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| Specification | Firman W01785 | Yamaha EF3000iS |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | No |
| RV ready | No | No |
| Running watts | 1700 W | Winner: Winner: 2800 W |
| Starting watts | 2100 W | Winner: Winner: 3000 W |
| Noise (lower limit) | Winner: Winner: 54 dB | 54.5 dB |
| Weight | Winner: Winner: 45.9 lbs | 136 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 9 h | Winner: Winner: 18.6 h |
| Fuel tank | 0.9 gal | 3.4 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 20 x 12.1 x 16.7 | 26.8 x 17.5 x 21.9 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 5 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | Not available |
| Engine | ||
| Engine | 80 cc OHV 4-stroke, cast iron sleeve. | 171 cc Yamaha MZ175 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Not available | Recoil |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 2800 W |
| Starting watts | Not available | 3000 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 | Not available | 18.6 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 | Floating | Floating |
| UPC | 840876117859 | 810856030645 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 2800 |
| Starting Watts (Gasoline) | Not available | 3000 |
| Runtime @ 25% Load (Gasoline) | Not available | 18.6 |
| AC Outlet Types | 1x 120V 20A (5-20R); 1x 120V 30A (L5-30R) | AC outlets1x Duplex 120V 20A (5-20R)1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 80 cc OHV 4-stroke, cast iron sleeve. | Yamaha MZ175 OHV 4-stroke |
| Engine Displacement | 80 | 171 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | Not available | 18.6 |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, and RV adapter | Battery charging cables |
| Warranty & identification | ||
| Residential Warranty | 3 | Not available |
| Commercial Warranty | Not available | 3 |
| Additional specs | ||
| Summary | The Firman W01785 is a 1,700-watt inverter generator built on an 80 cc OHV 4-stroke engine with a cast iron sleeve. At 45.9 lbs, this unit delivers enough power to run a laptop, phone chargers, small power tools, and basic household appliances simultaneously, but cannot handle heavy loads like air conditioners or large welders. The 2,100-watt peak gives it the starting surge needed for devices with inrush current, such as refrigerators or circular saws. Because the W01785 runs on gasoline and produces less than 3 percent THD, users can safely connect sensitive electronics like laptops and televisions without risk of voltage spikes causing damage. The 54 dB noise level means operation at conversational volume, making this unit suitable for campgrounds, residential neighborhoods, and RV parks where noise restrictions apply. | The Yamaha EF3000iS is a 3000-watt inverter generator designed for quiet operation and portability, featuring advanced technologies like Smart Throttle and Noise Block, and backed by a 3-year limited warranty. |