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Westinghouse WGen11500DFc vs DuroMax XP12000HX

Westinghouse WGen11500DFc vs DuroMax XP12000HX

Comparing the Westinghouse WGen11500DFc and DuroMax XP12000HX dual-fuel generators. See how 11,500 vs 9,500 running watts and warranty differences stack up.

  • DuroMax XP12000HX
  • Westinghouse WGen11500DFc

Comparison Overview

Analysis by AJ Quick
Mechanical engineer and founder of RightGenerator

The Westinghouse WGen11500DFc delivers 11,500 running watts and 14,500 starting watts, giving it a significant power advantage over the DuroMax XP12000HX, which provides 9,500 running watts and 12,000 starting watts. That's roughly 21% more continuous power from the Westinghouse, a meaningful gap when you're running multiple large appliances or powering demanding equipment. Both units are dual-fuel capable, run on gasoline or propane, weigh the same 230 pounds, and produce 74 dB of noise.

Runtime is nearly identical between the two. The Westinghouse runs about 19 hours at 25% load and 9.5 hours at 50% load, while the DuroMax manages 19 hours at 25% load and 9 hours at 50% load. The DuroMax does hold one notable advantage: it comes with a 5-year warranty compared to the Westinghouse's 3-year warranty, which could matter for buyers who plan to keep their generator for the long haul.

Homeowners who need maximum wattage for whole-house backup will lean toward the Westinghouse WGen11500DFc. Those who want solid power with longer warranty coverage and don't need quite as much output may find the DuroMax XP12000HX a better fit for their budget and peace of mind.

Key takeaways

  • Westinghouse WGen11500DFc delivers 11,500 running watts, 2,000 more than the DuroMax
  • DuroMax XP12000HX includes a 5-year warranty versus Westinghouse's 3-year coverage
  • Both generators weigh 230 pounds and produce 74 dB of noise
  • Both are dual-fuel models running on gasoline or propane
  • Runtime is nearly identical at 19 hours on 25% load for both units
  • Westinghouse offers 14,500 starting watts for high-surge appliances and tools

Best use cases

Choose the Westinghouse WGen11500DFc if you need to power a larger home during outages or run heavy-draw equipment on a job site. With 11,500 running watts, it can handle a central air conditioning unit alongside a refrigerator, sump pump, lights, and other essentials simultaneously. If you live in an area prone to extended power outages from storms or ice, that extra 2,000 watts of running capacity over the DuroMax gives you breathing room to avoid difficult choices about what to turn off. It's also a strong pick for contractors who need to run multiple power tools at once, since the 14,500 starting watts can absorb the surge demands of compressors and saws without tripping.

Choose the DuroMax XP12000HX if your power needs are more moderate and you value long-term reliability assurance. At 9,500 running watts, it still has plenty of capacity for most home backup scenarios, comfortably running a smaller central AC unit or window units, a well pump, kitchen appliances, and electronics. The 5-year warranty is a real differentiator. That's two extra years of manufacturer coverage, which adds up if you're storing this generator for emergency use and want confidence it'll be supported years down the road. The DuroMax also makes sense if you're working within a tighter budget, as models with slightly lower wattage often come in at a lower price point.

Both generators share the same weight, similar runtime, and identical noise levels, so portability and sound won't be deciding factors here. The choice really comes down to how much power you need versus how much warranty protection you want.

Verdict & recommendation

If your priority is raw power output and you want the confidence to run a larger home or demanding equipment without worrying about overloading, the Westinghouse WGen11500DFc is the stronger choice with its 11,500 running watts. If you'd rather have a longer warranty and your power needs fall comfortably within 9,500 running watts, the DuroMax XP12000HX offers solid performance with better long-term coverage.

Neither generator is clearly superior across the board. They weigh the same, sound the same, and run for nearly the same duration on a tank of fuel. The Westinghouse wins on wattage, the DuroMax wins on warranty, and everything else is essentially a wash. Pick based on whichever factor matters more to your specific situation.

Last updated April 26, 2026

  • Model XP12000HX
    Model XP12000HX

    DuroMax 9,500W Dual-Fuel Generator

    9500W
    Running
    74 dB
    Noise
    View details
  • Model WGen11500DFc
    Model WGen11500DFc

    Westinghouse 11,500W Dual-Fuel Generator

    11500W
    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 WGen11500DFc
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Dual-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
9500 W
Winner: Winner: 11500 W
Starting watts
12000 W
Winner: Winner: 14500 W
Noise (lower limit)
Winner: Winner: 74 dB
Winner: Winner: 74 dB
Weight
Winner: Winner: 230 lbs
Winner: Winner: 230 lbs
Run time @50% load
9 h
Winner: Winner: 9.5 h
Run time @25% load
19 h
19 h
Fuel tank
8.3 gal
9.5 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29 x 30 x 26
28.9 x 29.6 x 26.9
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
Not available
5
GFCI outletsYesYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
≤5% %
Engine
Engine
457 cc OHV 4-stroke, cast iron sleeve
550 cc 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
11500 W
Starting watts
12000 W
14500 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
19 h
PropaneNot availableNot available
Running watts
9025 W
10500 W
Starting watts
11400 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
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
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Not available
Bonded to frame
UPC
811640016227
850060639814
Core / High-priority specs
Running Watts (Gasoline)
9500
11500
Running Watts (Propane)
9025
10500
Starting Watts (Gasoline)
12000
14500
Starting Watts (Propane)
11400
13500
Runtime @ 50% Load (Gasoline)
9
9.5
Runtime @ 50% Load (Propane)
3.5
7
Runtime @ 25% Load (Gasoline)
19
19
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
550 cc OHV 4-stroke, Cast iron sleeve
Engine Displacement
457
550
Cylinder Sleeve
Cast iron sleeve
Cast iron sleeve
Alternator Winding Material
Copper windings
Copper windings
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
19
19
Runtime @ 50% Load (Gasoline)
9
9.5
Runtime @ 50% Load (Propane)
3.5
7
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil, Electric
Not available
Fuel Connection Components
Not available
Propane hose
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
Not available
Commercial Warranty
5
Not available
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 WGen11500DFc is a dual fuel portable generator designed for reliable power supply during emergencies or outdoor use. It offers 14,500 peak watts and 11,500 running watts on gasoline, and 13,500 peak watts and 10,500 running watts on propane. Equipped with a 550cc 4-Stroke OHV engine, it features a push-button electric start, remote start capability, and a CO sensor for safety.
  • Most Powerful
    Westinghouse WGen11500DFc
    11500W running
  • Quietest
    DuroMax XP12000HX
    74 dB
  • Longest Runtime
    Westinghouse WGen11500DFc
    9.5h at 50% load
Where to buy
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DuroMax XP12000HX
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Westinghouse WGen11500DFc
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