Skip to content
Skip to main content
Westinghouse WGen9500c vs DuroMax XP12000E

Westinghouse WGen9500c vs DuroMax XP12000E

Westinghouse WGen9500c vs DuroMax XP12000E: same 9500W output, but DuroMax runs longer at 25% load. Pick by runtime vs surge needs.

  • DuroMax XP12000E
  • Westinghouse WGen9500c

Comparison Overview

The biggest real-world difference is fuel runtime at lighter loads. Both deliver 9500 running watts and are rated at 74 dB, but the DuroMax XP12000E is listed for 19 hours at 25% load versus 12 hours for the Westinghouse WGen9500c, which can matter for overnight outages when you are not pushing the generator hard.

On surge capacity, the Westinghouse has a small edge at 12,500 starting watts compared with 12,000 starting watts on the DuroMax. That extra bump can help with tougher motor starts (like a well pump or larger AC) when several loads kick on close together, though both are in the same “whole-home essentials” class.

They are also similarly heavy and traditional (non-inverter) designs, with the Westinghouse at 209.1 lb and the DuroMax at 217 lb, and both include a 3-year warranty. If you want longer light-load run time, lean DuroMax, if you want a bit more starting headroom at similar size and noise, lean Westinghouse.

Key takeaways

  • Both deliver 9500 running watts and are rated at 74 dB noise.
  • DuroMax XP12000E runs up to 19 hours at 25% load, longer than Westinghouse.
  • Westinghouse WGen9500c provides 12,500 starting watts vs 12,000 on DuroMax.
  • Both are non-inverter gasoline generators, better for backup than quiet camping.
  • Westinghouse weighs 209.1 lb, DuroMax weighs 217 lb, both are heavy to move.
  • Both include a 3-year warranty for similar long-term ownership expectations.

Best use cases

Choose the Westinghouse WGen9500c if you want the most starting cushion in this apples-to-apples matchup. With 12,500 starting watts (and 9500 running watts), it is a sensible fit for home backup where motor-driven loads can be finicky, such as a well pump, sump pump, refrigerator, freezer, and a furnace blower cycling on and off. It is also a good pick if you expect more frequent “everything turns on at once” moments, since that extra surge rating can reduce nuisance overload trips. The tradeoff is shorter listed runtime at lighter loads, 12 hours at 25%, so you may refuel more often during long outages when you are only powering essentials.

Choose the DuroMax XP12000E if your priority is stretching fuel between fill-ups during extended outages or long work sessions. It matches the Westinghouse at 9500 running watts and the same 74 dB noise rating, but its 19-hour runtime at 25% load is a meaningful advantage when you are running a fridge, lights, internet gear, and occasional microwave without heavy continuous demand. It is also a practical choice for job sites where the generator may idle along powering chargers and a few tools for most of the day. The tradeoffs are slightly less surge capacity at 12,000 starting watts and a bit more weight at 217 lb, so it is not quite as forgiving for hard-starting loads and not any easier to move.

For camping or RV use, both are typically louder and less “electronics-friendly” than inverter models, so they fit better as stationary backup or work power than quiet campground power.

Verdict & recommendation

If your priority is longer time between refueling at lighter loads, the DuroMax XP12000E is the more outage-friendly choice on paper with 19 hours at 25% load. If your priority is squeezing out a little more starting headroom for motor loads, the Westinghouse WGen9500c’s 12,500 starting watts gives you a small but real buffer.

Since both are gasoline, non-inverter generators with the same 9500 running watts, 74 dB rating, and a 3-year warranty, the decision mostly comes down to whether you value runtime (DuroMax) or surge margin (Westinghouse), plus which one you can get at a better price locally. Pick the one that matches your outage pattern and the loads you actually plan to start.

Last updated February 27, 2026

  • Model XP12000E
    Model XP12000E

    DuroMax 9,500W Gas Generator

    9500W
    Running
    74 dB
    Noise
    View details
  • Model WGen9500c
    Model WGen9500c

    Westinghouse 9,500W Gas 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 XP12000EWestinghouse WGen9500c
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
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
217 lbs
Winner: Winner: 209.1 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)
30 x 30 x 26
27.2 x 26.1 x 26.5
Electrical
Voltage (AC)
120/240
120/240V 60 Hz
Voltage (DC)
12
5
GFCI outletsYesYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
DuroMax OHV 4-stroke, cast iron sleeve
457 cc 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
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
Not available
UPC
811640014674
850011336670
Core / High-priority specs
Running Watts (Gasoline)
9500
9500
Starting Watts (Gasoline)
12000
12500
Runtime @ 50% Load (Gasoline)
8
8
Runtime @ 25% Load (Gasoline)
19
12
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) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke, cast iron sleeve
OHV 4-stroke
Engine Displacement
457
457
Cylinder Sleeve
cast iron sleeve
Cast iron
Alternator Winding Material
Copper windings
Not available
Engine Oil Type
10W-30
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
19
12
Runtime @ 50% Load (Gasoline)
8
8
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Starting Components
Recoil, Electric
Recoil, Electric, Remote
Included Accessories
Funnel, tool kit, battery, and wheel kit
Oil, funnel, tool kit, key fob, battery charger, battery, and wheel kit
Warranty & identification
Commercial Warranty
Not available
3
Additional specs
Summary
The DuroMax XP12000E is a gasoline-powered generator with a rated wattage of 9500 watts and a peak wattage of 12000 watts. It features a recoil and electric starting system and is compliant with CARB and EPA standards.
The Westinghouse WGen9500c is a portable gas-powered generator delivering 9,500 running watts and 12,500 peak watts, ideal for home backup power with features like remote electric start and a CO sensor.
  • Most Powerful
    DuroMax XP12000E
    9500W running
  • Quietest
    DuroMax XP12000E
    74 dB
  • Longest Runtime
    DuroMax XP12000E
    8h at 50% load
Where to buy
Prices can change. We update these automatically.
DuroMax XP12000E
Store links
No links yet.
Westinghouse WGen9500c
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.