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Westinghouse WGen9500TFc EFI vs DuroMax XP15000HXT

Westinghouse WGen9500TFc EFI vs DuroMax XP15000HXT

Comparing two tri-fuel generators: the 9,500W Westinghouse WGen9500TFc EFI and the 12,000W DuroMax XP15000HXT. Find the right fit for your power needs.

  • DuroMax XP15000HXT
  • Westinghouse WGen9500TFc EFI

Comparison Overview

AJ Quick
Analysis by AJ Quick
Mechanical engineer and founder of RightGenerator

The biggest difference between these two tri-fuel generators is raw power output. The DuroMax XP15000HXT delivers 12,000 running watts and 15,000 starting watts, while the Westinghouse WGen9500TFc EFI produces 9,500 running watts and 12,500 starting watts. That 2,500-watt gap in running capacity is significant, especially if you need to power multiple large appliances or heavy equipment simultaneously.

Both units run on gasoline, propane, or natural gas, giving you excellent fuel flexibility during emergencies or extended outages. The Westinghouse stands out with its Electronic Fuel Injection (EFI) system, which improves fuel efficiency and cold-start reliability. It also weighs considerably less at 222 lbs compared to the DuroMax's 362 lbs, making it more manageable to move around. The DuroMax counters with a longer 5-year warranty versus the Westinghouse's 3-year coverage, and slightly better runtime at both 25% load (17.9 hours vs 15 hours) and 50% load (12 hours vs 10 hours).

Noise is worth noting too. The Westinghouse operates at 74 dB, while the DuroMax runs louder at 78 dB. If you need serious whole-house backup power or job site capacity, the DuroMax is the stronger choice. If you want a lighter, quieter, and more fuel-efficient unit that still packs plenty of power, the Westinghouse is compelling.

Key takeaways

  • DuroMax XP15000HXT delivers 12,000 running watts versus the Westinghouse's 9,500 running watts
  • Westinghouse WGen9500TFc EFI weighs 222 lbs, roughly 140 lbs lighter than the DuroMax at 362 lbs
  • Both generators offer tri-fuel capability with gasoline, propane, and natural gas options
  • Westinghouse runs quieter at 74 dB compared to the DuroMax's 78 dB noise level
  • DuroMax includes a 5-year warranty while the Westinghouse offers 3 years of coverage
  • Westinghouse features Electronic Fuel Injection for improved cold starts and fuel efficiency

Best use cases

Choose the Westinghouse WGen9500TFc EFI if you want a capable tri-fuel generator that balances power with portability. At 222 lbs, it is roughly 140 lbs lighter than the DuroMax, which matters if you ever need to load it into a truck bed or reposition it around your property. The EFI system means more reliable starts in cold weather and better fuel economy over time, so you will spend less on gas during extended outages. With 9,500 running watts, it can handle most home backup scenarios, including running a refrigerator, sump pump, window AC unit, lights, and a few smaller appliances at the same time. It is also the better pick if noise is a concern, since 74 dB is noticeably quieter than 78 dB. For homeowners who want solid emergency backup without the bulk of a truly massive generator, this is a smart fit.

Choose the DuroMax XP15000HXT if your power demands are higher and weight is not a dealbreaker. With 12,000 running watts and 15,000 starting watts, this generator can handle central air conditioning, multiple power tools on a job site, or powering a larger home with more circuits during an outage. The longer runtime at both load levels (17.9 hours at 25% and 12 hours at 50%) means fewer refueling interruptions during prolonged emergencies. The 5-year warranty also provides extra peace of mind for a machine you may rely on heavily. The tradeoff is real, though. At 362 lbs, this is not a generator you will casually move around, and the higher noise level means neighbors will notice it. If you need the extra wattage and plan to keep it relatively stationary, the DuroMax earns its place.

Verdict & recommendation

If your priority is maximum power output, longer runtime, and extended warranty coverage, the DuroMax XP15000HXT is the stronger pick, especially for larger homes or demanding job sites. If you value a lighter, quieter generator with modern EFI technology and better fuel efficiency, the Westinghouse WGen9500TFc EFI is the smarter choice for moderate power needs.

Both generators offer excellent tri-fuel flexibility, which is a genuine advantage during natural disasters when any single fuel source might be hard to find. The decision really comes down to how much power you actually need versus how much weight and noise you are willing to tolerate. For most standard homes, the Westinghouse's 9,500 running watts will cover the essentials comfortably. For larger properties or professional use, the DuroMax's extra capacity is hard to ignore.

Last updated September 27, 2026

  • Model XP15000HXT
    Model XP15000HXT

    DuroMax 12,000W Tri-Fuel Generator

    12000W
    Running
    78 dB
    Noise
    View details
  • Model WGen9500TFc EFI
    Model WGen9500TFc EFI

    Westinghouse 9,500W Tri-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 XP15000HXTWestinghouse WGen9500TFc EFI
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Tri-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
Winner: Winner: 12000 W
9500 W
Starting watts
Winner: Winner: 15000 W
12500 W
Noise (lower limit)
78 dB
Winner: Winner: 74 dB
Weight
362 lbs
Winner: Winner: 222 lbs
Run time @50% load
Winner: Winner: 12 h
10 h
Run time @25% load
17.9 h
15 h
Fuel tank
13.2 gal
6.6 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
36 x 33.2 x 32
27.3 x 20.6 x 22.6
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
Not available—
5
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
12 %
<5% %
Engine
Engine
670 cc OHV 4-stroke, cast iron sleeve
457 cc OHV 4-stroke, cast iron sleeve.
Alternator
Not available—
Not available—
Starting system
Recoil, Electric, Remote
Recoil, Electric, Remote
Warranty
Warranty
5 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
12000 W
9500 W
Starting watts
15000 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
12 h
10 h
Run time @25% load
17.9 h
15 h
Natural gasNot available—Not available—
Running watts
10260 W
Not available—
Starting watts
12825 W
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
Not available—
Not available—
Run time @25% load
Not available—
Not available—
PropaneNot available—Not available—
Running watts
11400 W
Not available—
Starting watts
14250 W
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
2.8 h
Not available—
Run time @25% load
4.1 h
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
false
Compliance
CARB, EPA
CARB, EPA, ANSI/PGMA G300-2023
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
true
true
UPC
811640016852
850060639043
Core / High-priority specs
Running Watts (Gasoline)
12000
9500
Running Watts (Propane)
11400
Not available—
Running Watts (Natural Gas)
10260
Not available—
Starting Watts (Gasoline)
15000
12500
Starting Watts (Propane)
14250
Not available—
Starting Watts (Natural Gas)
12825
Not available—
Runtime @ 50% Load (Gasoline)
12
10
Runtime @ 50% Load (Propane)
2.8
Not available—
Runtime @ 25% Load (Gasoline)
17.9
15
Runtime @ 25% Load (Propane)
4.1
Not available—
AC Outlet Types
5x Duplex 120V 20A (5-20R) GFCI; 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
670
457
Cylinder Sleeve
cast iron sleeve
Cast iron sleeve
Alternator Winding Material
Copper windings
Not available—
Engine Oil Type
10W-30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
17.9
15
Runtime @ 50% Load (Gasoline)
12
10
Runtime @ 50% Load (Propane)
2.8
Not available—
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Yes
Yes
Starting Components
Recoil, Electric, Remote
Not available—
Included Accessories
Funnel, tool kit, key fob, natural gas hose with NPT adapter, propane hose, battery, and wheel kit
Oil, funnel, tool kit, key fob, battery charger, propane hose, battery, and wheel kit
Additional specs
Summary
The DuroMax XP15000HXT is a 12,000-watt tri-fuel generator built for stationary backup power and job site work. It runs on gasoline, propane, or natural gas, giving users flexibility to match fuel availability to their location. The 670cc OHV engine delivers 15,000 peak watts on startup, enough to handle the inrush demands of air conditioners, well pumps, and heavy power tools. At 12,000 running watts, it sustains refrigerators, furnaces, and multiple circuits simultaneously. This is a home-backup or construction-grade machine, not a portable camping unit.
The Westinghouse WGen9500DFc is a dual fuel portable generator that produces up to 12,500 peak watts and 9,500 running watts, operating on gasoline or propane. It features a heavy-duty 457cc 4-Stroke OHV Westinghouse Engine, runs for up to 12 hours on a 6.6-gallon gas tank, and includes a CO sensor for safety.
  • Most Powerful
    DuroMax XP15000HXT
    12000W running
  • Quietest
    Westinghouse WGen9500TFc EFI
    74 dB
  • Longest Runtime
    DuroMax XP15000HXT
    12h at 50% load
Where to buy
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DuroMax XP15000HXT
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