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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 W01785
  • Genmax GM2000i
  • Model W01785
    Model W01785

    Firman 1,700W Gas Generator

    1700W
    Running
    54 dB
    Noise
    View details
  • Model GM2000i
    Model GM2000i

    Genmax 1,600W Gas Generator

    1600W
    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 W01785Genmax GM2000i
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyNoNo
Running watts
Winner: Winner: 1700 W
1600 W
Starting watts
Winner: Winner: 2100 W
2000 W
Noise (lower limit)
Winner: Winner: 54 dB
58 dB
Weight
45.9 lbs
Winner: Winner: 34.2 lbs
Run time @50% load
Not available
Winner: Winner: 8 h
Run time @25% load
9 h
10 h
Fuel tank
0.9 gal
1.1 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
20 x 12.1 x 16.7
18.7 x 10.6 x 15.9
Electrical
Voltage (AC)
120
120
Voltage (DC)
5
5
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<3% %
≤3% %
Engine
Engine
80 cc OHV 4-stroke, cast iron sleeve.
79.7 cc Dinking OHV 4-stroke
Alternator
Not available
Not available
Starting system
Not available
Recoil
Warranty
Warranty
3 years
1 years
Power by fuel
GasolineNot availableNot available
Running watts
Not available
1600 W
Starting watts
Not available
2000 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
8 h
Run time @25% load
Not available
10 h
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
Floating
Floating
UPC
840876117859
768494055363
Core / High-priority specs
Running Watts (Gasoline)
Not available
1600
Starting Watts (Gasoline)
Not available
2000
Runtime @ 50% Load (Gasoline)
Not available
8
Runtime @ 25% Load (Gasoline)
Not available
10
AC Outlet Types
1x 120V 20A (5-20R); 1x 120V 30A (L5-30R)
1x Duplex 120V 20A (5-20R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
80 cc OHV 4-stroke, cast iron sleeve.
OHV 4-stroke
Engine Displacement
80
79.7
Cylinder Sleeve
cast iron sleeve
Not available
Engine Oil Type
Not available
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
10
Runtime @ 50% Load (Gasoline)
Not available
8
Safety & compliance
Overload Protection System
Not available
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil, funnel, tool kit, and RV adapter
Funnel and Tool Kit
Warranty & identification
Residential Warranty
3
Not available
Commercial Warranty
Not available
1
Additional specs
Summary
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.
The Genmax GM2000i is a 1,600-watt gasoline inverter generator built for portable use. Its 2,000 starting watts handle brief motor surges, while the 1,600 running watts sustain household devices, power tools, and small appliances. At 34.2 lbs, it moves easily between campsites, job sites, and storage.
  • Most Powerful
    Firman W01785
    1700W running
  • Quietest
    Firman W01785
    54 dB
  • Longest Runtime
    Genmax GM2000i
    8h at 50% load
Where to buy
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Firman W01785
Store links
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Genmax GM2000i
Store links
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