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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • Firman W03082
  • Aceup Energy AI4000s
  • Model W03082
    Model W03082

    Firman 3,000W Gas Generator

    3000W
    Running
    58 dB
    Noise
    View details
  • Model AI4000s
    Model AI4000s

    Aceup Energy 3,200W Inverter Generator

    3200W
    Running
    55 dB
    Noise
    View details
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).
Generator Specifications Comparison
SpecificationFirman W03082Aceup Energy AI4000s
General
Product type
Generator
Not available
Fuel
Gasoline
Not available
InverterYesYes
Parallel capableYesYes
RV readyYesNo
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
9 h
Not available
Fuel tank
1.8 gal
1.32 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
23.2 x 17.8 x 17.9
Not available
Electrical
Voltage (AC)
120V 60 Hz
120V
Voltage (DC)
12V
12V
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
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
Recoil, Electric
Not available
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot availableNot available
Running watts
3000 W
3200 W
Starting watts
3300 W
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
9 h
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
EPA compliant
Security
Not available
Not available
Spark arrestorYesNo
Neutral
Floating
Not available
UPC
840876130827
Not available
Core / High-priority specs
Running Watts (Gasoline)
3000
3200
Starting Watts (Gasoline)
3300
4000
Runtime @ 25% Load (Gasoline)
9
Not available
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
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
9
Not available
Controls & display
Display Type
Not available
Intelligent gauge
Idle Control System
Not available
Economic mode to save fuel
Safety & compliance
Overload Protection System
Low oil and overload protection
Not available
Low Oil ProtectionYesNo
Included equipment
Starting Components
Not available
Recoil start
Included Accessories
Oil, funnel, tool kit, battery charger, battery charging cables, and battery
Oil funnel * 2; A bottle of Oil; Spark plug wrench
Warranty & identification
Residential Warranty
Not available
2
Commercial Warranty
3
2
Part Number
Not available
AI4000s
Additional specs
Summary
The Firman W03082 is a 3000-watt inverter generator built around a 171cc OHV 4-stroke engine. At this wattage, it can power most household appliances simultaneously: a refrigerator (600W), microwave (1000W), and several lights and chargers without strain. The 3300-watt peak handles motor startup surges for tools like circular saws or air compressors. Because it runs on gasoline with a 1.8-gallon tank, refueling happens frequently at higher loads, but the 9-hour runtime at 25% load means light-duty camping or backup power runs through a full day without interruption. The inverter topology keeps total harmonic distortion below 3%, which means laptops, phones, and sensitive medical equipment charge safely without risk of damage from dirty power.
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 Powerful
    Aceup Energy AI4000s
    3200W running
  • Quietest
    Aceup Energy AI4000s
    55 dB
  • Longest Runtime
    Aceup Energy AI4000s
    8h at 50% load
Where to buy
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Firman W03082
Store links
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Aceup Energy AI4000s
Store links
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