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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 W03381
  • Powerhorse LC4500i
  • Model W03381
    Model W03381

    Firman 3,300W Gas Generator

    3300W
    Running
    58 dB
    Noise
    View details
  • Model LC4500i
    Model LC4500i

    Powerhorse 3,500W Gas Generator

    3500W
    Running
    57 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 @25%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationFirman W03381Powerhorse LC4500i
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyYesYes
Running watts
3300 W
Winner: Winner: 3500 W
Starting watts
3650 W
Winner: Winner: 4500 W
Noise (lower limit)
58 dB
Winner: Winner: 57 dB
Weight
Winner: Winner: 87 lbs
99 lbs
Run time @50% load
Not available
Not available
Run time @25% load
Winner: Winner: 10 h
Winner: Winner: 10 h
Fuel tank
1.8 gal
2.6 gal
Fuel gaugeNoYes
Approx. dimensions (L × W × H)
23.2 x 17.8 x 17.9
22.8 x 17.3 x 20
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
5
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesYes
THD
3 %
<2% %
Engine
Engine
193 cc Firman Max-Pro Series OHV 4-Stroke, Cast Iron Sleeve
212 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil, Electric
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot availableNot available
Running watts
3300 W
3500 W
Starting watts
3650 W
4500 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
10 h
10 h
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Not available
UPC
840876133811
Not available
Core / High-priority specs
Running Watts (Gasoline)
3300
3500
Starting Watts (Gasoline)
3650
4500
Runtime @ 25% Load (Gasoline)
10
10
AC Outlet Types
1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-Stroke
OHV 4-stroke
Engine Displacement
193
212
Cylinder Sleeve
Cast iron sleeve
Not available
Engine Oil Type
10W-30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
10
10
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoNo
Included equipment
Starting Components
Recoil
Recoil, Electric
Included Accessories
Oil, funnel, tool kit, and battery charging cables
Funnel, tool kit, and battery
Warranty & identification
Commercial Warranty
3
Not available
Part Number
Not available
96387
Additional specs
Summary
The Firman W03381 is a 3300-watt inverter generator built around a 193cc OHV 4-stroke engine with a cast iron sleeve. This wattage puts it in the mid-range portable segment, capable of powering a refrigerator, microwave, and several household circuits simultaneously, or running a single large tool on a job site. The 3650-watt starting capacity handles the inrush demand of compressors and air conditioning units. Because the W03381 runs on gasoline with a 1.8-gallon tank, users will find a 10-hour runtime at 25% load, which translates to roughly 2.5 hours of continuous full-load operation before refueling becomes necessary. The inverter topology and 3% THD output mean sensitive electronics like laptops, phones, and televisions receive stable, clean power without risk of damage. At 58 decibels, this generator operates at a volume comparable to normal conversation, making it suitable for residential neighborhoods and RV parks where noise restrictions apply.
The Powerhorse LC4500i is a portable inverter generator designed to provide reliable and clean power for various applications, including home backup, camping, and outdoor events. It features a 212cc engine with electric start, producing 4,500 surge watts and 3,500 rated watts. The generator operates quietly at 57dB at 1/4 load and includes a parallel-ready design for connecting two units for increased power output.
  • Most Powerful
    Powerhorse LC4500i
    3500W running
  • Quietest
    Powerhorse LC4500i
    57 dB
  • Longest Runtime
    h at 50% load
Where to buy
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Firman W03381
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Powerhorse LC4500i
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