Skip to content
Westinghouse WGen9500TFc EFI vs DuroMax XP15000HXT+

Westinghouse WGen9500TFc EFI vs DuroMax XP15000HXT+

Comparing two tri-fuel generators: the Westinghouse WGen9500TFc EFI (9500W) and DuroMax XP15000HXT+ (12000W). Find the right fit for your power needs.

  • DuroMax XP15000HXT+
  • Westinghouse WGen9500TFc EFI

Comparison Overview

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's a roughly 26% gap in continuous power, which matters a lot if you're running multiple large appliances or powering a bigger home during an outage.

Both units run on gasoline, propane, or natural gas, and both produce 74 dB of noise, so they're equally loud in operation. The Westinghouse is slightly lighter at 222 lbs compared to the DuroMax's 237 lbs, though neither qualifies as easy to move around. Where the Westinghouse stands out is its EFI (Electronic Fuel Injection) system, which improves fuel efficiency and cold-start reliability. It also carries a higher overall score of 7.18 versus the DuroMax's 6.43.

The DuroMax counters with a longer 5-year warranty compared to the Westinghouse's 3-year coverage, plus better runtime numbers: 17.9 hours at 25% load and 12 hours at 50% load, versus 15 and 10 hours respectively for the Westinghouse. Buyers who need maximum wattage and longer run sessions will lean toward the DuroMax, while those who value fuel efficiency and a more refined engine system may prefer the Westinghouse.

Key takeaways

  • DuroMax XP15000HXT+ delivers 12,000 running watts versus the Westinghouse's 9,500 watts
  • Westinghouse WGen9500TFc EFI features electronic fuel injection for better efficiency and cold starts
  • Both generators run on gasoline, propane, or natural gas and produce 74 dB of noise
  • DuroMax offers a longer 5-year warranty compared to Westinghouse's 3-year coverage
  • DuroMax runs up to 17.9 hours at 25% load, outpacing the Westinghouse's 15 hours
  • Westinghouse is 15 lbs lighter at 222 lbs and scored higher overall at 7.18 vs 6.43

Best use cases

Choose the Westinghouse WGen9500TFc EFI if your power needs fall comfortably within the 9,500-watt range. For most average-sized homes, this is enough to keep essentials running during an outage: a refrigerator, sump pump, window AC unit, lights, and several smaller devices. The EFI system is a genuine advantage here. Electronic fuel injection means the engine adjusts its fuel mixture automatically, which translates to easier starts in cold weather, smoother operation, and better fuel economy over time. If you've ever fought with a carburetor on a cold morning, you'll appreciate this feature. At 222 lbs, it's also a touch easier to position, though you'll still want a wheel kit or a helping hand.

Choose the DuroMax XP15000HXT+ if you need to power a larger home or run heavy-draw equipment. With 12,000 running watts, you can comfortably operate a central air conditioning system, an electric range, a well pump, and still have headroom for other loads. This makes it a strong candidate for whole-house backup or job site use where multiple power tools run simultaneously. The longer runtime (17.9 hours at quarter load) means fewer refueling interruptions during extended outages, and the 5-year warranty provides extra peace of mind for a machine you might not use frequently but need to count on when it matters.

The tradeoff is straightforward. The DuroMax gives you more power and longer runtime but weighs more and lacks the fuel injection refinement of the Westinghouse. The Westinghouse is a more efficient, slightly more portable package, but it simply cannot match the DuroMax's output ceiling. Neither generator is an inverter model, so sensitive electronics like laptops should be plugged in through a surge protector with either unit.

Verdict & recommendation

If your priority is powering a larger home or running high-draw equipment without worrying about wattage limits, the DuroMax XP15000HXT+ is the better tool for the job. Its 12,000 running watts, longer runtime, and 5-year warranty make it a dependable workhorse for serious backup power needs.

If you want a more fuel-efficient generator with modern EFI technology and your power demands stay within 9,500 watts, the Westinghouse WGen9500TFc EFI is a smarter, more refined choice that should cost less to fuel over time.

Both are capable tri-fuel generators built for home standby and heavy-duty portable use. The right pick comes down to how much power you actually need and whether you value engine efficiency or maximum output more.

Last updated April 26, 2026

  • Model XP15000HXT+
    Model XP15000HXT+

    DuroMax 12,000W Tri-Fuel Generator

    12000W
    Running
    74 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 XP15000HXT+Westinghouse 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)
Winner: Winner: 74 dB
Winner: Winner: 74 dB
Weight
237 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
10.6 gal
6.6 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29.5 x 28 x 26
27.3 x 20.6 x 22.6
Electrical
Voltage (AC)
120/240V 60 Hz
120/240
Voltage (DC)
Not available
5
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<5% %
<5% %
Engine
Engine
500 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 availableNot 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 availableNot available
Running watts
10500 W
Not available
Starting watts
13000 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 availableNot 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
Not available
true
UPC
811640017156
850060639043
Core / High-priority specs
Running Watts (Gasoline)
12000
9500
Running Watts (Propane)
11400
Not available
Running Watts (Natural Gas)
10500
Not available
Starting Watts (Gasoline)
15000
12500
Starting Watts (Propane)
14250
Not available
Starting Watts (Natural Gas)
13000
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
2x Duplex 120V 20A (5-20R) GFCI; 2x 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, cast iron sleeve
OHV 4-stroke, cast iron sleeve
Engine Displacement
500
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
Not available
Yes
Included Accessories
Oil, funnel, tool kit, key fob, battery charger, 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
Warranty & identification
Residential Warranty
5
Not available
Commercial Warranty
5
Not available
Additional specs
Summary
The DuroMax XP15000HXT+ is a 12,000-watt tri-fuel generator built for serious backup power and job site work. Running on gasoline, propane, or natural gas, it delivers 15,000 peak watts and 12,000 running watts, enough to power multiple heavy loads simultaneously like refrigerators, air conditioners, and construction tools. The tri-fuel flexibility means users can choose the most available or cost-effective fuel source for their situation. This is a stationary workhorse, not a portable grab-and-go unit. At 237 pounds with a 29.5 x 28 x 26 inch footprint, it requires permanent placement or serious logistics to move. The included wheel kit helps, but this generator is built to stay put once deployed.
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
    DuroMax XP15000HXT+
    74 dB
  • Longest Runtime
    DuroMax XP15000HXT+
    12h at 50% load
Where to buy
Prices can change. We update these automatically.
DuroMax XP15000HXT+
Store links
No links yet.
Westinghouse WGen9500TFc EFI
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.