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Westinghouse WGen20000 - Spec Review

The Westinghouse WGen20000 is a powerful open frame generator with a rated wattage of 20000 W and a starting wattage of 28000 W.

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Description

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 wish to power almost all appliances in their house under any circumstances

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

The Westinghouse WGen20000 in use

The Westinghouse WGen20000

The Westinghouse WGen20000 houses a 999 cc OHV V-Twin engine, which provides 120/240V, consumes gasoline and delivers a running wattage of 20000W along with a peak wattage of 28000W.

Enjoying a noise rating of 74 dBA (just slightly more noisy than a shower), this generator gets running thanks to 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).

The WGen20000 generates a clean sine wave: providing <5% Total Harmonic Disruption (THD), delicate electronics can be plugged in its AC outlets safely.

Outlets

The control panel features the upcoming 9 AC outlets:

Two Duplexes 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle
Two 120/240V 30A (L14-30R) receptacles
Two 120/240V 50A (14-50R) receptacles

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, as the WGen20000 holds a twist-lock L14-30R receptacle, it is transfer switch ready: you'll easily be able to connect it to your breaker box to power your home during a power outage.

Portability

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 design is ideal for rough environments and demanding outdoor use.

As the generator's weight is 540 pounds, manually moving it or transporting it may be challenging, despite the fact that it is technically considered 'portable' (movable). Nevertheless, it can still be moved quite conveniently with the help of its wheel kit (⌀13") and its folding handle, once it is placed on the ground.

A lift hook located on the top of the frame offers an additional safety feature while facilitating the transport, loading and unloading of the generator.

Features

Panel of the Westinghouse WGen20000

The WGen20000's control panel

To help you monitor the WGen20000's status and activity, its control panel is equipped with a convenient meter showing you voltage, frequency and lifetime hours.

Thanks to a built-in fuel gauge, the generator allows you to quickly, conveniently and easily check the gas level at a glance.

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.

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.

Emissions

The Westinghouse WGen20000 is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.

Moreover, it features a spark arrestor and therefore, can be used in forested areas.

Product Videos

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).

  • Considering its dry weight of 540 pounds, the Westinghouse WGen20000 is one of the heavier generators producing between 14000 and 20000 running watts. If weight is your top priority, one of the champions in this power category is the Lifan LF15000-EPL, weighing just 358 pounds.
  • Since this generator is rated for a lowest possible noise of 74 dBA, it can be considered as one of the most quiet of the products generating similar power.
  • Thanks to an impressive running time of around 11 hours at 50% load, the WGen20000 benefits from a higher run time than many generators of a similar output. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the Lifan LF15000-EPL, with around 12 hours.
  • Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. 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 you wish to further improve in the area of fuel efficiency, the Lifan LF15000-EPL, which boasts with a gas consumption of only 1.17 GPH, may be the right generator for you.

Price comparison

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

STRENGTHS:
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • Clean sine wave
  • Quiet for its power (74 dBA)
  • High run time
AVERAGE SPECS:
  • Decent fuel efficiency
WEAKNESSES:
  • On the expensive side
  • No recoil back-up
  • No remote start
  • On the heavy side (540 lbs)

Do you own the Westinghouse WGen20000 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine999 cc OHV V-Twin
Starting systemElectric
Power
VoltageAC: 120/240V 60 Hz
Running watts20000 W
Starting watts28000 W
Running amps (@120/240V)166.7/83.3 amps
Peak amps (@120/240V)233.3/116.7 amps
Run time @50% load11 h
Run time @25% load17 h
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 2x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (L5-30R)
  • 2x 120/240V 30A (L14-30R)
  • 2x 120/240V 50A (14-50R)
DC outletsNo
Data centerVFT
IndicatorsNo
Fuel tank17.17 gal
Fuel gaugeYes
Misc
Weight540 lbs
Approx. dimensions (L x W x H)38 x 35 x 40.4 in
Noise (lower limit)74 dBA
THD< 5%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, battery, and wheel kit
Warranty3 years

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.

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About Westinghouse

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, several sources report that they are in many cases manufactured in China.

Warranty Information

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?
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
Hair dryer18001900
Electric grill16501650
Microwave (1000 watts)15001500
Clothes iron12701270
Laptop150150
Total15987 W17462 W
For workElectric welder90009000
Table saw18004500
Air compressor (1 hp)16006100
Grinder14002500
Demolition hammer12601260
Reciprocating saw730960
Bug zapper8080
Total15870 W20370 W

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