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Westinghouse WGen9500DFc vs DuroMax XP12000EH

Westinghouse WGen9500DFc vs DuroMax XP12000EH

Comparing two 9500-watt dual-fuel generators: the Westinghouse WGen9500DFc and DuroMax XP12000EH. See which fits your home backup or job site needs.

  • DuroMax XP12000EH
  • Westinghouse WGen9500DFc

Comparison Overview

The Westinghouse WGen9500DFc and DuroMax XP12000EH are remarkably similar on paper. Both deliver 9,500 running watts, operate on gasoline or propane, produce 74 dB of noise, and come with a 3-year warranty. The differences are subtle but worth understanding before you buy.

The Westinghouse edges ahead with a higher 12,500 starting watts compared to the DuroMax's 12,000 starting watts. That extra 500 watts of surge capacity can matter when you're starting multiple motor-driven appliances at once, like a well pump and an air conditioner. The WGen9500DFc is also about 12 pounds lighter at 212 lbs versus 224 lbs, which makes a small but real difference when moving the unit around.

Where the DuroMax fights back is runtime. At 25% load, the XP12000EH runs for an impressive 19 hours on a single tank, compared to 12 hours for the Westinghouse. That's a significant gap if you're running the generator overnight during a power outage and want to avoid refueling in the dark. At 50% load, both units deliver about 8 hours of runtime.

Buyers who prioritize peak starting power and a slightly more portable package may lean toward the Westinghouse, while those who value extended runtime at lighter loads will appreciate what the DuroMax offers.

Key takeaways

  • Both deliver 9,500 running watts with dual-fuel gasoline and propane capability
  • Westinghouse provides 12,500 starting watts versus DuroMax's 12,000 starting watts
  • DuroMax runs 19 hours at 25% load, seven hours longer than the Westinghouse
  • Westinghouse weighs 212 lbs, about 12 pounds lighter than the DuroMax at 224 lbs
  • Both produce 74 dB of noise and include a 3-year warranty
  • Westinghouse scores 7.54 overall compared to DuroMax's 5.77 out of 10

Best use cases

Choose the Westinghouse WGen9500DFc if you need to start heavy loads reliably. Its 12,500 starting watts give you a wider margin for kicking on large appliances simultaneously, which is especially useful for whole-home backup scenarios where a central air conditioner, refrigerator, and sump pump might all cycle on within seconds of each other. The lighter weight of 212 lbs also makes it a slightly better choice if you need to wheel the generator in and out of a garage or load it onto a truck bed for job site use. The Westinghouse also carries a notably higher overall score of 7.54 out of 10, reflecting stronger performance across multiple evaluation criteria.

Choose the DuroMax XP12000EH if long, uninterrupted runtime is your top concern. At 25% load, you get 19 hours per tank, which is seven hours more than the Westinghouse. For extended power outages where you're running just the essentials (lights, a fridge, phone chargers, and maybe a furnace blower), that difference means sleeping through the night without worrying about fuel. This makes the DuroMax particularly appealing for emergency preparedness in storm-prone areas where outages can stretch for days and fuel resupply may be uncertain.

Both generators are conventional (non-inverter) models, so neither is ideal for powering sensitive electronics without an external surge protector or power conditioner. Both run at 74 dB, which is roughly the volume of a vacuum cleaner, so noise is a wash. And both offer dual-fuel flexibility, letting you switch to propane when gasoline is hard to find or for cleaner, more stable long-term storage. For RV use, either will handle a 50-amp hookup, though their size and weight make them better suited to stationary setups than frequent travel.

Verdict & recommendation

These two generators share so much common ground that the decision comes down to a couple of key priorities. If your main concern is starting capacity and overall build quality, the Westinghouse WGen9500DFc is the stronger pick, with 500 more starting watts, a lighter frame, and a higher overall performance score. If you value marathon runtime at lighter loads and plan to use the generator primarily for extended outage coverage, the DuroMax XP12000EH's 19-hour runtime at 25% load is hard to ignore.

Neither is a bad choice. Both deliver 9,500 running watts of dual-fuel power with identical noise levels and warranty coverage. For most home backup buyers, the Westinghouse offers a more well-rounded package. For preppers and anyone in regions with long, unpredictable outages, the DuroMax's fuel efficiency at low loads could be the deciding factor.

Last updated March 30, 2026

  • Model XP12000EH
    Model XP12000EH

    DuroMax 9,500W Dual-Fuel Generator

    9500W
    Running
    74 dB
    Noise
    View details
  • Model WGen9500DFc
    Model WGen9500DFc

    Westinghouse 9,500W Dual-Fuel Generator

    9500W
    Running
    74 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
SpecificationDuroMax XP12000EHWestinghouse WGen9500DFc
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Dual-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
Winner: Winner: 9500 W
Winner: Winner: 9500 W
Starting watts
12000 W
Winner: Winner: 12500 W
Noise (lower limit)
Winner: Winner: 74 dB
Winner: Winner: 74 dB
Weight
224 lbs
Winner: Winner: 212 lbs
Run time @50% load
Winner: Winner: 8 h
Winner: Winner: 8 h
Run time @25% load
19 h
12 h
Fuel tank
8.3 gal
6.6 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29 x 30 x 26
27.2 x 26.1 x 26.5
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
12
Not available
GFCI outletsYesYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
23 %
Engine
Engine
457 cc DuroMax OHV 4-stroke, cast iron sleeve
Westinghouse OHV 4-stroke, cast iron sleeve
Alternator
Not available
Not available
Starting system
Recoil, Electric
Recoil, Electric, Remote
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
9500 W
9500 W
Starting watts
12000 W
12500 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 h
8 h
Run time @25% load
19 h
12 h
PropaneNot availableNot available
Running watts
8075 W
8500 W
Starting watts
10200 W
11200 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
7 h
Run time @25% load
7 h
Not available
Other
Data center
Not available
Not available
Indicators
true
false
Compliance
CARB, EPA
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Not available
true
UPC
811640014681
850011336663
Core / High-priority specs
Running Watts (Gasoline)
9500
9500
Running Watts (Propane)
8075
8500
Starting Watts (Gasoline)
12000
12500
Starting Watts (Propane)
10200
11200
Runtime @ 50% Load (Gasoline)
8
8
Runtime @ 50% Load (Propane)
3.5
7
Runtime @ 25% Load (Gasoline)
19
12
Runtime @ 25% Load (Propane)
7
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R)
2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
457
457
Cylinder Sleeve
cast iron sleeve
cast iron
Alternator Winding Material
Copper windings
Not available
Engine Oil Type
Not available
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
19
12
Runtime @ 50% Load (Gasoline)
8
8
Runtime @ 50% Load (Propane)
3.5
7
Controls & display
Display Type
Voltmeter
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Included Accessories
Funnel, tool kit, propane hose, battery, and wheel kit
Oil, funnel, tool kit, key fob, battery charger, propane hose, battery, and wheel kit
Warranty & identification
Commercial Warranty
3
3
Additional specs
Summary
The DuroMax XP12000EH is a 9,500-watt dual-fuel generator built around a 457 cc OHV 4-stroke engine with cast iron sleeves. This wattage class handles simultaneous operation of multiple household appliances, power tools, and RV systems. The dual-fuel capability means users can switch between gasoline and propane based on fuel availability and storage preferences. Gasoline delivers 9,500 running watts with an 8-hour runtime at 50% load. Propane reduces output to 8,075 running watts but extends runtime to 19 hours at 25% load, making it the better choice for extended backup scenarios where refueling frequency matters. The 12,000 peak watts handle motor inrush demands during startup of compressors, pumps, and air conditioning units.
The Westinghouse WGen9500DFc is a dual-fuel generator with a rated wattage of 9500 watts on gasoline and 8500 watts on propane, designed for versatile power needs.
  • Most Powerful
    DuroMax XP12000EH
    9500W running
  • Quietest
    DuroMax XP12000EH
    74 dB
  • Longest Runtime
    DuroMax XP12000EH
    8h at 50% load
Where to buy
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DuroMax XP12000EH
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Westinghouse WGen9500DFc
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