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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • DuroMax XP15000HXT
  • NorthStar c15000s
  • No image
    Model XP15000HXT

    DuroMax 12,000W Tri-Fuel Generator

    12000W
    Running
    78 dB
    Noise
    View details
  • Model c15000s
    Model c15000s

    NorthStar 13,500W Gas Generator

    13500W
    Running
    73 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 XP15000HXTNorthStar c15000s
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyYesNo
Running watts
12000 W
Winner: Winner: 13500 W
Starting watts
Winner: Winner: 15000 W
Winner: Winner: 15000 W
Noise (lower limit)
78 dB
Winner: Winner: 73 dB
Weight
Winner: Winner: 362 lbs
390 lbs
Run time @50% load
Winner: Winner: 12 h
10.6 h
Run time @25% load
17.9 h
Not available
Fuel tank
13.2 gal
12 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
36 x 33.2 x 32
43 x 36 x 35
Electrical
Voltage (AC)
120/240
120/240V 60 Hz
Voltage (DC)
Not available
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
12 %
<5% %
Engine
Engine
670 cc OHV 4-stroke, cast iron sleeve
688 cc Honda GX690 OHV V-Twin
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Electric
Warranty
Warranty
5 years
4 years
Power by fuel
GasolineNot availableNot available
Running watts
12000 W
13500 W
Starting watts
15000 W
15000 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
10.6 h
Run time @25% load
17.9 h
Not available
Natural gasNot availableNot 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 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
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
true
UPC
811640016852
840321737861
Core / High-priority specs
Running Watts (Gasoline)
12000
13500
Running Watts (Propane)
11400
Not available
Running Watts (Natural Gas)
10260
Not available
Starting Watts (Gasoline)
15000
15000
Starting Watts (Propane)
14250
Not available
Starting Watts (Natural Gas)
12825
Not available
Runtime @ 50% Load (Gasoline)
12
10.6
Runtime @ 50% Load (Propane)
2.8
Not available
Runtime @ 25% Load (Gasoline)
17.9
Not available
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)
3x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)1x 120/240V 60A (14-60R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
Honda GX690 OHV V-Twin
Engine Displacement
670
688
Cylinder Sleeve
cast iron sleeve
Not available
Alternator Winding Material
Copper windings
Not available
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
17.9
Not available
Runtime @ 50% Load (Gasoline)
12
10.6
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
Not available
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
Funnel, battery, and wheel kit
Warranty & identification
Commercial Warranty
Not available
4
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 NorthStar c15000s is a commercial-grade portable generator powered by a Honda GX690 OHV engine, delivering 15,000 surge watts and 13,500 rated watts. It features Quiet Armor Technology for reduced noise, a built-in battery charger/maintainer, and carbon monoxide detection with automatic shutdown for enhanced safety.
  • Most Powerful
    NorthStar c15000s
    13500W running
  • Quietest
    NorthStar c15000s
    73 dB
  • Longest Runtime
    DuroMax XP15000HXT
    12h at 50% load
Where to buy
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DuroMax XP15000HXT
Store links
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NorthStar c15000s
Store links
No links yet.
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