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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)

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NorthStar c15000s
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Price history for the NorthStar c15000s

Current price is in the high range.
Lowest price $3,299.99
Highest price $4,299.99
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 in need of safely powering high-intensity work or lighting equipment..

Over the following sections, you'll uncover its power characteristics, the selection of outlets it offers, its overall portability, and the supplementary features it includes.

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.

Operating with a noise level of 73 dBA (just slightly more noisy than a dishwasher), the generator starts up via an easy-to-use and reliable electric starter (battery included).

Equipped with a 12 gallons fuel tank, the c15000s ensures continuous operation for around 10.6 hours at 50% load with a full tank (fuel usage approximately 1.13 gallons per hour).

Sensitive electronics can be safely plugged in the AC outlets, as the c15000s produces a clean sine wave, with a <5% Total Harmonic Distortion (THD).

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

While this NorthStar generator is not RV Ready, its L5-30R receptacle can be used for a simple RV connection with an L5-30P to TT-30R adaptor. Besides, since it features a twist-lock L14-30R receptacle, the c15000s is tailored to be transfer switch ready, making it easy to connect it to your breaker box for home power support during outages.

Portability

Measuring L43 x W36 x H35 in, the classic open frame construction of the NorthStar c15000s provides stability while enabling convenient maintenance access to components and adequate air cooling. The generator is designed for outdoor use and demanding environments.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 390 lbs. Despite the restricted maneuverability, its wheel kit (⌀10") and its folding handle provides a solution, allowing for convenient shifting once the generator is positioned on the ground.

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).

From a security point of view, the generator is equipped with an automatic low oil shut-off and an overload protection (circuit breaker), giving you a peace of mind during use.

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.

Alongside the typical set of documentation and owner's manual (opens in a new tab) to assist with setup, NorthStar has 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).

  • Tipping the scales at 390 lbs, the NorthStar c15000s qualifies as one of the heavier options among generators rated between 10000 and 14000 watts. if you wish to prioritize weight, the Genmax GM12000XiT is one of the top contenders in its power category, weighing only 194 pounds.
  • As this generator can emit noise as low as 73 dBA, it finds itself in the average expected noise for this kind of power. If you wish to prioritize minimal noise, the Genmax GM12500iET stands out as one of the quietest options among generators of similar power, with a rating of 62 dBA.
  • The c15000s provides a higher run time than similarly powerful devices, reaching around 10.6 hours at 50% load. If you wish to prioritize autonomy, the WEN TF1450X shines as one of the top contenders, offering one of the highest run times among generators with similar power output, totaling around 12 hours.
  • While run time matters, it's heavily influenced by the fuel tank's capacity. Hence, it's important to consider fuel efficiency alongside. This generator is somewhat less fuel-efficient than devices of comparable output: its estimated fuel consumption reaches 1.13 GPH at a 50% load. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the WEN TF1450X. With a fuel consumption of as little as 0.68 GPH, it is one of the most efficient generators currently on the market.

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×

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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 size calculator.
Item Running Watts Starting Watts
At home Electric fry pan 1500 1500
Microwave (1000 watts) 1500 1500
Dish washer 1500 3000
AC (10,000 BTU) 1500 2200
Sump pump (1/2 hp) 1050 2150
Refrigerator (energy star) 192 1192
Electric range 2100 2100
Clothes iron 1270 1270
Security system 180 180
Total 10792 W 12292 W
For work Electric welder 9000 9000
Grinder 1400 2500
Drain cleaner 250 250
Bug zapper 80 80
Total 10730 W 11830 W

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