Remote start + CO sensor
Zoom on the Westinghouse WGen20000
In a nutshell, the Westinghouse WGen20000 is a powerful portable generator mostly geared towards:
- Professionals in need of safely powering high-intensity work or lighting equipment
- Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.
Power & Run Time
The Westinghouse WGen20000's core is the 999 cc OHV V-Twin engine, which runs on gasoline. With an output of 120/240V, it provides a running wattage of 20,000W and a peak wattage of 28,000W. The impressive running wattage makes this unit the biggest portable generator currently on the market, along with its cousin, the Westinghouse WGen20000c.
The generator is rated for a noise of 74 dBA (just slightly more noisy than a vacuum cleaner). Its starting mechanism is based on a simple and elegant electric starter (battery included).
With a fuel capacity of 17.17 gallons, the WGen20000 may run for around 11 hours at 50% load with a full tank (fuel consumption around 1.56 GPH).
Delicate electronics can be plugged in an AC outlets safely, as the WGen20000 generates a clean sine wave, reaching a <5% Total Harmonic Distortion (THD).
The control panel provides the upcoming 9 AC outlets:
While this Westinghouse 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, due to the featured twist-lock L14-30R receptacle, the WGen20000 is transfer switch ready: you may connect it to a breaker box to power your household during a power outage.
Westinghouse's ST Switch Outlet
The WGen20000 is what Westinghouse calls Smart Switch Ready. This means that it features a special outlet that allows for an automatic transfer of power in case of a power outage.
To benefit from this feature, you'll need the Westinghouse ST Switch (opens in a new tab), which is not included with the generator.
Simply put, the ST Switch is a cost-effective and versatile portable automatic transfer switch, which can be installed quickly and easily, without an electrician.
Plug the ST Switch into one of your household 120V outlets, plug your appliances to the ST Switch, and connect the WGen20000 to the ST Switch via the special outlet and a 120V cord. The generator will automatically turn on when the power goes out, and automatically turn off when the power returns.
The Westinghouse WGen20000 has the following dimensions: L38 x W35 x H40.4 in. In combination with its conventional, open frame design, they provide support and allow the generator to be raised above ground level. The device has been designed for tough environments and demanding outdoor use.
Even though this device may be technically portable (as in movable), manipulation and transportation without special equipment can be a challenge, as it weighs 540 pounds. However, this lack of maneuverability is compensated by its wheel kit (⌀13") and its folding handle, with which you can conveniently shift it, once it's on the ground.
In addition, the device is equipped with a lift hook on the top of its frame, which provides extra safety during the loading, unloading and transport of the generator.
The WGen20000 and its control panel include a convenient meter, which displays voltage, frequency and lifetime hours. This feature comes handy when monitoring its status and activity.
The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.
As for its security measures, the device features an overload protection (circuit breaker) and an automatic low oil shut-off, letting you use it with a peace of mind.
Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Westinghouse WGen20000's package also includes these accessories: tool kit, oil and funnel.
The Westinghouse WGen20000 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.
However, it features a spark arrestor, making it usable in forested areas.
The Westinghouse WGen20000 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Westinghouse WGen20000 compare to generators of similar power (between 14000 and 20000 W).
- At a dry weight of 540 pounds, the Westinghouse WGen20000 is one of the heavier devices which can produce between 14000 and 20000 running watts. In terms of weight, one of the champions in their power range is the Generac GP15000E, standing at just 363 lbs.
- The WGen20000 provides one of the highest run time among similarly powerful devices, reaching around 11 hours at 50% load.
- The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. As this generator uses an estimated 1.56 GPH (gallon per hour) at a 50% load, it finds itself in the average gasoline consumption range of similar products. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Generac GP15500EFI. With a fuel consumption of as little as 1.29 GPH, it is one of the most efficient generators currently on the market.
As you can see from these interactive charts, when compared to other 14000-20000W generators, the Westinghouse WGen20000 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
- Several accessories included
- GFCI Outlets
- Impressive quantity of AC outlets
- 4 different AC outlet types
- Electric start
- Clean sine wave
- Smart Switch Ready
- High run time
- Decent fuel efficiency
- On the expensive side
- No recoil back-up
- No remote start
- Not CARB-compliant
- On the heavy side (540 lbs)
Features and Specifications
|999 cc OHV V-Twin
|AC: 120/240V 60 Hz
|Running amps (@120/240V)
|Peak amps (@120/240V)
|Run time @50% load
|Run time @25% load
|Automatic Voltage Regulation
|Approx. dimensions (L x W x H)
|38 x 35 x 40.4 in
|Noise (lower limit)
|Low oil and overload protection
|Bonded to frame
|Oil, funnel, tool kit, battery, and wheel kit
Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.
The US based Westinghouse Outdoor Power Equipment is a legacy subsidiary of the Westinghouse Electric Corporation, founded in 1886. While the company has been acquired and merged into the American CBS, the Westinghouse name remains as the brand name for many of their electrical solutions, which stretch across the scale from power plants to portable generators. Portable generators – the main product of the Outdoor Power Equipment branch of Westinghouse – used to be manufactured by Westpro Power Systems, which was bought in 2016 by Midwest Equipment. Lawn equipment, such as trimmers and blowers, is also sold under the Westinghouse brand name. All of their products are designed in the US. However, they are in many cases manufactured in China.
The Westinghouse WGen20000 is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Westinghouse generators, please consult Westinghouse's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-855-944-3571.
Questions & Answers
What can it power?
|Sump pump (1/2 hp)
|Furnace fan (1/2 hp)
|Refrigerator (energy star)
|Electric fry pan
|Air compressor (1 hp)
Can all of usable power be connected to the breaker panel using one cord ( 20k out from one 50 amp outlet to breaker panel) (Asked March 18, 2023)
The maximum power you'll get out of a single 50A outlet is 240V*50A=12kW.
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