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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 W03383
  • Powermate PM1200i
  • Model W03383
    Model W03383

    Firman 3,300W Gas Generator

    3300W
    Running
    58 dB
    Noise
    View details
  • Model PM1200i
    Model PM1200i

    Powermate 1,000W Gas Generator

    1000W
    Running
    0 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 W03383Powermate PM1200i
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesNo
RV readyYesNo
Running watts
Winner: Winner: 3300 W
1000 W
Starting watts
Winner: Winner: 3650 W
1200 W
Noise (lower limit)
Winner: Winner: 58 dB
0 dB
Weight
91 lbs
Winner: Winner: 33 lbs
Run time @50% load
Not available—
Winner: Winner: 5.5 h
Run time @25% load
9 h
7 h
Fuel tank
1.8 gal
0.79 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
23.2 x 17.8 x 17.9
18.3 x 10.3 x 15.7
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
Not available—
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesYes
THD
<3% %
Less than 3% %
Engine
Engine
193 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve
54 cc OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil, Electric, Remote
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
3300 W
1000 W
Starting watts
3650 W
1200 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—
5.5 h
Run time @25% load
9 h
7 h
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
CARB, EPA
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Not available—
Not available—
UPC
840876133835
696471078909
Core / High-priority specs
Running Watts (Gasoline)
3300
1000
Starting Watts (Gasoline)
3650
1200
Runtime @ 50% Load (Gasoline)
Not available—
5.5
Runtime @ 25% Load (Gasoline)
9
7
AC Outlet Types
1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
193
54
Cylinder Sleeve
cast iron sleeve
Not available—
Engine Oil Type
Not available—
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
9
7
Runtime @ 50% Load (Gasoline)
Not available—
5.5
Safety & compliance
Overload Protection System
Not available—
Low oil and overload protection
Low Oil ProtectionYesYes
Included equipment
Included Accessories
Oil, funnel, tool kit, key fob, battery charger, battery charging cables, and battery
Funnel and tool kit
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 Powermate PM1200i is a portable inverter generator designed to provide clean and stable power for sensitive electronics, tools, and appliances. It features a fully enclosed case for ultra-quiet operation and RPM+ technology that automatically adjusts engine RPM based on load demand to reduce sound emissions and conserve fuel.
  • Most Powerful
    Firman W03383
    3300W running
  • Quietest
    Firman W03383
    58 dB
  • Longest Runtime
    Powermate PM1200i
    5.5h at 50% load
Where to buy
Prices can change. We update these automatically.
Firman W03383
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Powermate PM1200i
Store links
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