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
- Aceup Energy AI4000s
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 @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | Firman W03083 | Aceup Energy AI4000s |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Gasoline | Not available |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | Yes | No |
| Running watts | 3000 W | Winner: Winner: 3200 W |
| Starting watts | 3300 W | Winner: Winner: 4000 W |
| Noise (lower limit) | 58 dB | Winner: Winner: 55 dB |
| Weight | Winner: Winner: 90 lbs | Not available |
| Run time @50% load | Not available | Winner: Winner: 8 h |
| Run time @25% load | 10 h | Not available |
| Fuel tank | 1.8 gal | 1.32 gal |
| Fuel gauge | No | No |
| Approx. dimensions (L × W × H) | 23.2 x 17.8 x 17.9 | Not available |
| Electrical | ||
| Voltage (AC) | 120 | 120V |
| Voltage (DC) | 12 | 12V |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | No | No |
| THD | <3% % | Not available |
| Engine | ||
| Engine | 171 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve | 4-stroke OHV engine |
| Alternator | Not available | Not available |
| Starting system | Not available | Not available |
| Warranty | ||
| Warranty | 3 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 3200 W |
| Starting watts | Not available | 4000 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 | EPA compliant |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Not available | Not available |
| UPC | 840876130834 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 3200 |
| Starting Watts (Gasoline) | Not available | 4000 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R) | One 20A outlet, one L5-30R Twist-Lock receptacle |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 4-stroke OHV engine |
| Engine Displacement | 171 | 149 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Controls & display | ||
| Display Type | Not available | Intelligent gauge |
| Idle Control System | Not available | Economic mode to save fuel |
| Safety & compliance | ||
| Low Oil Protection | Yes | No |
| Included equipment | ||
| Starting Components | Recoil, Electric, Remote | Recoil start |
| Included Accessories | Oil, funnel, tool kit, key fob, battery charging cables, and battery | Oil funnel * 2; A bottle of Oil; Spark plug wrench |
| Warranty & identification | ||
| Residential Warranty | Not available | 2 |
| Commercial Warranty | Not available | 2 |
| Part Number | Not available | AI4000s |
| 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 Aceup Energy AI4000s is a 3200-watt rated generator that operates on fuel and features inverter technology, making it suitable for various power needs. |
- Most PowerfulAceup Energy AI4000s3200W running
- QuietestAceup Energy AI4000s55 dB
- Longest RuntimeAceup Energy AI4000s8h at 50% load
Where to buy
Prices can change. We update these automatically.
Firman W03083
Store links
No links yet.
Aceup Energy AI4000s
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.