5 Best Generators For Multiple Fuel Types

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Discover the best generators for different fuel types and situations so you can generate power with the fuel that is most convenient in your situation.

  1. Best generator for multiple fuel types: Champion 201169
  2. Best dual fuel inverter generator: Westinghouse iGen4500DF
  3. Best propane generator for off-grid living: Champion 200977 4250
  4. Best dual fuel generator for home backup: Champion 201175 8500
  5. Largest tri fuel inverter generator: GENMAX GM10500iETC

These generators are more than just their fuel options. You can see how they perform in other areas with the table below.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Champion 2011698.58.56<3%9.5886.5$$Check Price
Westinghouse iGen4500DF7.58.59<3%9888.5$$Check Price
Champion 200977 42507.598<3%9.5889$Check Price
Champion 201175 85008.578<3%8.587.56.5$$$$Check Price
GENMAX GM10500iETC978<3%67.58.56$$$$$Check Price
Best generators by fuel type performance on a score of 10 in important categories*

*Compared to similar generators and sometimes based on customer input

1. Champion 201169

The Champion 201169 is the best generator for multiple fuel types thanks to its tri fuel feature, good reliability, and reasonable price.

Champion 201169

This generator can use gasoline, propane, and natural gas depending on what setting you choose.

The extra fuel flexibility is useful during emergencies where you are not always sure what you will be able to use.

Tri fuel generators are also just the best choice if you want a portable model that can run on natural gas.

Pros

  • Champion 201169 offers 8125 starting watts, 6500 running watts, 30 amps, and 240 volts (gasoline)
  • Tri fuel feature allows you to run on propane and natural gas too
  • Noise levels of 74 dBA
  • Good run time of 12 hours at 50% load
  • Weight of 197 lb (89.4 kg)
  • Has electric start
  • Four GFCI outlets
  • CO sensor
  • Very positive customer reviews
  • 3 years limited residential and 270 days limited commercial warranties
  • Budget-friendly

Cons

  • High THD is not suited for sensitive electronics
  • Very exceptional cases where customers got a suboptimal first model

Fuel type options aside, another benefit of the Champion 201169 is its electric start. This allows you to press a button to get going instead of having to struggle with the recoil start.

The main downside of the Champion 201169 is that it does not have a built-in inverter. This multi fuel generator is not suitable for powering sensitive electronics like a microwave, TV, and many AC systems.

There are also a few exceptional cases where customers have technical issues with this generator. However, the Champion 201169 is still relatively reliable overall.

In short, the Champion 201169 is typically the best option if you want to use multiple fuel types, want a lot of power, and don’t need clean THD power (or have your own inverter).

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Champion 2011698.58.56<3%9.5886.5$$Check Price
Champion 201169 performance on a score of 10 compared to similar alternatives

2. Westinghouse iGen4500DF

The Westinghouse iGen4500DF is the best dual fuel inverter generator thanks to its popular power level, helpful features, and reasonable price.

Westinghouse iGen4500DF

This generator is able to run on both gasoline and propane. Propane is a good generator fuel type for occasional use since it stores a lot longer.

There is also less generator maintenance you have to do after only using propane.

A benefit of the Westinghouse iGen4500DF is its popular power level of 4500 peak watts.

This is high enough to have a great tailgating, RV camping, or DIY experience and low enough to keep the generator portable and quiet.

Pros

  • Westinghouse iGen4500DF offers 4500 starting watts, 3700 running watts, 30 amps, and 120 volts (gasoline)
  • Parallel capability
  • Dual fuel feature allows you to run on propane (LPG) too
  • Relatively low noise levels of 52 dBA
  • Long run time of 18 hours at 25% load (gasoline)
  • Less than 3% THD
  • Has electric start and optional remote start
  • A lot of performance tracking metrics
  • Optional CO sensor
  • Weight of 104.7 lbs (47.5 kg)
  • Positive customer reviews
  • 3 years limited residential and 1 year limited commercial warranties
  • A lot of customers

Cons

  • Some customers find changing the oil challenging
  • Can be challenging to move over bumpy terrain

Another benefit of the Westinghouse iGen4500DF is its built-in inverter. Contrary to the previous alternative, this dual fuel generator typically has no issues powering electronics.

A small disadvantage of the Westinghouse iGen4500DF is that changing the oil can be challenging according to a few customers.

The Westinghouse iGen4500DF can also be challenging to move over bumpy terrain due to the small wheels.

However, these are only small downsides.

The Westinghouse iGen4500DF is still often the best choice for people who want a medium-sized dual fuel inverter generator. Especially if you consider the reasonable price.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Westinghouse iGen4500DF7.58.59<3%9888.5$$Check Price
Westinghouse iGen4500DF performance on a score of 10 compared to similar alternatives

3. Champion 200977 4250

The Champion 200977 4250 is the best propane generator for off-grid living thanks to its inverter, reliability, nice amount of power, dual fuel feature, and portability.

Propane and natural gas are typically the best fuel types for off-grid living combustion generators since gasoline and diesel go bad more quickly.

Another benefit of the Champion 200977 4250 for off-grid living is its built-in inverter. You don’t want to worry about breaking your microwave or airco when you are far from the outside world.

Additionally, the Champion 200977 4250 is generally a very reliable generator according to customer reviews.

Pros

  • Champion 200977 offers 4250 starting watts, 3500 running watts, 30 amps, and 120 volts (gasoline)
  • Parallel capability
  • Dual fuel feature allows you to run on propane (LPG) too
  • Very positive customer reviews
  • Reasonable noise levels of 64 dBA
  • Long run time of 22 hours at 25% load (gasoline)
  • Less than 3% THD
  • Weight of 79 lb (35.8 kg)
  • 3 years limited residential and 270 days limited commercial warranties
  • A lot of customers
  • Relatively budget-friendly

Cons

  • No wheels so moving the generator can be challenging
  • A few very exceptional cases where the first model customers got had issues

You do want to try out your Champion 200977 4250 before you go off-grid since there are a few exceptional cases where the first machine customers got did not work.

Another downside of the Champion 200977 4250 is that it does not come with wheels. This generator takes a bit more effort to move around if you don’t order a wheel kit.

That being said, the Champion 200977 4250 is still one of the best dual fuel generators on the market. Especially if you look at its relatively budget-friendly price.

People who don’t mind moving the weight of 79 pounds and want reliable power can definitely consider this option.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Champion 200977 42507.598<3%9.5889$$Check Price
Champion 200977 4250 performance on a score of 10 compared to similar alternatives

4. Champion 201175 8500

The Champion 201175 8500 is the best dual fuel generator for home backup thanks to its built-in inverter, 50 amp outlet, and reliable brand.

Champion 201175 8500

Portable backup generators are typically connected to your house through one outlet (and a transfer switch).

A benefit of the Champion 201175 8500 is its 50 amp outlet. This allows you to get a higher amount of watts into your house than alternative generators with 50 amp outlets.

Additionally, the dual fuel feature of the Champion 201175 8500 makes it easier for you to maintain your fuel stores since propane typically lasts longer.

Pros

  • Champion 201175 8500 offers 8500 starting watts, 7000 running watts, 50 amps, and 240 volts (gasoline)
  • Dual fuel allows the generator to run on propane (LPG) too
  • Relatively low noise levels of 61 dBA
  • Run time of 14 hours at 25% load
  • Less than 3% THD
  • Electric start
  • Four GFCI outlets
  • CO sensor
  • Weight of 213.9 lb (97 kg)
  • 3 years limited residential and 270 days limited commercial warranties

Cons

  • Not a lot of customers yet
  • Somewhat pricier than other portable home backup generators

The Champion 201175 8500 positively stands out in its built-in inverter too. There are not many good dual fuel inverter generator alternatives at this power level.

A downside of the Champion 201175 8500 is that it does not have that many customer reviews yet. Champion is typically a reliable generator brand but exceptions can happen.

Additionally, this big dual fuel home backup generator requires a somewhat bigger investment too.

In short, the Champion 201175 8500 is typically a good choice for people who want a lot of low THD home backup power from multiple fuel types.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
Champion 201175 85008.578<3%8.587.56.5$$$$Check Price
Champion 201175 8500 performance on a score of 10 compared to similar alternatives

5. GENMAX GM10500iETC

The GENMAX GM10500iETC is the largest tri fuel inverter generator thanks to its high starting watt capacity of 10500 watts and built-in inverter.

GENMAX GM10500iETC

This allows you to generate a lot of low THD power from gasoline, propane, and natural gas. Powering devices like microwaves, TVs, and medium ACs should be no problem.

At least if the machine functions as desired. The GENMAX GM10500iETC currently has an above-average rate of technical issues similar to many other GENMAX generators.

Additionally, GENMAX customer support is often hard to contact. Even if you are still within the short 1-year warranty.

Pros

  • GENMAX GM10500iETC offers 10500 starting watts, 8500 running watts, 50 amps, and 240 volts (gasoline)
  • Parallel capability
  • Tri fuel feature allows you to run on propane and natural gas too
  • Relatively low noise levels of 62 dB
  • Run time of 14 hours at 25% load
  • Electric and remote start
  • CO sensor
  • Less than 3% THD
  • Weight of 247 lb (112 kg)
  • 1-year warranty

Cons

  • Above average rate of technical issues
  • Genmax customer support is not always easy to contact

This lack of reliability is unfortunate. The GENMAX GM10500iETC has many benefits on paper.

For example, this tri fuel generator is very quiet with noise levels of 62 dB at 25% load.

This GENMAX GM10500iETC has an electric start and remote start too. This is helpful for elderly individuals and people who simply don’t like the recoil start.

The GENMAX GM10500iETC could be worth trying out if you really want the biggest tri fuel inverter generator on the market.

However, there is a risk the machine will not completely function as desired.

Brand ModelPower
Capacity
Run
Time
Quiet
Operation
THDReliability
Reputation
Fuel
Efficiency
Ease
Of Use
PortabilityPrice
Category
Current
Price
GENMAX GM10500iETC978<3%67.58.56$$$$$Check Price
GENMAX GM10500iETC performance on a score of 10 compared to similar alternatives

What should you consider in a generator besides fuel types?

The main things to consider in a generator besides fuel types are:

  • Run time
  • Power capacity
  • Outlets
  • THD levels
  • Portability
  • Noise levels
  • User reviews
  • Anecdotal reviews from experts
  • Price
  • Brand trustability and reputation

To choose a generator you need to think about what fuel types and other details you want and find the generator that aligns best with your needs.

What is generator fuel?

Generator fuel is material that your generator can combust or use to generate eletric power. The design of the generator influences what fuel types it can use.

What are some examples of generator fuel types?

Some examples of generator fuel types are gasoline, propane, natural gas, and diesel. There are types of generators that use other fuel types too.

What is the best tri fuel generator?

The best tri fuel generator is the Champion 201169 thanks to its reliability, good run time, and reasonable price.

What is the best dual fuel inverter generator?

The best dual fuel inverter generator is the Westinghouse iGen4500DF thanks to its popular power level, helpful features, and reasonable price.

What is the best propane generator for off-grid living?

The best propane generator for off-grid living is the Champion 200977 4250 thanks to its inverter, reliability, nice amount of power, dual fuel feature, and portability.

What is the best dual fuel generator for home backup?

The best dual fuel generator for home backup is the Champion 201175 8500 thanks to its built-in inverter, 50 amp outlet, and reliable brand.

What is the largest tri fuel inverter generator?

The largest tri fuel inverter generator is the GENMAX GM10500iETC thanks to its high starting watt capacity of 10500 watts and built-in inverter.

What is the best generator for multiple fuel types?

The best generator for multiple fuel types is the Champion 201169 thanks to its tri fuel feature, good reliability, and reasonable price.

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Author:

Mats is the founder and head editor of Generator Decision. With a combination of critical thinking, tireless research, and a healthy interest in electronics he helps people find the right generators and how to use these. At this point in the journey, Mats has done research on hundreds of portable generators.