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

  • DuroStar DS11000DX
  • VEVOR GF12000E-A2
  • Model DS11000DX
    Model DS11000DX

    DuroStar 9,000W Dual-Fuel Generator

    9000W
    Running
    74 dB
    Noise
    View details
  • Model GF12000E-A2
    Model GF12000E-A2

    VEVOR 9,000W Tri-Fuel Generator

    9000W
    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
SpecificationDuroStar DS11000DXVEVOR GF12000E-A2
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Tri-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
Winner: Winner: 9000 W
Winner: Winner: 9000 W
Starting watts
11000 W
Winner: Winner: 13500 W
Noise (lower limit)
Winner: Winner: 74 dB
0 dB
Weight
Winner: Winner: 230 lbs
234.8 lbs
Run time @50% load
9 h
Winner: Winner: 9.5 h
Run time @25% load
19 h
Not available
Fuel tank
8.3 gal
9.2 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29 x 30 x 26 in
29.9 x 28.7 x 27.4
Electrical
Voltage (AC)
120/240V 60 Hz
AC120V/AC240V
Voltage (DC)
Not available
Not available
GFCI outletsYesNo
Covered outletsNoNo
Automatic Voltage RegulationYesYes
THD
Not available
0 %
Engine
Engine
457 cc OHV 4-stroke, cast iron sleeve
Four-Stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric
Not available
Warranty
Warranty
5 years
0 years
Power by fuel
GasolineNot availableNot available
Running watts
9000 W
9000 W
Starting watts
11000 W
13500 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
9 h
9.5 h
Run time @25% load
19 h
Not available
PropaneNot availableNot available
Running watts
8550 W
8100 W
Starting watts
10450 W
12000 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
3.5 h
Not available
Run time @25% load
7 h
Not available
Natural gasNot availableNot available
Running watts
Not available
7200 W
Starting watts
Not available
11000 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
Not available
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
Not available
Compliance
CARB, EPA
Not available
Security
Not available
Not available
Spark arrestorYesNo
Neutral
Not available
Not available
UPC
811640016722
Not available
Core / High-priority specs
Generator Type
Not available
Generator
Running Watts (Gasoline)
9000
9000
Running Watts (Propane)
8550
8100
Running Watts (Natural Gas)
Not available
7200
Starting Watts (Gasoline)
11000
13500
Starting Watts (Propane)
10450
12000
Starting Watts (Natural Gas)
Not available
11000
Runtime @ 50% Load (Gasoline)
9
9.5
Runtime @ 50% Load (Propane)
3.5
Not available
Runtime @ 25% Load (Gasoline)
19
Not available
Runtime @ 25% Load (Propane)
7
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
Not available
Electrical & power
Frequency
60
Not available
Engine & construction
Engine Type
OHV 4-stroke, cast iron sleeve
Not available
Engine Displacement
457
500
Cylinder Sleeve
cast iron sleeve
Not available
Alternator Winding Material
Copper windings
Not available
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
19
Not available
Runtime @ 50% Load (Gasoline)
9
9.5
Runtime @ 50% Load (Propane)
3.5
Not available
Outlets & connections
Transfer Switch ReadyNoNo
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Not available
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Wheel kit
Not available
Included Accessories
Funnel, tool kit, propane hose, battery, and wheel kit
Not available
Warranty & identification
Part Number
Not available
GF12000E-A2
Additional specs
Summary
The DuroStar DS11000DX is a 9,000-watt dual fuel generator built around a 457cc OHV engine with cast iron sleeves. This wattage places it squarely in the home backup and light job site category. On gasoline, it runs 9 hours at half load and 19 hours at quarter load. On propane, runtime drops to 3.5 hours at half load and 7 hours at quarter load, making gasoline the practical choice for extended outages. The dual fuel option gives users flexibility when propane is more accessible or economical, though gasoline delivers longer operating windows per tank. At 74 dB, the noise level sits in the moderate range for this power class, meaning it will be audible but not prohibitively loud in residential settings. The 8.3-gallon fuel tank combined with the quarter-load runtime means users can stretch a single fill to nearly a full day of light operation.
The VEVOR GF12000E-A2 is a tri-fuel generator with a rated wattage of 9000 and a peak wattage of 13500.
  • Most Powerful
    DuroStar DS11000DX
    9000W running
  • Quietest
    DuroStar DS11000DX
    74 dB
  • Longest Runtime
    VEVOR GF12000E-A2
    9.5h at 50% load
Where to buy
Prices can change. We update these automatically.
DuroStar DS11000DX
Store links
No links yet.
VEVOR GF12000E-A2
Store links
No links yet.
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