Westinghouse WGen20000TFc - 20000/28000W Tri Fuel Generator With Remote Start

The Westinghouse WGen20000TFc is a powerful open frame tri-fuel generator with a rated wattage of 20,000 W and a starting wattage of 28,000 W. (Read full specs)

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Zoom on the Westinghouse WGen20000TFc

In a few words, the Westinghouse WGen20000TFc is a powerful portable generator perfectly suited for:

  • 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 following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device.

Power & Run Time

The Westinghouse WGen20000TFc in use

The Westinghouse WGen20000TFc

The Westinghouse WGen20000TFc delivers 120/240V and is equipped with a tri-fuel technology, enabling it to operate on gasoline, propane, or natural gas. When powered by gasoline, it achieves a running wattage of 20,000W and a peak wattage of 28,000W. Switching to propane provides 18,000 rated watts and 25,500 peak watts, while natural gas operation delivers 16,000W of rated wattage and 22,400W of starting wattage.

Operating with a noise level of 79 dBA (less noisy than a dishwasher), the generator starts up via a convenient and easy-to-use electric starter (battery included). In addition, the WGen20000TFc also supports remote starting, enhancing user convenience (key fob included).

Regarding its running time, the WGen20000TFc, with a 17.17 gallons fuel tank, can operate for around 10.5 hours at 50% load with a full gasoline tank (with fuel consumption estimated at around 1.64 gallons per hour). It also offers around 2.5 hours (on a 20 lbs tank - propane consumption around 1.88 GPH) of operation when using propane.

The <5% Total Harmonic Distortion (THD) of the WGen20000TFc ensures a clean sine wave output, providing a secure power source for your sensitive electronics through its AC outlets.


The control panel includes the following 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

Even though this Westinghouse generator isn't quite RV Ready, its L5-30R receptacle allows an easy RV connection via an L5-30P to TT-30R adaptor. Besides, since it boasts a twist-lock L14-30R receptacle, the WGen20000TFc is engineered to be transfer switch ready, ensuring easy integration with your breaker box to provide backup power to your home during outages.

Westinghouse's ST Switch Outlet

Picture of the ST Switch outlet

The ST Switch outlet

The WGen20000TFc 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 WGen20000TFc 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.


At L38 x W35 x H40.4 in, the Westinghouse WGen20000TFc boasts a traditional open frame structure, ensuring stability and allowing for convenient maintenance access to components, promoting air circulation. This type of design is ideal for tough environments and heavy outdoor use.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 557 lbs make it incredibly difficult to manually lift and transport. However, the limited maneuverability is remedied with its wheel kit (⌀13") and its folding handle, facilitating convenient shifting once the generator is positioned 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.


Panel of the Westinghouse WGen20000TFc

The WGen20000TFc's control panel

To facilitate status and activity monitoring, a convenient meter, providing voltage, frequency, and lifetime hours data are embedded in the control panel of the WGen20000TFc.

The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.

As far as security is concerned, the generator comes with an overload protection (circuit breaker) and an automatic low oil shut-off, providing 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.

Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Westinghouse WGen20000TFc also is packed along with the following accessories: tool kit, natural gas hose with NPT adapter, battery charger, propane hose, key fob, funnel and oil.

The Westinghouse WGen20000TFc versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Westinghouse WGen20000TFc compare to generators of similar power (between 14000 and 20000 W).

  • Weighing 557 lbs, the Westinghouse WGen20000TFc is one of the heaviest generators within the 14000-20000 rated wattage bracket. If weight is an important consideration for you, the Westinghouse WGen14500TFc stands out as one of the top contenders in this power category, with a dry weight of 348.3 pounds.
  • When compared to other units producing a similar running wattage, this generator and its lowest emitted noise of 79 dBA stand out for being on the louder side. If noise emissions are one of your priorities, you may be interested in the Westinghouse WGen20000, one of the least noisy generators similarly powerful as this one, rated for 74 dBA.
  • Since the WGen20000TFc boasts with a run time of around 10.5 hours at 50% load, it can be safely judged as a device of a higher run time than most generators of a comparable 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 Westinghouse WGen20000, with around 11 hours.
  • Run time is a key metric, but it's dependent on the generator's fuel capacity. Therefore, discussing fuel efficiency is necessary to get the full picture. As this generator uses an estimated 1.64 GPH (gallon per hour) at a 50% load, it finds itself in the average gasoline consumption range of similar products. If you wish to get a unit of similar power, but with one of the best fuel efficiency, you could consider the Westinghouse WGen14500TFc, which has an impressively low fuel consumption of 1.05 GPH.

Price comparison

As you can see from these interactive charts, when compared to other 14000-20000W multi-fuel generators, the Westinghouse WGen20000TFc is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

  • In the expected price range
  • Tri-fuel
  • CO Sensor
  • Several accessories included
  • GFCI Outlets
  • Impressive quantity of AC outlets
  • 4 different AC outlet types
  • Remote start
  • Clean sine wave
  • Smart Switch Ready
  • High run time
  • Decent fuel efficiency
  • No recoil back-up
  • On the heavy side (557 lbs)
  • On the noisy side (79 dBA)

Do you own the Westinghouse WGen20000TFc and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

Parallel capableNo
RV readyNo
FuelTri-Fuel (gasoline/propane/natural gas)
Engine999 cc OHV V-Twin
Starting systemElectric, Remote
Warranty3 years
VoltageAC: 120/240V 60 Hz
Running watts20,000 W18,000 W16,000 W
Starting watts28,000 W25,500 W22,400 W
Running amps (@120/240V)166.7/83.3 amps150/75 amps133.3/66.7 amps
Peak amps (@120/240V)233.3/116.7 amps212.5/106.3 amps186.7/93.3 amps
Run time @50% load10.5 h2.5 hN/A
Run time @25% load13 h3 hN/A
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
Fuel tank17.17 gal
Fuel gaugeYes
Weight557 lbs
Approx. dimensions (L x W x H)38 x 35 x 40.4 in
Noise (lower limit)79 dBA
THD< 5%
ComplianceEPA, ANSI/PGMA G300-2018
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, 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.

Spec Improvement×

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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, they are in many cases manufactured in China.

Warranty Information

The Westinghouse WGen20000TFc 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 size calculator.
ItemRunning WattsStarting Watts
At homeElectric fry pan15001500
Microwave (1000 watts)15001500
AC (10,000 BTU)15002200
Dish washer15003000
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
Demolition hammer12601260
Reciprocating saw730960
Bug zapper8080
Total15870 W20370 W

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