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.
- Firman W03083
- Yamaha EF3000iSEB
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 @25%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | Firman W03083 | Yamaha EF3000iSEB |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | No |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 3000 W | 2800 W |
| Starting watts | 3300 W | Winner: Winner: 3500 W |
| Noise (lower limit) | 58 dB | Winner: Winner: 54.5 dB |
| Weight | Winner: Winner: 90 lbs | 156 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 10 h | Winner: Winner: 18.6 h |
| Fuel tank | 1.8 gal | 3.4 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 23.2 x 17.8 x 17.9 | 26.8 x 17.5 x 21.9 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | No | Yes |
| THD | <3% % | <3% % |
| Engine | ||
| Engine | 171 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve | 171 cc Yamaha MZ175 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Not available | Recoil, Electric |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 2800 W |
| Starting watts | Not available | 3500 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 | Not available |
| 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 | Floating |
| UPC | 840876130834 | 799530396652 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 2800 |
| Starting Watts (Gasoline) | Not available | 3500 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Yamaha MZ175 OHV 4-stroke |
| Engine Displacement | 171 | 171 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Engine Oil Type | Not available | SAE 10W-30 |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Starting Components | Recoil, Electric, Remote | Recoil, Electric |
| Included Accessories | Oil, funnel, tool kit, key fob, battery charging cables, and battery | Battery |
| Warranty & identification | ||
| Commercial Warranty | Not available | 3 |
| Additional specs | ||
| Summary | The Firman W03083 is a 3000-watt inverter generator built for users who need portable power without the noise penalty. Its 171cc OHV engine delivers enough wattage to run a refrigerator, microwave, and multiple power tools simultaneously, making it suitable for RV trips, job sites, and home backup. The inverter design keeps total harmonic distortion below 3%, which means laptops, phones, and sensitive electronics stay safe from voltage spikes. At 58 decibels, this unit operates quietly enough for residential neighborhoods and campgrounds where noise restrictions apply. | The Yamaha EF3000iSEB is a 3000-watt inverter generator featuring Boost Technology, providing an additional 500-watt boost for up to 10 seconds. It offers quiet operation, fuel efficiency, and is equipped with an electric starter and built-in wheels for portability. |
- Most PowerfulFirman W030833000W running
- QuietestYamaha EF3000iSEB54.5 dB
- Longest Runtimeh at 50% load
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Firman W03083
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Yamaha EF3000iSEB
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