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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.

  • WEN DF1100X
  • Cat RP12000 E
  • Model DF1100X
    Model DF1100X

    WEN 8,300W Dual-Fuel Generator

    8300W
    Running
    81 dB
    Noise
    View details
  • Model RP12000 E
    Model RP12000 E

    Cat 12,000W Gas Generator

    12000W
    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
SpecificationWEN DF1100XCat RP12000 E
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoYes
Running watts
8300 W
Winner: Winner: 12000 W
Starting watts
11000 W
Winner: Winner: 15000 W
Noise (lower limit)
Winner: Winner: 81 dB
0 dB
Weight
Winner: Winner: 213.8 lbs
350 lbs
Run time @50% load
8.5 h
Winner: Winner: 11.7 h
Run time @25% load
Not available—
Not available—
Fuel tank
6.6 gal
13.2 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
27.3 x 20.6 x 21.9 in
35.7 x 32.7 x 35.8
Electrical
Voltage (AC)
120/240V
120/240
Voltage (DC)
12
12
GFCI outletsNoYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
15 %
5 %
Engine
Engine
457 cc OHV 4-stroke
670 cc Rato OHV V-Twin
Alternator
Not available—
Not available—
Starting system
Not available—
Electric
Warranty
Warranty
2 years
2 years
Power by fuel
GasolineNot available—Not available—
Running watts
8300 W
12000 W
Starting watts
11000 W
15000 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
8.5 h
11.7 h
Run time @25% load
Not available—
Not available—
PropaneNot available—Not available—
Running watts
7500 W
Not available—
Starting watts
Not available—
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
3 h
Not available—
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
false
false
Compliance
EPA
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Not available—
true
UPC
44459911005
815683023891
Core / High-priority specs
Running Watts (Gasoline)
8300
12000
Running Watts (Propane)
7500
Not available—
Starting Watts (Gasoline)
11000
15000
Runtime @ 50% Load (Gasoline)
8.5
11.7
Runtime @ 50% Load (Propane)
3
Not available—
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)
2x Duplex 120V 20A (5-20R) GFCI; 2x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
670 cc Rato OHV V-Twin
Engine Displacement
457
670
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
8.5
11.7
Runtime @ 50% Load (Propane)
3
Not available—
Safety & compliance
Overload Protection System
Not available—
Low oil and overload protection
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesNo
Included equipment
Starting Components
Not available—
Battery, Battery Charger, Wheel Kit
Included Accessories
Oil, propane hose, battery, and wheel kit
Oil, funnel, tool kit, battery charger, battery, and wheel kit
Warranty & identification
Part Number
Not available—
502-3700
Additional specs
Summary
The WEN DF1100X is an 8,300-watt dual-fuel generator that bridges gasoline and propane operation without sacrificing peak output. Its 11,000 starting watts handle equipment startup surges, making it suitable for jobsites, emergency backup, and extended outdoor work where fuel choice matters.
The Cat RP12000 E is a 12,000-watt gasoline generator built for job sites, construction crews, and homeowners who need sustained power for multiple heavy tools or appliances simultaneously. The 15,000-watt peak output handles startup surges from air compressors, circular saws, and welders without stalling. At 350 pounds, this is a stationary or semi-portable unit. It ships with a wheel kit, battery charger, and full tool set, meaning users can operate it immediately without additional purchases.
  • Most Powerful
    Cat RP12000 E
    12000W running
  • Quietest
    WEN DF1100X
    81 dB
  • Longest Runtime
    Cat RP12000 E
    11.7h at 50% load
Where to buy
Prices can change. We update these automatically.
WEN DF1100X
Store links
No links yet.
Cat RP12000 E
Store links
No links yet.
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