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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.

  • Champion Power Equipment 201183
  • Firman W01785
  • Model 201183
    Model 201183

    Champion Power Equipment 1,850W Dual-Fuel Generator

    1850W
    Running
    53 dB
    Noise
    View details
  • Model W01785
    Model W01785

    Firman 1,700W Gas Generator

    1700W
    Running
    54 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
SpecificationChampion Power Equipment 201183Firman W01785
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyNoNo
Running watts
Winner: Winner: 1850 W
1700 W
Starting watts
Winner: Winner: 2500 W
2100 W
Noise (lower limit)
Winner: Winner: 53 dB
54 dB
Weight
Winner: Winner: 39 lbs
45.9 lbs
Run time @50% load
Not available—
Not available—
Run time @25% load
Winner: Winner: 11.5 h
9 h
Fuel tank
1.1 gal
0.9 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
17.3 x 12 x 17.7
20 x 12.1 x 16.7
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
5
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<3% %
<3% %
Engine
Engine
OHV 4-stroke
80 cc OHV 4-stroke, cast iron sleeve.
Alternator
Not available—
Not available—
Starting system
Recoil
Not available—
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
1850 W
Not available—
Starting watts
2500 W
Not available—
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
11.5 h
Not available—
PropaneNot available—Not available—
Running watts
1665 W
Not available—
Starting watts
2500 W
Not available—
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
34 h
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
CARB, EPA, ANSI/PGMA G300-2023
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Floating
Floating
UPC
817198025896
840876117859
Core / High-priority specs
Running Watts (Gasoline)
1850
Not available—
Running Watts (Propane)
1665
Not available—
Starting Watts (Gasoline)
2500
Not available—
Starting Watts (Propane)
2500
Not available—
Runtime @ 25% Load (Gasoline)
11.5
Not available—
Runtime @ 25% Load (Propane)
34
Not available—
AC Outlet Types
1x Duplex 120V 20A (5-20R)
1x 120V 20A (5-20R); 1x 120V 30A (L5-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
80 cc OHV 4-stroke, cast iron sleeve.
Engine Displacement
79
80
Cylinder Sleeve
Not available—
cast iron sleeve
Engine Oil Type
10W-30
Not available—
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
11.5
Not available—
Safety & compliance
Overload Protection System
Overload protection
Not available—
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil
Not available—
Included Accessories
Oil, funnel, propane hose, and dual port USB adapter
Oil, funnel, tool kit, and RV adapter
Warranty & identification
Residential Warranty
Not available—
3
Commercial Warranty
3
Not available—
Additional specs
Summary
The Champion Power Equipment 201183 is a 2500-watt dual fuel inverter generator featuring CO Shield® carbon monoxide auto shutoff system, capable of running on gasoline or propane, and offers quiet operation at 53 dBA.
The Firman W01785 is a 1,700-watt inverter generator built on an 80 cc OHV 4-stroke engine with a cast iron sleeve. At 45.9 lbs, this unit delivers enough power to run a laptop, phone chargers, small power tools, and basic household appliances simultaneously, but cannot handle heavy loads like air conditioners or large welders. The 2,100-watt peak gives it the starting surge needed for devices with inrush current, such as refrigerators or circular saws. Because the W01785 runs on gasoline and produces less than 3 percent THD, users can safely connect sensitive electronics like laptops and televisions without risk of voltage spikes causing damage. The 54 dB noise level means operation at conversational volume, making this unit suitable for campgrounds, residential neighborhoods, and RV parks where noise restrictions apply.
  • Most Powerful
    Champion Power Equipment 201183
    1850W running
  • Quietest
    Champion Power Equipment 201183
    53 dB
  • Longest Runtime
    h at 50% load
Where to buy
Prices can change. We update these automatically.
Champion Power Equipment 201183
Store links
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Firman W01785
Store links
No links yet.
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