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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • Genmax GM2200i
  • VEVOR R2000iSP
  • Model GM2200i
    Model GM2200i

    Genmax 1,800W Gas Generator

    1800W
    Running
    58 dB
    Noise
    View details
  • Model R2000iSP
    Model R2000iSP

    VEVOR 1,800W Gas Generator

    1800W
    Running
    67 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
SpecificationGenmax GM2200iVEVOR R2000iSP
General
Product type
Generator
Not available
Fuel
Gasoline
Gasoline
InverterYesNo
Parallel capableYesNo
RV readyNoNo
Running watts
Winner: Winner: 1800 W
Winner: Winner: 1800 W
Starting watts
2200 W
Winner: Winner: 2900 W
Noise (lower limit)
Winner: Winner: 58 dB
67 dB
Weight
Winner: Winner: 41.9 lbs
48.5 lbs
Run time @50% load
Winner: Winner: 6 h
Winner: Winner: 6 h
Run time @25% load
8 h
Not available
Fuel tank
1 gal
1.1 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
18.9 x 11.4 x 17.3
19.6 x 11.4 x 18.1
Electrical
Voltage (AC)
120
120
Voltage (DC)
5
Not available
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
<3% %
Not available
Engine
Engine
79.7 cc Dinking OHV 4-stroke
Not available
Alternator
Not available
Not available
Starting system
Recoil
Not available
Warranty
Warranty
1 years
Not available
Power by fuel
GasolineNot availableNot available
Running watts
1800 W
1800 W
Starting watts
2200 W
2900 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
6 h
6 h
Run time @25% load
8 h
Not available
Other
Data center
Not available
Not available
Indicators
true
Not available
Compliance
EPA, ANSI/PGMA G300-2023
Not available
Security
Not available
Not available
Spark arrestorYesNo
Neutral
Not available
Not available
UPC
738349925141
Not available
Core / High-priority specs
Running Watts (Gasoline)
1800
1800
Starting Watts (Gasoline)
2200
2900
Runtime @ 50% Load (Gasoline)
6
6
Runtime @ 25% Load (Gasoline)
8
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R)
Not available
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Dinking OHV 4-stroke
Not available
Engine Displacement
79.7
79.7
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
8
Not available
Runtime @ 50% Load (Gasoline)
6
6
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Overload protection
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Funnel and tool kit
Not available
Warranty & identification
Part Number
Not available
R2000iSP
Additional specs
Summary
The GENMAX GM2200i is a 2200-watt gasoline inverter generator featuring a 79.7cc engine, CO detection, and parallel capability, designed for quiet and efficient power supply.
The VEVOR R2000iSP is a 1,800W gasoline inverter generator built for portability and selective-load backup. Its 2,900W starting surge handles refrigerators, window AC units, and power tools, while the 1,800W continuous rating anchors everyday use like camping, tailgating, and short-duration home outages. At 48.5 lbs and 19.6 x 11.4 x 18.1 inches, it prioritizes grab-and-go convenience over extended runtime.
  • Most Powerful
    Genmax GM2200i
    1800W running
  • Quietest
    Genmax GM2200i
    58 dB
  • Longest Runtime
    Genmax GM2200i
    6h at 50% load
Where to buy
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Genmax GM2200i
Store links
No links yet.
VEVOR R2000iSP
Store links
No links yet.
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