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  • Firman W03383
  • Powerhorse s5000id
  • Model W03383
    Model W03383

    Firman 3,300W Gas Generator

    3300W
    Running
    58 dB
    Noise
    View details
  • Model s5000id
    Model s5000id

    Powerhorse 3,900W Dual-Fuel Generator

    3900W
    Running
    58 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 W03383Powerhorse s5000id
General
Product type
Generator
Generator
Fuel
Gasoline
Dual-Fuel
InverterYesYes
Parallel capableYesYes
RV readyYesYes
Running watts
3300 W
Winner: Winner: 3900 W
Starting watts
3650 W
Winner: Winner: 5000 W
Noise (lower limit)
Winner: Winner: 58 dB
Winner: Winner: 58 dB
Weight
Winner: Winner: 91 lbs
113.5 lbs
Run time @50% load
Not available
Winner: Winner: 9.5 h
Run time @25% load
9 h
Not available
Fuel tank
1.8 gal
3.17 gal
Fuel gaugeNoYes
Approx. dimensions (L × W × H)
23.2 x 17.8 x 17.9
25 x 18.1 x 21.1
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
5
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<3% %
<3% %
Engine
Engine
193 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve
224 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil, Electric, Remote
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot availableNot available
Running watts
3300 W
3900 W
Starting watts
3650 W
5000 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
9.5 h
Run time @25% load
9 h
Not available
PropaneNot availableNot available
Running watts
Not available
3600 W
Starting watts
Not available
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
10 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Not available
Floating
UPC
840876133835
Not available
Core / High-priority specs
Running Watts (Gasoline)
3300
3900
Running Watts (Propane)
Not available
3600
Starting Watts (Gasoline)
3650
5000
Starting Watts (Propane)
Not available
4500
Runtime @ 50% Load (Gasoline)
Not available
9.5
Runtime @ 50% Load (Propane)
Not available
10
Runtime @ 25% Load (Gasoline)
9
Not available
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
224 cc OHV 4-stroke
Engine Displacement
193
224
Cylinder Sleeve
cast iron sleeve
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
9
Not available
Runtime @ 50% Load (Gasoline)
Not available
9.5
Runtime @ 50% Load (Propane)
Not available
10
Safety & compliance
Overload Protection System
Not available
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Starting Components
Not available
Recoil, Electric, Remote
Included Accessories
Oil, funnel, tool kit, key fob, battery charger, battery charging cables, and battery
Funnel, tool kit, key fob, propane hose, and battery
Warranty & identification
Commercial Warranty
Not available
2
Additional specs
Summary
The Firman W03383 is a 3300-watt inverter generator built around a 193cc OHV 4-stroke engine with a cast iron sleeve. At this wattage, it can run a refrigerator, microwave, and several lights simultaneously, or power essential household circuits during an outage. The inverter technology keeps total harmonic distortion below 3%, which protects laptops, smartphones, and other sensitive electronics from voltage spikes. This unit bridges the gap between lightweight portables and mid-range backup power, making it useful for both recreational trips and emergency home backup.
The Powerhorse s5000id is a dual-fuel inverter generator delivering 5,000 surge watts and 3,900 rated watts, suitable for various applications including emergency home backup, RVs, and outdoor events.
  • Most Powerful
    Powerhorse s5000id
    3900W running
  • Quietest
    Firman W03383
    58 dB
  • Longest Runtime
    Powerhorse s5000id
    9.5h at 50% load
Where to buy
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Firman W03383
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Powerhorse s5000id
Store links
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