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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 summary, the Westinghouse WGen20000 is a powerful portable generator especially useful for:

  • Professionals in need of safely powering high-intensity work or lighting equipment
  • Prudent homeowners who want a backup power source in case of a power outage

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 in use

The Westinghouse WGen20000

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 20000W as well as a peak wattage of 28000W.

At a noise rating of 74 dBA (just slightly more noisy than a vacuum cleaner), the generator is started via a convenient and easy-to-use electric starter (battery included).

With a full tank, the WGen20000 can operate for around 11 hours at 50% load (fuel consumption around 1.56 GPH), thanks to its fuel capacity of 17.17 gallons.

Sensitive electronics can be safely plugged in the AC outlets, as the WGen20000 produces a clean sine wave, with a <5% Total Harmonic Disruption (THD).

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 it features a twist-lock L14-30R receptacle, the WGen20000 is transfer switch ready: in case of a power outage, you will be easily able to connect it to a breaker box and power your household.

Portability

With its dimensions of L38 x W35 x H40.4 in, the conventional, open frame design of the Westinghouse WGen20000 offers stability and allows the generator to be raised above ground level. The featured design is ideal for the outdoors and all tough environments.

Since the generator weighs 540 lbs, it will be incredibly difficult to manually lift it and transport it, even though it is technically considered to 'be portable' (in the sense that it is movable). Still, once it is on the ground, its wheel kit (⌀13") and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.

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

The control panel of the WGen20000 includes a convenient meter, which displays voltage, frequency and lifetime hours, helpful for the monitoring of its status and activity.

A built-in fuel gauge allows for a quick, easy and convenient check of the fuel level of the generator.

As far as security is concerned, the generator can be used with a peace of mind, as it features an overload protection (circuit breaker) and an automatic low oil shut-off.

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. It can therefore be sold and purchased in all 50 states, including California.

Moreover, 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).

  • 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 matters to you, one of the champions in this power range is the Generac GP15000E with only 363 pounds.
  • The WGen20000 provides one of the highest run time among similarly powerful devices, reaching around 11 hours at 50% load.
  • 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. At an estimated fuel consumption of 1.56 GPH (gallon per hour) at 50% load, this generator is one of the most fuel efficient units within its wattage category.

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
  • High run time
  • Fuel efficient
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 sizing calculator.
ItemRunning WattsStarting Watts
At homeAC (10,000 BTU)15002200
Dish washer15003000
Microwave (1000 watts)15001500
Electric fry pan15001500
Sump pump (1/2 hp)10502150
Refrigerator (energy star)1921192
Clothes dryer54006750
Electric range21002100
Vacuum cleaner10751175
Security system180180
Total15997 W17497 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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