Remote start + CO sensor
Zoom on the Westinghouse WGen20000
In a nutshell, the Westinghouse WGen20000 is a powerful portable generator mostly geared towards:
- Professionals who want to be able to deliver results, even during a power failure
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
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 is powered by a 999 cc OHV V-Twin engine. It delivers 120/240V, runs on gasoline and offers a running wattage of 20,000W as well as 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.
With a noise rating of 74 dBA (just slightly more noisy than a shower), the generator features 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).
Sensitive electronics can be safely plugged in the AC outlets, as the WGen20000 produces a clean sine wave, with a <5% Total Harmonic Distortion (THD).
The control panel features 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, because the WGen20000 is equipped with a twist-lock L14-30R receptacle, it is transfer switch ready: it can power your home during a power outage, as it can be easily connected to your breaker box to power your household.
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 a conventional, open frame design, of the following dimensions: L38 x W35 x H40.4 in, which offers support and allows it to be raised above ground level. The featured design is ideal for the outdoors and all tough environments.
Although this generator is technically considered 'portable' (in the sense that it can be moved), its 540 lbs make it incredibly difficult to manually lift and transport. However, its challenging mobility is solved by its wheel kit (⌀13") and its folding handle, which will ease its displacement, once it is on the floor.
Further safety during transport, loading and unloading of the device is provided by a lift hook, which is placed on the top of the generator's frame.
The WGen20000's control center features a convenient meter, which displays voltage, frequency and lifetime hours to aid you with the monitoring of 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.
From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.
Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the Westinghouse WGen20000 also comes with some accessories: oil, funnel and tool kit are included.
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, so it is adequate for use 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 this interactive chart, 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
- 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
|Engine||999 cc OHV V-Twin|
|Voltage||AC: 120/240V 60 Hz|
|Running watts||20,000 W|
|Starting watts||28,000 W|
|Running amps (@120/240V)||166.7/83.3 amps|
|Peak amps (@120/240V)||233.3/116.7 amps|
|Run time @50% load||11 h|
|Run time @25% load||17 h|
|Automatic Voltage Regulation||Yes|
|AC outlets|| |
|Fuel tank||17.17 gal|
|Approx. dimensions (L x W x H)||38 x 35 x 40.4 in|
|Noise (lower limit)||74 dBA|
|Security||Low oil and overload protection|
|Neutral||Bonded to frame|
|Accessories included||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?
|Item||Running Watts||Starting Watts|
|At home||Microwave (1000 watts)||1500||1500|
|AC (10,000 BTU)||1500||2200|
|Electric fry pan||1500||1500|
|Sump pump (1/2 hp)||1050||2150|
|Refrigerator (energy star)||192||1192|
|Total||15997 W||17497 W|
|For work||Electric welder||9000||9000|
|Air compressor (1 hp)||1600||6100|
|Total||15870 W||20370 W|
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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