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Westinghouse 13500W Tri-Fuel Portable Generator or Westinghouse 12500-Watt Dual-Fuel Generator? Which Westinghouse Model to Buy

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When you compare the westinghouse 13500 peak watt tri fuel vs 12500 watt dual fuel, you see two heavy-duty options for home backup. Both models offer remote electric start, transfer switch readiness, and similar outlet configurations. They share identical physical dimensions and start mechanisms. The main difference lies in fuel flexibility and power output. The tri-fuel model supports natural gas and delivers higher peak wattage, while the dual-fuel unit focuses on gasoline and propane with slightly lower capacity.

Key differences

AspectWestinghouse 12500-Watt Dual-Fuel GeneratorWestinghouse 13500W Tri-Fuel Portable Generator
Fuel TypeDual Fuel (Gas and Propane)Tri-Fuel (Gas, Propane, Natural Gas)
Peak Watts12,500 W (Gas) / 11,200 W (Propane)13,500 W (Gas) / 12,500 W (Propane) / 10,000 W (NG)
Running Watts9,500 W (Gas) / 8,500 W (Propane)10,500 W (Gas) / 9,500 W (Propane) / 8,500 W (NG)
Run TimeUp to 12 HoursUp to 19 Hours
Weight210 pounds230 pounds
Safety FeaturesAutomatic Low Oil ShutdownAutomatic Low Oil and CO Shutdown

Which one should you choose?

Choose Westinghouse 12500-Watt Dual-Fuel Generator if

  • You prefer a lighter unit that is easier to move around.
  • You do not have access to a natural gas line for backup fuel.
  • You want a slightly more compact fuel tank for easier storage.

Choose Westinghouse 13500W Tri-Fuel Portable Generator if

  • You need the highest possible peak wattage for larger loads.
  • You want the option to run on natural gas for extended outages.
  • You prioritize longer run times on a single tank of fuel.

Verdict: Choose the Westinghouse 12500-Watt Dual-Fuel Generator if you want a lighter machine and do not require natural gas capability. Pick the Westinghouse 13500W Tri-Fuel Portable Generator if you need higher power output, longer run times, or the flexibility of natural gas. Both models provide robust home backup with remote start convenience.

Power and Fuel Flexibility Compared

Peak Wattage Output

Edge: Westinghouse 13500W Tri-Fuel Portable Generator

The Westinghouse 13500W Tri-Fuel Portable Generator delivers 13,500 peak watts on gasoline, while the Westinghouse 12500-Watt Dual-Fuel Generator provides 12,500 peak watts on the same fuel. Both units switch to propane for lower output ratings, with the tri-fuel model reaching 12,500 peak watts and the dual-fuel model hitting 11,200 peak watts. The tri-fuel option also supports natural gas, offering 10,000 peak watts in that configuration. If you need maximum surge capacity for starting heavy appliances, the 13500W model holds a clear advantage in raw power potential across all fuel types.

Running Wattage Capacity

Edge: Westinghouse 13500W Tri-Fuel Portable Generator

For sustained power needs, the Westinghouse 13500W Tri-Fuel Portable Generator offers 10,500 running watts on gasoline. The Westinghouse 12500-Watt Dual-Fuel Generator provides 9,500 running watts on gasoline. On propane, the tri-fuel model sustains 9,500 running watts, matching the dual-fuel model's propane output. The tri-fuel generator also runs at 8,500 watts on natural gas. This means the 13500W model can handle more continuous load on gasoline, giving you more headroom for running multiple high-draw devices simultaneously without overloading the system.

Fuel Type Options

Edge: Westinghouse 13500W Tri-Fuel Portable Generator

The Westinghouse 13500W Tri-Fuel Portable Generator supports three fuel sources: gasoline, propane, and natural gas. The Westinghouse 12500-Watt Dual-Fuel Generator only accepts gasoline and propane. This additional natural gas capability allows the tri-fuel model to connect directly to a home’s natural gas line for indefinite runtime during extended outages, provided the line is accessible. The dual-fuel model requires you to manage and refill propane or gasoline tanks. If you have a natural gas connection, the tri-fuel option offers superior convenience and fuel flexibility.

Runtime Efficiency

Edge: Westinghouse 13500W Tri-Fuel Portable Generator

The Westinghouse 13500W Tri-Fuel Portable Generator features a 9.5-gallon fuel tank and offers up to 19 hours of run time. The Westinghouse 12500-Watt Dual-Fuel Generator has a smaller 6.6-gallon fuel tank and provides up to 12 hours of run time. The larger tank on the tri-fuel model contributes to significantly longer operation between refills. This extended runtime reduces the frequency of refueling stops, which is particularly useful during long power outages or when monitoring the generator remotely. The dual-fuel model requires more frequent attention to maintain power.

Engine Displacement and Weight

Edge: Westinghouse 12500-Watt Dual-Fuel Generator

The Westinghouse 13500W Tri-Fuel Portable Generator is powered by a 500cc engine and weighs 230 pounds. The Westinghouse 12500-Watt Dual-Fuel Generator uses a 457cc engine and weighs 210 pounds. The larger engine in the tri-fuel model supports its higher wattage outputs but adds 20 pounds to the unit. Both models share identical dimensions of 26.1 inches by 27.2 inches by 26.5 inches. The weight difference is manageable but noticeable when moving the units. The dual-fuel model is slightly lighter, which may matter if you move it often.

Which Westinghouse Generator Fits Your Needs

Users with natural gas lines

Our pick: Westinghouse 13500W Tri-Fuel Portable Generator

This tri-fuel model supports natural gas, offering 8,500 running watts and 10,000 peak watts on that fuel type. You can connect directly to a fixed line for extended backup. The 9.5-gallon tank also allows up to 19 hours of runtime on gasoline, providing reliable long-duration power for home emergencies.

Those needing maximum peak power

Our pick: Westinghouse 13500W Tri-Fuel Portable Generator

It delivers 13,500 peak watts on gasoline, exceeding the dual-fuel model's 12,500 peak watts. The 500cc engine supports this higher output. If you plan to start large motors or run multiple high-draw appliances simultaneously, this extra surge capacity helps ensure the generator handles your peak electrical load without tripping.

Buyers preferring lighter weight

Our pick: Westinghouse 12500-Watt Dual-Fuel Generator

Weighing 210 pounds, this dual-fuel generator is 20 pounds lighter than the tri-fuel option. The 457cc engine powers 9,500 running watts on gasoline. If you need to move the unit frequently or have limited lifting capacity, the reduced weight makes transportation easier while still providing robust home backup capabilities.

The products compared

Westinghouse 12500-Watt Dual-Fuel Generator

Best for: Home backup with dual fuel flexibility

Running Wattage
9,500 W (gas) / 8,500 W (propane)
Surge Wattage
12,500 W (gas) / 11,200 W (propane)
Fuel Type
Dual Fuel (Gas and Propane)
Voltage
120V/240V
Application
Home
Start Type
Electric Start, Remote Start

View on Amazon: Westinghouse 12500-Watt Dual-Fuel Generator Affiliate link

This Westinghouse unit delivers 12,500 peak watts on gasoline and 11,200 on propane. It features a 457cc engine with a cast iron sleeve and a VFT display showing voltage and frequency. You get remote start via key fob, electric start, and recoil pull. The 6.6-gallon tank offers up to 12 hours of run time. It includes transfer switch readiness and multiple outlets, making it a solid home backup option.

Pros

  • 12,500 peak watts on gasoline for high power demands
  • Dual fuel capability with propane option for flexibility
  • Remote start key fob included for convenience
  • VFT display provides real-time voltage and frequency data

Cons

  • Heavier at 210 pounds, reducing portability
  • Only dual fuel, lacking the tri-fuel option of the other model
  • Larger footprint at 27.2 inches long

Good fit if

  • You need reliable home backup power during outages
  • You prefer the flexibility of using propane or gasoline
  • You want remote start convenience without manual pulling

Skip if

  • You require tri-fuel capability for diesel or natural gas
  • You need a lighter unit for easy transport
  • You prioritize peak wattage above 12,500 watts

Verdict: Westinghouse 12500W Dual Fuel Generator suits homeowners needing robust backup power with fuel flexibility. Its remote start and transfer switch readiness make it ideal for essential home circuits.

Westinghouse 13500W Tri-Fuel Portable Generator

Best for: Home backup with multiple fuel options

Running Wattage
10,500 W
Surge Wattage
13,500 W
Fuel Type
Gasoline, Propane, Natural Gas
Output Ports
50A and 30A outlets
Application
Home
Start Type
Electric Start, Remote Start

View on Amazon: Westinghouse 13500W Tri-Fuel Portable Generator Affiliate link

This Westinghouse unit delivers 13,500 peak watts on gasoline, 12,500 on propane, and 10,000 on natural gas. You get 10,500 running watts on gas, which supports heavy home loads. It features a 500cc engine, remote start key fob, and transfer switch readiness. The 9.5-gallon tank offers up to 19 hours of runtime. This tri-fuel flexibility suits users needing backup power options.

Pros

  • Tri-fuel capability for gas, propane, or natural gas
  • 13,500 peak watts on gasoline
  • Remote start with included key fob
  • Transfer switch ready with L14-30R outlet
  • Up to 19 hours of runtime on gas

Cons

  • Heavy at 230 pounds
  • Larger footprint than dual-fuel models
  • Requires manual oil check via hour meter

Good fit if

  • You need backup power for multiple high-wattage appliances
  • You have access to natural gas or propane
  • You want remote start convenience

Skip if

  • You need a lightweight, portable unit
  • You only have gasoline available
  • You require a smaller footprint for tight spaces

Verdict: Westinghouse 13500W Tri-Fuel Portable Generator is ideal for homeowners needing high power and fuel flexibility, though its weight and size demand a dedicated space.

Specifications side by side

Spec Westinghouse 12500-Watt Dual-Fuel Generator Westinghouse 13500W Tri-Fuel Portable Generator
Running Wattage 9,500 W (gas) / 8,500 W (propane) 10,500 W
Surge Wattage 12,500 W (gas) / 11,200 W (propane) 13,500 W
Fuel Type Dual Fuel (Gas and Propane) Gasoline, Propane, Natural Gas
Output Ports not stated 50A and 30A outlets
Voltage 120V/240V not stated
Application Home Home
Start Type Electric Start, Remote Start Electric Start, Remote Start
Features Transfer Switch Ready Transfer Switch Ready
Dimensions 27.2 × 26.1 × 26.5 inches 27.2 × 26.1 × 26.5 inches
Weight 210 pounds 230 pounds
Size WGen9500DF 13000W Tri-Fuel + CO Sensor
Color - CARB Compliant Blue
Model WGen9500DF WGen10500TFc

Frequently asked questions

Which Westinghouse generator is lighter to move?

The Westinghouse 12500-Watt Dual-Fuel Generator is the lighter option. It weighs 210 pounds. The Westinghouse 13500W Tri-Fuel Portable Generator is heavier at 230 pounds. Both units share the same physical dimensions. You will need a cart or dolly for either model due to their weight.

Can I use natural gas with the 12500W model?

No, the Westinghouse 12500-Watt Dual-Fuel Generator only supports dual fuel options. The Westinghouse 13500W Tri-Fuel Portable Generator supports natural gas in addition to gasoline and propane. If you have a natural gas line, the tri-fuel model is the only choice for direct connection.

Do both models have remote start capabilities?

Yes, both models include remote start functionality. The Westinghouse 12500-Watt Dual-Fuel Generator features electric and remote start. The Westinghouse 13500W Tri-Fuel Portable Generator also offers electric and remote start. You can operate either unit from a distance using the provided remote.

Are the physical sizes of these generators identical?

Yes, the physical dimensions are identical for both models. Each generator measures 26.1 inches in width, 26.5 inches in height, and 27.2 inches in length. The footprint is the same, so they will fit in the same allocated space on your patio or in your garage.

Is the tri-fuel model ready for a transfer switch?

Yes, the Westinghouse 13500W Tri-Fuel Portable Generator is transfer switch ready. It is designed for home backup applications. This feature allows you to connect the generator to your home's electrical panel for automatic or manual power transfer during outages.

Which model is better for essential home circuits?

The Westinghouse 12500-Watt Dual-Fuel Generator is ideal for essential home circuits. It offers robust backup power with fuel flexibility. Its transfer switch readiness and remote start make it suitable for powering key home systems. The tri-fuel model also works but is heavier.

Does the 13500W model include a carbon monoxide sensor?

Yes, the Westinghouse 13500W Tri-Fuel Portable Generator includes a CO sensor. This safety feature monitors carbon monoxide levels. The model name specifically notes the inclusion of this sensor. It provides an added layer of safety when operating the generator in enclosed or semi-enclosed areas.

See also