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DuroMax XP11000iH vs Westinghouse iGen11000DFc

DuroMax XP11000iH vs Westinghouse iGen11000DFc

Both deliver 9000 running watts dual-fuel inverter power. DuroMax is quieter with a 5-year warranty, Westinghouse is lighter with longer 50% runtime.

  • DuroMax XP11000iH
  • Westinghouse iGen11000DFc

Comparison Overview

Warranty and day-to-day livability are the biggest separators here. The DuroMax XP11000iH backs its 9000 running watts and 11000 starting watts with a 5-year warranty and runs a bit quieter at 61 dB, which matters if it will sit near a house or neighbors during an outage.

The Westinghouse iGen11000DFc matches the same 9000 running watts and 11000 starting watts in a dual-fuel inverter package, but leans toward easier handling and longer mid-load endurance. It weighs 187.4 lb versus 216 lb for the DuroMax, and at 50% load it’s rated for 12 hours versus 9 hours, a meaningful difference for overnight home backup.

At lighter loads, they’re close, 17 hours (Westinghouse) versus 18 hours (DuroMax) at 25% load, while noise favors DuroMax and weight plus 50% runtime favors Westinghouse. Pick the DuroMax if warranty length and slightly lower noise matter most, or the Westinghouse if you want a lighter unit that can run longer at typical household loads.

Key takeaways

  • Both deliver 9000 running watts and 11000 starting watts, dual-fuel inverter power.
  • DuroMax XP11000iH runs quieter at 61 dB and includes a 5-year warranty.
  • Westinghouse iGen11000DFc is lighter at 187.4 lb versus 216 lb for DuroMax.
  • Westinghouse iGen11000DFc lasts 12 hours at 50% load, DuroMax is rated 9 hours.
  • At 25% load, DuroMax is rated 18 hours, Westinghouse is rated 17 hours.

Best use cases

Choose the DuroMax XP11000iH if you want a little more peace and quiet and you value long-term coverage. At 61 dB, it’s the better fit for suburban home backup where the generator may run for hours near bedrooms or close neighbors. The 5-year warranty is also a strong match for buyers who plan to keep a generator for many seasons and want extra reassurance. With 9000 running watts and 11000 starting watts, it can handle demanding starts (like well pumps or larger HVAC components) as long as your transfer setup and load management are appropriate. The tradeoff is portability, at 216 lb it is more of a roll-into-place generator than something you’ll want to move often.

Choose the Westinghouse iGen11000DFc if you expect to reposition the generator more frequently or you care most about longer run time at everyday loads. It’s notably lighter at 187.4 lb, which can make a difference when navigating a garage, shed, or uneven driveway. Its standout practical advantage is 12 hours at 50% load, which is a common real-world range for running essentials during an outage, and can reduce refueling frequency overnight. The tradeoffs are a shorter 3-year warranty and slightly higher noise at 64 dB, which may be noticeable if it’s running close to living spaces. For RV or camping use, both are typically larger than most people want to transport regularly, but the Westinghouse’s lower weight can still be the easier of the two for occasional trips.

Verdict & recommendation

If your priority is longer warranty coverage and slightly lower noise for neighborhood-friendly home backup, the DuroMax XP11000iH is the more comfort-focused pick. If your priority is easier handling plus longer run time at typical mid-level loads, the Westinghouse iGen11000DFc makes a strong case, especially for overnight outage coverage.

Because both are dual-fuel inverter generators delivering 9000 running watts and 11000 starting watts, the decision is less about raw power and more about ownership tradeoffs: warranty and noise versus weight and 50% load runtime. Choose the one that best matches how often you’ll move it and how long you want to run between refuels.

Last updated February 23, 2026

  • Model XP11000iH
    Model XP11000iH

    DuroMax 9,000W Dual-Fuel Generator

    9000W
    Running
    61 dB
    Noise
    View details
  • Model iGen11000DFc
    Model iGen11000DFc

    Westinghouse 9,000W Dual-Fuel Generator

    9000W
    Running
    64 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 XP11000iHWestinghouse iGen11000DFc
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Dual-Fuel
InverterYesYes
Parallel capableYesYes
RV readyYesNo
Running watts
Winner: Winner: 9000 W
Winner: Winner: 9000 W
Starting watts
Winner: Winner: 11000 W
Winner: Winner: 11000 W
Noise (lower limit)
Winner: Winner: 61 dB
64 dB
Weight
216 lbs
Winner: Winner: 187.4 lbs
Run time @50% load
9 h
Winner: Winner: 12 h
Run time @25% load
18 h
17 h
Fuel tank
7.1 gal
7.9 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
26.2 x 25 x 29.6
30.2 x 25.2 x 26.6
Electrical
Voltage (AC)
120/240
120/240V 60 Hz
Voltage (DC)
48-58
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
3 %
<3% %
Engine
Engine
459 cc OHV 4-stroke
452 cc OHV 4-stroke
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
9000 W
9000 W
Starting watts
11000 W
11000 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
12 h
Run time @25% load
18 h
17 h
PropaneNot availableNot available
Running watts
8550 W
8100 W
Starting watts
10450 W
10000 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
4 h
Not available
Run time @25% load
8 h
9.8 h
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
EPA
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
true
UPC
811640017033
850032657754
Core / High-priority specs
Running Watts (Gasoline)
9000
9000
Running Watts (Propane)
8550
8100
Starting Watts (Gasoline)
11000
11000
Starting Watts (Propane)
10450
10000
Runtime @ 50% Load (Gasoline)
9
12
Runtime @ 50% Load (Propane)
4
Not available
Runtime @ 25% Load (Gasoline)
18
17
Runtime @ 25% Load (Propane)
8
9.8
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R)
1x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
459 cc OHV 4-stroke
452 cc OHV 4-stroke
Engine Displacement
459
452
Alternator Winding Material
Not available
Copper-clad aluminum windings
Engine Oil Type
10W-30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
18
17
Runtime @ 50% Load (Gasoline)
9
12
Runtime @ 50% Load (Propane)
4
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil, Electric, Remote
Recoil, Electric, Remote
Included Accessories
Funnel, tool kit, key fob, battery charger, propane hose, battery charging cables, and battery
Oil, funnel, tool kit, key fob, battery charger, propane hose, battery, and parallel cables
Warranty & identification
Commercial Warranty
5
3
Additional specs
Summary
The DuroMax XP11000iH is a 9,000-watt dual-fuel inverter generator built for home backup and jobsite power. Because it runs on either gasoline or propane, users can adapt to fuel availability rather than being locked into one source. The 11,000-watt peak output handles large appliances and power tools simultaneously, while the inverter technology keeps total harmonic distortion at just 3 percent. This matters for laptops, televisions, and other sensitive gear that can suffer damage from dirty power. At 61 decibels, the noise level sits between a normal conversation and a vacuum cleaner, making it tolerable in residential settings without constant ear protection.
The Westinghouse iGen11000DFc is a dual fuel inverter generator that delivers 11,000 peak watts and 9,000 running watts, suitable for home backup, camping, and more.
  • Most Powerful
    DuroMax XP11000iH
    9000W running
  • Quietest
    DuroMax XP11000iH
    61 dB
  • Longest Runtime
    Westinghouse iGen11000DFc
    12h at 50% load
Where to buy
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DuroMax XP11000iH
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Westinghouse iGen11000DFc
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