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Westinghouse WGen6000DFc EFI vs DuroMax XP5500HX

Westinghouse WGen6000DFc EFI vs DuroMax XP5500HX

Comparing the Westinghouse WGen6000DFc EFI and DuroMax XP5500HX dual-fuel generators. See which fits your power needs, budget, and runtime priorities.

  • DuroMax XP5500HX
  • Westinghouse WGen6000DFc EFI

Comparison Overview

The Westinghouse WGen6000DFc EFI delivers 6000 running watts and 7500 starting watts, giving it a significant power advantage over the DuroMax XP5500HX, which provides 4500 running watts and 5500 starting watts. That 1500-watt gap in running capacity means the Westinghouse can handle heavier loads, like running multiple large appliances simultaneously during a power outage. Its EFI (Electronic Fuel Injection) system also improves fuel efficiency and cold-start reliability compared to traditional carbureted engines.

The DuroMax fights back in a few important areas. It offers a notably longer runtime at 25% load, stretching to 19 hours compared to the Westinghouse's 14 hours. It also comes with a 5-year warranty, nearly doubling the Westinghouse's 3-year coverage. At 128 pounds, it's a bit lighter than the 139-pound Westinghouse, making it slightly easier to move around. Noise levels are nearly identical at 69 dB versus 68 dB.

Both generators run on gasoline or propane, giving you flexibility during fuel shortages. If you need more raw power for whole-home backup or job site tools, the Westinghouse is the stronger pick. If you value longer runtime, a better warranty, and don't need as much wattage, the DuroMax is a compelling, potentially more affordable option.

Key takeaways

  • Westinghouse delivers 6000 running watts, 1500 more than the DuroMax's 4500 watts
  • DuroMax offers 19 hours of runtime at 25% load versus Westinghouse's 14 hours
  • DuroMax includes a 5-year warranty, compared to Westinghouse's 3-year coverage
  • Both generators support dual-fuel operation on gasoline or propane
  • Westinghouse features EFI for improved fuel efficiency and easier cold starts
  • DuroMax weighs 128 pounds, 11 pounds lighter than the 139-pound Westinghouse

Best use cases

Choose the Westinghouse WGen6000DFc EFI if you need to power a home during extended outages and your electrical demands are on the higher side. With 6000 running watts, you can comfortably run a refrigerator, sump pump, window AC unit, and several lights and devices at the same time without worrying about overloading the generator. The 7500 starting watts also give you plenty of headroom for appliances with high surge demands, like well pumps or larger power tools. The EFI system is a real practical benefit: it means more reliable starts in cold weather and slightly better fuel economy over the life of the generator. If you're using this on a job site where you need to run a circular saw, air compressor, or other demanding tools alongside smaller equipment, the extra wattage makes a real difference.

Choose the DuroMax XP5500HX if your power needs are more moderate and you'd rather prioritize runtime and long-term peace of mind. At 4500 running watts, it can still handle essential home circuits during an outage, covering your fridge, lights, phone chargers, and a few smaller appliances without issue. The 19-hour runtime at 25% load is excellent for overnight use, meaning you can start it in the evening and not worry about refueling until morning. The 5-year warranty is a standout feature, especially for buyers who want extra protection on a machine that may sit idle for months between uses. It's also 11 pounds lighter, which matters if you're loading it into a truck bed or moving it around a property regularly. The tradeoff is clear: you're giving up roughly a third of the Westinghouse's running wattage, so you'll need to be more selective about what you plug in at any given time.

Verdict & recommendation

If your priority is maximum power output and the ability to run heavy loads without compromise, the Westinghouse WGen6000DFc EFI is the better fit. Its 6000 running watts and EFI technology make it a strong choice for serious home backup and demanding job site work. If you value longer runtime per tank, a more generous warranty, and your electrical needs stay under 4500 watts, the DuroMax XP5500HX offers a practical balance of performance and longevity protection.

Neither generator is a bad choice. Both offer dual-fuel flexibility and similar noise levels. The decision really comes down to how much power you actually need versus how long you need it to run and how much warranty coverage matters to you. Buyers who aren't sure should add up the wattage of the devices they plan to run simultaneously, as that single calculation will likely make the choice obvious.

Last updated March 18, 2026

  • Model XP5500HX
    Model XP5500HX

    DuroMax 4,500W Dual-Fuel Generator

    4500W
    Running
    69 dB
    Noise
    View details
  • Model WGen6000DFc EFI
    Model WGen6000DFc EFI

    Westinghouse 6,000W Dual-Fuel Generator

    6000W
    Running
    68 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 XP5500HXWestinghouse WGen6000DFc EFI
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Dual-Fuel
InverterNoNo
Parallel capableNoNo
RV readyNoYes
Running watts
4500 W
Winner: Winner: 6000 W
Starting watts
5500 W
Winner: Winner: 7500 W
Noise (lower limit)
69 dB
Winner: Winner: 68 dB
Weight
Winner: Winner: 128 lbs
139 lbs
Run time @50% load
9 h
Winner: Winner: 9.5 h
Run time @25% load
19 h
14 h
Fuel tank
4 gal
4.75 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
23 x 25 x 22
25 x 24 x 23
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
5
Not available
GFCI outletsYesNo
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
23 %
Engine
Engine
210 cc OHV 4-stroke, cast iron sleeve
298 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
4500 W
6000 W
Starting watts
5500 W
7500 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
14 h
PropaneNot availableNot available
Running watts
4275 W
5400 W
Starting watts
5225 W
6750 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
Not available
Run time @25% load
15 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
Floating
UPC
811640016203
850060639029
Core / High-priority specs
Running Watts (Gasoline)
4500
6000
Running Watts (Propane)
4275
5400
Starting Watts (Gasoline)
5500
7500
Starting Watts (Propane)
5225
6750
Runtime @ 50% Load (Gasoline)
9
9.5
Runtime @ 50% Load (Propane)
8
Not available
Runtime @ 25% Load (Gasoline)
19
14
Runtime @ 25% Load (Propane)
15
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120/240V 30A (L14-30R)
1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R); 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
210 cc OHV 4-stroke, cast iron sleeve
OHV 4-stroke, cast iron sleeve
Engine Displacement
210
298
Cylinder Sleeve
cast iron sleeve
cast iron sleeve
Alternator Winding Material
Copper windings
Not available
Engine Oil Type
10W-30
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
19
14
Runtime @ 50% Load (Gasoline)
9
9.5
Runtime @ 50% Load (Propane)
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
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
Not available
3
Commercial Warranty
5
3
Additional specs
Summary
The DuroMax XP5500HX is a 4,500-watt dual-fuel generator built for homeowners, job sites, and outdoor events. Running on either gasoline or propane, it delivers 5,500 peak watts at startup, enough to power refrigerators, air conditioning units, power tools, and multiple devices simultaneously. The dual-fuel design eliminates fuel sourcing constraints. At 25% load on gasoline, the unit runs for 19 hours before refueling, stretching a single tank across an entire workday or overnight camping trip. This runtime advantage makes it practical for extended outages or remote projects where frequent refueling would interrupt operations.
The Westinghouse WGen6000DFc EFI is a dual-fuel portable generator that delivers 7,500 peak watts and 6,000 running watts on gasoline, and 6,750 peak watts and 5,400 running watts on propane. It features electronic fuel injection for easy starting, a CO sensor for safety, and is transfer switch ready, making it suitable for home backup, RVs, and job sites.
  • Most Powerful
    Westinghouse WGen6000DFc EFI
    6000W running
  • Quietest
    Westinghouse WGen6000DFc EFI
    68 dB
  • Longest Runtime
    Westinghouse WGen6000DFc EFI
    9.5h at 50% load
Where to buy
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DuroMax XP5500HX
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Westinghouse WGen6000DFc EFI
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