WE ARE PROUD TO BE INDEPENDENT AND IN NO WAY ASSOCIATED WITH MANUFACTURERS. TO STAY UNBIASED, WE DO NOT ACCEPT FREE PRODUCTS. WE EARN FROM ADVERTISING FEES PAID BY AMAZON OR NORTHERN TOOL ON QUALIFYING PURCHASES.

NorthStar c15000s - 13500/15000W Portable Generator With Electric Start And Honda Engine

The NorthStar c15000s is a powerful open frame generator with a rated wattage of 13,500 W and a starting wattage of 15,000 W. (Read full specs)

Compare ShortlistShortlistedRemoved from shortlist 0
NorthStar c15000s
Set Price Alert
×
Notify me when the price drops
Set an alert for the NorthStar c15000s - Current lowest price: $4,299.99
Price History
×
Price history for the NorthStar c15000s
Highest Price
$4,299.99
Lowest Price
$3,299.99
Current Price
$4,299.99

Description

Zoom on the NorthStar c15000s

In a few words, the NorthStar c15000s is a powerful portable generator perfectly suited for professionals who want to be able to deliver results, even during a power failure..

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed.

Power & Run Time

NorthStar c15000s runs on gasoline, powered by a 688 cc Honda GX690 OHV V-Twin engine, delivering 120/240V, boasting a running wattage of 13,500W alongside a starting wattage of 15,000W.

Rated for 73 dBA (just slightly more noisy than a dishwasher), the generator's starting mechanism relies on a straightforward and intuitive electric starter (battery included).

With a full tank, the c15000s can operate for around 10.6 hours at 50% load (fuel consumption around 1.13 GPH), thanks to its fuel capacity of 12 gallons.

The c15000s produces a clean sine wave: thanks to a <5% Total Harmonic Distortion (THD), your sensitive electronics can be safely plugged in the AC outlets.

Outlets

The control panel includes the following 9 AC outlets:

Three Duplexes 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle
120/240V 30A (L14-30R) receptacle
120/240V 60A (14-60R) receptacle

This NorthStar generator features an L5-30R receptacle, enabling an easy RV connection via an L5-30P to TT-30R adaptor. However, it is still not quite RV ready. Besides, the c15000s's twist-lock L14-30R receptacle makes it transfer switch ready, enabling hassle-free connection to your breaker box for powering your home during outages.

Portability

With a size of L43 x W36 x H35 in, the NorthStar c15000s features an open frame design, providing stability and simplified maintenance access to components, enhancing air circulation. The design is ideal for rough environments and demanding outdoor use.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 390 lbs make it incredibly difficult to manually lift and transport. Still, once it is on the ground, its wheel kit (⌀10") and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.

Features

Panel of the NorthStar c15000s

The c15000s's control panel

To help you monitor the c15000s's status and activity, the unit's control panel is equipped with a digital display that provides extensive information on the generator (more information about it below).

Security-wise, this product benefits from an automatic low oil shut-off and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.

It also includes a carbon monoxide sensor. This sensor is designed to monitor the level of carbon monoxide present during the generator's operation. If the generator is positioned incorrectly and carbon monoxide levels rise to an unsafe level, the generator will automatically shut down.

In addition to the standard documentation and owner's manual (opens in a new tab) for prompt setup, NorthStar has also included a funnel in the packaging of the c15000s.

Full-Featured Display

The Home, Service, and Diagnostic screens of the display

The excellent digital display

The unit is fitted with a colored, multi-function LCD display that offers simple, yet incredinbly exhaustive, at-a-glance monitoring. It features 3 screens:

  • Home: Gives you information about the load that is connected, fuel level, and total runtime of the generator
  • Service: Displays maintenance intervals and the time remaining before each service is due
  • Diagnostic: Provides various electrical data, such as voltage, current, and frequency

The NorthStar c15000s versus other generators

The following charts are provided to give you an idea of how some of the key specs of the NorthStar c15000s compare to generators of similar power (between 10000 and 14000 W).

  • With its weight of 390 lbs, the NorthStar c15000s is one of the heavier generators in the 10000-14000 rated wattage category. If weight is your top priority, one of the champions in this power category is the DuroStar DS13000MX, weighing just 209 pounds.
  • The generator can be considered average in its noise for its power category, as it is rated at 73 dBA. If noise is a concern for you, you could consider the Genmax GM12500iET, which is one of the least noisy generators in its power range, rated at 62 dBA.
  • Compared to devices of similar power, the c15000s stands out with one of the higher run times, lasting around 10.6 hours at 50% load. If prolonged run time is essential to your needs, you could consider the WEN TF1450X, which offers one of the highest autonomy among devices with similar power output, lasting around 12 hours.
  • Run time is crucial, but it heavily relies on the fuel tank's capacity. Thus, considering fuel efficiency alongside is essential. This generator is rather wasteful, compared to other devices within the aforementioned output range, when it comes to gasoline consumption, as it reaches roughly 1.13 GPH at a 50% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.68 GPH, the WEN TF1450X is a device you could look out for.

Price comparison

As you can see from these interactive charts, when compared to other 10000-14000W generators, the NorthStar c15000s is on the expensive side of the price range.

While certainly not the cheapest of its kind, purchasing it would most likely also mean enjoying the reliability of a high-end product.

The bottom line

STRENGTHS:
  • Excellent display, full of information
  • CO sensor
  • GFCI Outlets
  • Rare 60-amp outlet
  • Impressive quantity of AC outlets
  • 4 different AC outlet types
  • Honda engine
  • Electric start
  • Clean sine wave
  • High run time
  • Made in USA
AVERAGE SPECS:
  • Acceptable noise (73 dBA)
WEAKNESSES:
  • On the expensive side
  • No recoil back-up
  • No remote start
  • On the heavy side (390 lbs)
  • Low fuel efficiency

Do you own the NorthStar c15000s and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
Parallel capableNo
RV readyNo
FuelGasoline
Engine688 cc Honda GX690 OHV V-Twin
Starting systemElectric
Warranty4 years
Power
VoltageAC: 120/240V 60 Hz
Running watts13,500 W
Starting watts15,000 W
Running amps (@120/240V)112.5/56.3 amps
Peak amps (@120/240V)125/62.5 amps
Run time @50% load10.6 h
Run time @25% loadUnknown
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 3x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (L5-30R)
  • 1x 120/240V 30A (L14-30R)
  • 1x 120/240V 60A (14-60R)
DC outletsNo
Data centerPower output, fuel level, lifetime run hours, voltage and frequency
IndicatorsNo
Fuel tank12 gal
Fuel gaugeDigital
Misc
Weight390 lbs
Approx. dimensions (L x W x H)43 x 36 x 35 in
Noise (lower limit)73 dBA
THD< 5%
ComplianceCARB, EPA
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedFunnel, battery, and wheel kit
Country of originUSA
SeriesCommercial-Grade
Other model numbers1654406
UPC840321737861

We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.

Spec Improvement×

This form does not send us any personal data (not even your IP address)

About NorthStar

NorthStar is a brand of outdoor power equipment trademarked and sold by the Northern Tool + Equipment company which has been based in Burnsville, Minnesota, USA since being founded in 1981. NorthStar products include log splitters, portable generators, air compressors, and pressure washers. Their line of commercial-grade portable generators is manufactured in the US. With many units powered by Honda engines, NorthStar outdoor power tools make up a large percentage of the product line for the fast-growing Northern Tool company.

Warranty Information

The NorthStar c15000s is covered under a warranty for up to 4 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of NorthStar generators, please contact the NorthStar Customer Support: 1-800-270-0810.

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizer.
ItemRunning WattsStarting Watts
At homeSump pump (1/2 hp)10502150
Furnace fan (1/2 hp)8752350
Refrigerator (energy star)1921192
Clothes dryer54006750
Electric range21002100
Vacuum cleaner10751175
Radio100100
Total10792 W12267 W
For workElectric welder90009000
Grinder14002500
Electric fence (25 miles)250250
Bug zapper8080
Total10730 W11830 W

Couldn't find the right answer for you? Ask your own question.

Ask a question

Your name and email address will not be publicly published. We only need them to be able to answer you directly

Leave a review

Your total score

Generator Bible
Logo
Compare items
  • Total (0)
Compare

You can compare as many generators as you wish. However, for the best results, we recommend you to compare only 2 generators at a time.

0