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

  • NorthStar c15000s
  • WEN TF1050iX
  • Model c15000s
    Model c15000s

    NorthStar 13,500W Gas Generator

    13500W
    Running
    73 dB
    Noise
    View details
  • Model TF1050iX
    Model TF1050iX

    WEN 8,550W Tri-Fuel Generator

    8550W
    Running
    66 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
SpecificationNorthStar c15000sWEN TF1050iX
General
Product type
Generator
Generator
Fuel
Gasoline
Tri-Fuel
InverterNoYes
Parallel capableNoYes
RV readyNoYes
Running watts
Winner: Winner: 13500 W
8550 W
Starting watts
Winner: Winner: 15000 W
10500 W
Noise (lower limit)
73 dB
Winner: Winner: 66 dB
Weight
390 lbs
Winner: Winner: 209.4 lbs
Run time @50% load
Winner: Winner: 10.6 h
10.5 h
Run time @25% load
Not available
Not available
Fuel tank
12 gal
7.1 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
43 x 36 x 35
30.1 x 26.3 x 28.8
Electrical
Voltage (AC)
120/240V 60 Hz
120/240
Voltage (DC)
Not available
5
GFCI outletsYesNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<5% %
1.2 %
Engine
Engine
688 cc Honda GX690 OHV V-Twin
457 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Electric
Recoil, Electric
Warranty
Warranty
4 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
13500 W
8550 W
Starting watts
15000 W
10500 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
10.6 h
10.5 h
Run time @25% load
Not available
Not available
Natural gasNot availableNot available
Running watts
Not available
7500 W
Starting watts
Not available
8500 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
Not available
Not available
Run time @25% load
Not available
Not available
PropaneNot availableNot available
Running watts
Not available
8550 W
Starting watts
Not available
9450 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
Not available
5.8 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
false
true
Compliance
CARB, EPA
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
true
true
UPC
840321737861
Not available
Core / High-priority specs
Running Watts (Gasoline)
13500
8550
Running Watts (Propane)
Not available
8550
Running Watts (Natural Gas)
Not available
7500
Starting Watts (Gasoline)
15000
10500
Starting Watts (Propane)
Not available
9450
Starting Watts (Natural Gas)
Not available
8500
Runtime @ 50% Load (Gasoline)
10.6
10.5
Runtime @ 50% Load (Propane)
Not available
5.8
AC Outlet Types
3x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)1x 120/240V 60A (14-60R)
1x 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
Honda GX690 OHV V-Twin
OHV 4-stroke
Engine Displacement
688
457
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
10.6
10.5
Runtime @ 50% Load (Propane)
Not available
5.8
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Funnel, battery, and wheel kit
Funnel, tool kit, battery charger, propane hose, and battery
Warranty & identification
Residential Warranty
Not available
3
Commercial Warranty
4
3
Additional specs
Summary
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.
The WEN TF1050iX is an 8550-watt tri-fuel inverter generator that runs on gasoline, propane, or natural gas. This capacity sits at the threshold between mid-range jobsite power and whole-house backup. The inverter design delivers 1.2% THD, making it safe for laptops, televisions, and other sensitive electronics that would suffer damage from dirty power. Tri-fuel flexibility means you can match the available fuel source to your location or storage preference, though output varies by fuel type. On gasoline, the TF1050iX delivers its full 8550 running watts and 10500 starting watts. On propane, it maintains 8550 running watts but drops to 9450 starting watts. On natural gas, output falls to 7500 running watts and 8500 starting watts, a meaningful reduction if you depend on peak capacity. The 7.1-gallon fuel tank and 10.5-hour runtime at 50% load on gasoline mean you can run a moderate load overnight without refueling, though propane runtime drops to 5.8 hours at the same load. This generator bridges the gap between portable and stationary power, though its 209.4-pound weight requires serious planning for transport.
  • Most Powerful
    NorthStar c15000s
    13500W running
  • Quietest
    WEN TF1050iX
    66 dB
  • Longest Runtime
    NorthStar c15000s
    10.6h at 50% load
Where to buy
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NorthStar c15000s
Store links
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WEN TF1050iX
Store links
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