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

  • Genmax GM6000XiE
  • NorthStar c13000s
  • Model GM6000XiE
    Model GM6000XiE

    Genmax 5,250W Gas Generator

    5250W
    Running
    70 dB
    Noise
    View details
  • Model c13000s
    Model c13000s

    NorthStar 10,500W Gas Generator

    10500W
    Running
    72 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
SpecificationGenmax GM6000XiENorthStar c13000s
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesNo
Parallel capableNoNo
RV readyNoNo
Running watts
5250 W
Winner: Winner: 10500 W
Starting watts
6000 W
Winner: Winner: 13000 W
Noise (lower limit)
Winner: Winner: 70 dB
72 dB
Weight
Winner: Winner: 106.9 lbs
387 lbs
Run time @50% load
9 h
Winner: Winner: 10.9 h
Run time @25% load
13 h
Not available
Fuel tank
3.8 gal
12 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
22.2 x 18.1 x 17.7
43 x 36 x 35
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
5
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
less than 3% %
<5% %
Engine
Engine
312 cc Dinking OHV 4-stroke
Honda GX630 OHV V-Twin
Alternator
Not available
Not available
Starting system
Recoil, Electric
Electric
Warranty
Warranty
1 years
4 years
Power by fuel
GasolineNot availableNot available
Running watts
5250 W
10500 W
Starting watts
6000 W
13000 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
10.9 h
Run time @25% load
13 h
Not available
Other
Data center
Not available
Not available
Indicators
true
false
Compliance
EPA, ANSI/PGMA G300-2023
CARB, EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Bonded to frame
Not available
UPC
860012189717
840321737458
Core / High-priority specs
Running Watts (Gasoline)
5250
10500
Starting Watts (Gasoline)
6000
13000
Runtime @ 50% Load (Gasoline)
9
10.9
Runtime @ 25% Load (Gasoline)
13
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R)
3x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 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 V-Twin
Engine Displacement
312
688
Engine Oil Type
SAE 10W/30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
13
Not available
Runtime @ 50% Load (Gasoline)
9
10.9
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
Included Accessories
Funnel, tool kit, battery, wheel kit
Funnel, battery, and wheel kit
Additional specs
Summary
The Genmax GM6000XiE is a 5250-watt inverter generator built around a 312cc OHV engine. It delivers 6000 watts at startup, enough to handle the initial surge of refrigerators, air compressors, and power tools. The inverter produces less than 3% THD, meaning laptops and phones charge safely. At 106.9 lbs with wheels included, it sits between grab-and-go portability and serious job-site power.
The NorthStar c13000s is a commercial-grade portable generator designed for demanding jobsites, offering 13,000 surge watts and 10,500 rated watts of power.
  • Most Powerful
    NorthStar c13000s
    10500W running
  • Quietest
    Genmax GM6000XiE
    70 dB
  • Longest Runtime
    NorthStar c13000s
    10.9h at 50% load
Where to buy
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Genmax GM6000XiE
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NorthStar c13000s
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