give owners three ways to get power running. |
