Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
| Specification | Firman W03383 | Yamaha EF6300iSDE |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | No |
| RV ready | Yes | No |
| Running watts | 3300 W | Winner: Winner: 5500 W |
| Starting watts | 3650 W | Winner: Winner: 6300 W |
| Noise (lower limit) | Winner: Winner: 58 dB | Winner: Winner: 58 dB |
| Weight | Winner: Winner: 91 lbs | 216 lbs |
| Run time @50% load | Not available | Winner: Winner: 5 h |
| Run time @25% load | 9 h | 13.3 h |
| Fuel tank | 1.8 gal | 4.5 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 23.2 x 17.8 x 17.9 | 30.7 x 24.3 x 27.2 |
| Electrical | ||
| Voltage (AC) | 120 | 120/240 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | No | Yes |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | <4.0% % |
| Engine | ||
| Engine | 193 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve | 357 cc Yamaha MZ360 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Electric |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3300 W | 5500 W |
| Starting watts | 3650 W | 6300 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 | 9 h | 13.3 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 840876133835 | 765053849371 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3300 | 5500 |
| Starting Watts (Gasoline) | 3650 | 6300 |
| Runtime @ 25% Load (Gasoline) | 9 | 13.3 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R) | 1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 193 | 357 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 9 | 13.3 |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, key fob, battery charger, battery charging cables, and battery | Battery |
| Warranty & identification | ||
| Part Number | Not available | EF63ISDEX |
| Additional specs | ||
| Summary | 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. | The Yamaha EF6300iSDE is a powerful and advanced inverter generator, ideal for emergency backup, recreational use, and DIY projects. It offers a maximum output of 6300 watts and operates quietly between 58 to 64 decibels. |
