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Westinghouse WGen9500DF vs DuroMax XP12000HX

Westinghouse WGen9500DF vs DuroMax XP12000HX

Both deliver 9500 running watts, but DuroMax runs longer and has 5-year warranty, while Westinghouse is lighter with 12500 starting watts.

  • DuroMax XP12000HX
  • Westinghouse WGen9500DF

Comparison Overview

The biggest real-world difference is endurance and warranty: the DuroMax XP12000HX runs up to 19 hours at 25% load and carries a 5-year warranty, while the Westinghouse WGen9500DF is rated for 12 hours at 25% load with a 3-year warranty. If you expect long outages or want fewer refuel stops, that extra runtime can matter more than small spec gaps.

On power, these are very close for typical home backup loads. Both deliver 9500 running watts and are dual-fuel, so you can choose gasoline for maximum output or propane for easier storage and cleaner fueling. Westinghouse has a slight edge in surge capacity at 12500 starting watts versus 12000 starting watts on the DuroMax, which can help with motor starts like a well pump or larger AC.

They’re similarly loud at 74 dB, and neither is an inverter model, so they’re better for backup power and tools than for ultra-quiet camping or sensitive electronics without a quality surge protector. Westinghouse is lighter at 211 lb versus 230 lb, which can make moving and storing it a bit less of a chore. Pick Westinghouse if you value a little more starting headroom and easier handling, or DuroMax if runtime and longer warranty are your priorities.

Key takeaways

  • Both deliver 9500 running watts, dual-fuel flexibility, and 74 dB rated noise.
  • Westinghouse WGen9500DF offers 12500 starting watts and weighs 211 lb.
  • DuroMax XP12000HX provides 19 hours runtime at 25% load and 5-year warranty.
  • At 50% load, Westinghouse runs 8 hours, DuroMax runs 9 hours.
  • Neither is an inverter generator, better for backup and tools than quiet camping.

Best use cases

Choose the Westinghouse WGen9500DF if you want the most starting punch in this pair and a slightly easier generator to move around. With 12500 starting watts and 9500 running watts, it’s a strong fit for home backup where you may be starting motor loads, like a sump pump, well pump, refrigerator compressor, or a central AC that needs a higher surge to kick on. The 211 lb weight is still heavy, but it’s noticeably less than the DuroMax, which can matter if you roll it out of a garage for storms and then store it again. The tradeoff is shorter listed runtime (12 hours at 25% load, 8 hours at 50%), so you may refuel more often during multi-day outages.

Choose the DuroMax XP12000HX if your main goal is longer stretches between refueling and longer coverage. Its 19-hour runtime at 25% load and 9-hour runtime at 50% load are a practical advantage for overnight use, extended outages, or job site days where you do not want to babysit fuel. The 5-year warranty is also a meaningful differentiator if you plan to keep the generator for many seasons. Power is essentially the same for steady loads at 9500 running watts, but it has slightly less surge capacity at 12000 starting watts, so very surge-heavy setups may need more careful load management. It’s also heavier at 230 lb, which can be a downside if you frequently move it alone.

For RV and camping use, both are louder (74 dB) and non-inverter, so they’re generally better as home backup or tool power than as “quiet campground” generators.

Verdict & recommendation

If your priority is longer runtime and longer warranty coverage, the DuroMax XP12000HX is the more comfortable choice for extended outages and all-day use, thanks to up to 19 hours at 25% load and a 5-year warranty. If your priority is a bit more starting headroom for motor-driven appliances and a slightly easier unit to maneuver, the Westinghouse WGen9500DF stands out with 12500 starting watts and a lighter 211 lb build.

Because both are dual-fuel, non-inverter models with the same 9500 running watts and similar 74 dB noise, the decision mostly comes down to how you value surge capacity and portability versus runtime and warranty. Match the pick to your outage length, refueling tolerance, and how often you’ll move the generator.

Last updated February 26, 2026

  • Model XP12000HX
    Model XP12000HX

    DuroMax 9,500W Dual-Fuel Generator

    9500W
    Running
    74 dB
    Noise
    View details
  • Model WGen9500DF
    Model WGen9500DF

    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 XP12000HXWestinghouse WGen9500DF
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
230 lbs
Winner: Winner: 211 lbs
Run time @50% load
Winner: Winner: 9 h
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
120/240V 60 Hz
Voltage (DC)
Not available
Not available
GFCI outletsYesYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
457 cc 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
5 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
9 h
8 h
Run time @25% load
19 h
12 h
PropaneNot availableNot available
Running watts
9025 W
8500 W
Starting watts
11400 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
Not available
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
811640016227
853544008298
Core / High-priority specs
Running Watts (Gasoline)
9500
9500
Running Watts (Propane)
9025
8500
Starting Watts (Gasoline)
12000
12500
Starting Watts (Propane)
11400
11200
Runtime @ 50% Load (Gasoline)
9
8
Runtime @ 50% Load (Propane)
3.5
Not available
Runtime @ 25% Load (Gasoline)
19
12
Runtime @ 25% Load (Propane)
7
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
2x Duplex 120V 20A (5-20R); 1x 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, cast iron sleeve
Engine Displacement
457
457
Cylinder Sleeve
Cast iron sleeve
Cast iron sleeve
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)
9
8
Runtime @ 50% Load (Propane)
3.5
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesNo
Included equipment
Mobility Components
Not available
Yes
Starting Components
Recoil, Electric
Not available
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
Residential Warranty
5
3
Commercial Warranty
5
3
Additional specs
Summary
The DuroMax XP12000HX is a 9,500-watt dual-fuel generator built for job sites, home backup, and RV use. Its 12,000-watt peak capacity handles the startup surge of air conditioners, compressors, and welders, while the 9,500-watt running output sustains multiple heavy tools or household circuits simultaneously. Gasoline delivers 19 hours of runtime at quarter load, making this unit suitable for extended outages or multi-day events without constant refueling. The dual-fuel design means users can switch between gasoline and propane depending on fuel availability and storage constraints. On propane at 25% load, runtime drops to 7 hours, trading endurance for cleaner emissions and longer shelf life. The 457 cc cast iron engine is built for durability on job sites where generators take abuse. This is a stationary workhorse, not a portable grab-and-go unit.
The Westinghouse WGen9500DF is a dual fuel portable generator capable of producing up to 12,500 peak watts and 9,500 running watts on gasoline, and 11,200 peak watts and 8,500 running watts on propane. It features a 457cc 4-Stroke OHV engine, push-button electric start with remote key fob, and a VFT Data Center displaying real-time information. Designed for home backup, job sites, or recreational use, it offers up to 12 hours of run time on a 6.6-gallon fuel tank.
  • Most Powerful
    DuroMax XP12000HX
    9500W running
  • Quietest
    DuroMax XP12000HX
    74 dB
  • Longest Runtime
    DuroMax XP12000HX
    9h at 50% load
Where to buy
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DuroMax XP12000HX
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Westinghouse WGen9500DF
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