The catch
Westinghouse WGen11500TFc Tri-Fuel Generator
Plan for two people to lift the 230-pound frame, and for level roll-out storage.
Side by side
Westinghouse WGen11500TFc vs Westinghouse WGen9500TFc EFI: 11500 brings natural-gas capacity, and 9500 uses EFI fuel metering
Quick verdict
Go for more natural-gas capacity, or for EFI fuel metering.
Before you buy
Why, and what it costs you
A running load of 8,500W on natural gas
Nominal margin is 1,000W for WGen11500TFc and -1,000W for WGen9500TFc EFI. A negative number means the continuous rating has been exceeded.
Where this comes from
The measured total running load is assumed to be 8500W on natural gas. Margin = fuel-specific running watts minus 8500. Starting transients, altitude, temperature, power factor and per-leg limits are left out.
The catch
Westinghouse WGen9500TFc EFI Tri-Fuel Generator
Because published output differs by fuel, the row for your chosen fuel is the one the tool should use.
Westinghouse WGen11500TFc Tri-Fuel Generator
- Why pick it
- Lower published THD and 9500W running on natural gas are what you need
- Remote and electric start, backed by recoil, is what you want
- The catch
- Plan for two people to lift the 230-pound frame, and for level roll-out storage.
Westinghouse WGen9500TFc EFI Tri-Fuel Generator
- Why pick it
- Your load fits within 7500W and you rank EFI highly
- Remote and electric start with EFI is the setup you want
- The catch
- Because published output differs by fuel, the row for your chosen fuel is the one the tool should use.
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What this page compares
WGen11500TFc and WGen9500TFc EFI side by side on fuel-specific power, starting demand, voltage and connection limits, to guide your generator choice.
Go for more natural-gas capacity, or for EFI fuel metering.
Which one fits
Pick the situations that sound like you
A continuous natural gas load of 8,500W
On natural gas, the WGen11500TFc gives 2000W more continuous output than the WGen9500TFc EFI. A plan for 8500W fits the first rating and goes 1000W over the second.
- Westinghouse WGen11500TFc Tri-Fuel Generator
- Depends
- Westinghouse WGen9500TFc EFI Tri-Fuel Generator
- Not suitable
Moving the generator and starting it when the power is out
Westinghouse publishes THD at 5% or less for the WGen11500TFc and 23% or less for the WGen9500TFc EFI. Verify what power the connected electronics and controls require.
- Westinghouse WGen11500TFc Tri-Fuel Generator
- Depends
- Westinghouse WGen9500TFc EFI Tri-Fuel Generator
- Depends
Hooking up the specified appliances or the home inlet
Remote start, 240V outlets and all three fuels come with both. EFI is a difference in starting and fuel metering, and it does not replace checking waveform and power ratings.
- Westinghouse WGen11500TFc Tri-Fuel Generator
- Depends
- Westinghouse WGen9500TFc EFI Tri-Fuel Generator
- Depends
About 35.4A is what an 8500W 240V load draws
That figure is over the 31.25A natural-gas running equivalent of WGen9500TFc EFI and under the 39.6A equivalent of WGen11500TFc.
- Westinghouse WGen11500TFc Tri-Fuel Generator
- Depends
- Westinghouse WGen9500TFc EFI Tri-Fuel Generator
- Not suitable
In practice
Differences you will notice
A running load of 8,500W on natural gas
Nominal margin is 1,000W for WGen11500TFc and -1,000W for WGen9500TFc EFI. A negative number means the continuous rating has been exceeded.
How we worked this out
The measured total running load is assumed to be 8500W on natural gas. Margin = fuel-specific running watts minus 8500. Starting transients, altitude, temperature, power factor and per-leg limits are left out.
A total starting event of 10,500W
Measured against this separately specified total starting demand, WGen11500TFc has 1,500W of published peak margin and WGen9500TFc EFI has -1,000W.
How we worked this out
Take the combined load during one motor start as 10500W, counting the appliances already running. Subtract 10500 from the natural gas starting rating. That shows nothing about surge duration or whether the motor starts successfully.
About 35.4A is what an 8500W 240V load draws
That figure is over the 31.25A natural-gas running equivalent of WGen9500TFc EFI and under the 39.6A equivalent of WGen11500TFc.
How we worked this out
8500 ÷ 240 = 35.42A. 7500 ÷ 240 = 31.25A. 9500 ÷ 240 = 39.58A. The load is assumed balanced, with power factor 1.0.
Plug in your numbers
Can either generator run what you need?
This checks hard limits only. Personal preferences are left out of the math.
Westinghouse WGen11500TFc Tri-Fuel Generator
Works with your numbersOn gasoline, it is rated for 11,500 running and 14,500 starting watts. With reserve, your load plan calls for 1,200 watts running and 2,900 watts starting.
Westinghouse WGen9500TFc EFI Tri-Fuel Generator
Works with your numbersOn gasoline, it is rated for 9,500 running and 12,500 starting watts. With reserve, your load plan calls for 1,200 watts running and 2,900 watts starting.
The estimate adds up the running watts of everything on at once, the biggest single startup surge and 15% headroom. Check each appliance label before you rely on it. Never run a fuel-burning generator indoors, in a garage or near doors, windows or vents.
Option A
Westinghouse, WGen11500TFc
WGen11500TFc Tri-Fuel Generator
Gasoline output is 11,500 running watts and 14,500 starting watts, and propane and natural gas work as fuels too.
- Best for
- start up a 240V well pump and power a window air conditioner
Facts we checked
- On gasoline it is rated at 11,500 running watts and 14,500 starting watts.
- Gasoline, propane and natural gas can all fuel it.
- Its output stage is a conventional generator design.
Option B
Westinghouse, WGen9500TFc EFI
WGen9500TFc EFI Tri-Fuel Generator
Rated at 9,500 running watts and 12,500 starting watts on gasoline, it also accepts propane and natural gas.
- Best for
- handle the startup of a 240V well pump and run a window air conditioner
Facts we checked
- It supplies 9,500 running watts and 12,500 starting watts on gasoline.
- Gasoline, propane and natural gas can all fuel it.
- Its output stage is a conventional generator design.
Spec by spec
Where they really differ
| Spec | Westinghouse WGen11500TFc Tri-Fuel Generator | Westinghouse WGen9500TFc EFI Tri-Fuel Generator | In practice |
|---|---|---|---|
| Running and starting output on natural gas | 9,500W running / 12,000W starting | 7,500W running / 9,500W starting | Each of continuous load and brief starting demand has its own limit. |
| Starting system | Remote and electric with recoil backup | Remote and electric with EFI | How easy it is to start is a separate matter from how the generator is carried. |
| Handling layout | 230lb wheeled open frame | 222lb wheeled open frame | Look at the route out of storage and how it will get into a vehicle. |
| Gasoline tank | 9.5 gallons | 6.6 gallons | Runtime at your load cannot be worked out from tank size alone. |
| Power regulation | Conventional, 5% or less | Conventional, 23% or less | Check waveform requirements specific to the load. |
Trade-offs
What each pick costs you
With Westinghouse WGen11500TFc Tri-Fuel Generator
- At 74 dBA, it is no quiet-campsite machine.
With Westinghouse WGen9500TFc EFI Tri-Fuel Generator
- EFI makes it easier to live with, but it is still a heavy conventional generator.
Change of plan
When the answer changes
Lower published THD and 9500W running on natural gas are what you need
Go with Westinghouse WGen11500TFc Tri-Fuel Generator. On natural gas, the WGen11500TFc gives 2000W more continuous output than the WGen9500TFc EFI. A plan for 8500W fits the first rating and goes 1000W over the second.
Your load fits within 7500W and you rank EFI highly
Go with Westinghouse WGen9500TFc EFI Tri-Fuel Generator. Westinghouse publishes THD at 5% or less for the WGen11500TFc and 23% or less for the WGen9500TFc EFI. Verify what power the connected electronics and controls require.
Decision guide
How to decide
More natural-gas capacity or EFI fuel metering is the decision.
Measure the load list on your fuel
On natural gas, the WGen11500TFc gives 2000W more continuous output than the WGen9500TFc EFI. A plan for 8500W fits the first rating and goes 1000W over the second.
Differences you will notice owning each
Westinghouse publishes THD at 5% or less for the WGen11500TFc and 23% or less for the WGen9500TFc EFI. Verify what power the connected electronics and controls require.
What to know about connection and installation
Remote start, 240V outlets and all three fuels come with both. EFI is a difference in starting and fuel metering, and it does not replace checking waveform and power ratings.
What this page can’t tell you
- These numbers are built on specifications, with no measured generator or motor-start tests.
- Altitude, temperature, fuel supply and individual 120V leg limits can all shrink the output you can use.
- A generator remains unsafe indoors, in a garage or under an enclosed shelter, CO shutoff or not.
By the numbers
What the data shows
What we found across the generator sets we compare, plus the checked facts behind each finding.
How many fit
Only 2 of the 24 models checked meet every need here: “Power a refrigerator and the essential lights” and “Tie in through a transfer switch at home”.
2 models fit, out of 24 checkedThe gap in numbers
Westinghouse WGen11500TFc Tri-Fuel Generator lists 11,500 W for running-watt rating, 21% more than the 9,500 W on Westinghouse WGen9500TFc EFI Tri-Fuel Generator.
- Westinghouse WGen11500TFc Tri-Fuel Generator
- 11,500 W
- Westinghouse WGen9500TFc EFI Tri-Fuel Generator
- 9,500 W
- Models with this figure
- 20 of 24
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “Power a refrigerator and the essential lights” and “Tie in through a transfer switch at home”. A need with no documented match is not counted.
How we calculatedFigures are for the named configuration on its main listed fuel. Output can drop on propane or natural gas. For context, 20 of 24 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Westinghouse WGen11500TFc Tri-Fuel Generator |
|
| |
| Westinghouse WGen9500TFc EFI Tri-Fuel Generator |
|
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Westinghouse WGen11500TFc Tri-Fuel Generator
Lower published THD and 9500W running on natural gas are what you need
See price & reviews on AmazonWestinghouse WGen9500TFc EFI Tri-Fuel Generator
Your load fits within 7500W and you rank EFI highly
See price & reviews on AmazonEach link opens in a new tab.
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