The 7 Best Dual Fuel Generators Reviews and Buying Guide (2024)

Dual Fuel Generators are basically electrical generators that can use two different fuels for generating electricity. Generally, dual fuel generators use gasoline or propane as primary fuels to generate power. Gas is pretty easy to obtain as it is easily available almost everywhere. But, it has some disadvantages such as high noise and more exhaust fumes. Propane, on the other hand, is much cleaner and quieter in terms of power generation and can be quite handy in case of emergency (camping or RVs). So, in this article, we will see a list of some of the Best Dual Fuel Generators you can buy online.

Before buying a dual fuel generator, keep the following things in mind:

• Fuel Capacity: As dual fuel generators are dependent on Gasoline, there is a fuel tank in every generator. This fuel tank has a certain capacity that indicates the amount of fuel that can be put in the generator at once. Obviously, a higher capacity tank will not require a refill for a longer time.
• Power Output: Power output of a dual fuel generator is provided in watts. There are 2 different output ratings available that are rated output and peak watts. The rated output power is basically the continuous general power output, whereas the peak output is the maximum output available at a certain time.
• Noise Level: Every fuel based machine creates a certain amount of noise as there is constant combustion of fuel inside the engine block. Now, you cannot completely eliminate the noise in a dual fuel generator. But, you can always choose the one that makes the least amount of noise.

Today, we are presenting the best dual fuel generators available in the market right now. You can take a look at our top picks and also learn about their important properties and get all the necessary information.

You can also find a detailed “Buying Guide” down below to help you understand dual fuel generators a bit better. Therefore, make sure you read the article completely to make a perfect choice.

Best Dual Fuel Generators 2023 Table

7 Best Dual Fuel Generators Reviews

1. Westinghouse Dual Fuel Generator

Westinghouse is a well-known brand in the power generators. They also make a dual-fuel power generator that we have included below.

The first product in our list is a heavy-duty dual-fuel power generator from Westinghouse. This generator is powered by a 457CC 4-stroke engine. It is the most powerful generator from our list as it is capable of providing 9500W of running power and 12500W of peak output when run on gasoline. It also has a very good output on propane with 8500W of running power and 11200W of peak power.

You can put up to 6.6 gallons of fuel at once, which will give you about 12 hours of continuous run time without needing a refill. This makes it perfect for any outdoor party at night or camping in RVs. It features various outlet ports, including 2 GFCI 120V 5-20R outlets, one transfer switch ready 120V/240V L14-30R outlet, one RV Ready 120V/240V 14-50A Outlet and a 12V battery charging port. There is 3-year manufacturer’s warranty on Westinghouse WGen9500DF.

Highlights

• 9500W continuous and 12500W peak power on gas
• 8500W continuous and 11200W peak power on propane
• 6.6-gallon fuel tank capacity
• 2 GFCI 120V ports
• 1 transfer switch ready 120V/240V L14-30R
• 1 RV Ready 120V/240V outlet
• 12V Battery Charging Port
• 3 year warranty period

Pros:

• Power capacity is highest in comparison
• Fuel capacity is pretty high
• All outlets have rubber caps

Cons:

• Very expensive fuel generator

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2. Duromax Dual Fuel Generator

Duromax is another popular brand that makes many power generators. They also have a dual fuel generator in their line up.

The second product in our list is a heavy duty dual fuel generator from Duromax. This generator is powered by a 458CC OHV 4-stroke Duromax engine that can use either gasoline or propane as the fuel; you will be getting almost similar power output. When used with gasoline, this generator is capable of providing 9500W of running power and 12000W of surge power. When used with propane, the numbers fall a little bit with 9025W of running power and 1140W of surge power.

The fuel tank capacity on Duromax XP12000EH is 8.3 gallons that is more than enough for a long and uninterrupted performance. You can utilize this high power output via several different ports such as one 120V/240V 50A heavy-duty outlet, one 120V/240V 30A twist lock outlet, one 120V 30A twist-lock outlet and two regular 120V 20A household outlets. There is 3 year warranty on this product from Duromax.

Highlights

• 9500W of running power and 12000W of peak power when run on gasoline
• 9025W of running power and 11400W of peak power when run on propane
• Powered by 458 cc OHV 4-stroke Duromax engine
• 8.3-gallon fuel tank capacity
• 1 x 120V/240V 50A heavy-duty outlet
• 1 x 120V/240V 30A twist lock socket
• 1 x 120V 30A twist-lock socket
• 2 x 120V 20A household outlets
• 3 year warranty period

Pros:

• Power capacity is pretty good
• Fuel capacity is better than other options

Cons:

• Outlets do not have any cover

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3. Champion Power Equipment Dual Fuel Generator

Next up, we have a dual fuel generator from Champion Power Equipment. It is a very reliable brand for power generators and equipment.

The third product in our list is a highly reliable dual-fuel power generator from Champion Power Equipment. It is powered by a 4 stroke, 224 cc engine which has a decent fuel efficiency. There is a push-button electric start for convenient usage. It is capable of providing 3800W of running power and 4750W of peak power when run on gas.

You can also run it using propane, in which case, it provides 3420W of running power and 4275W of peak power. With a complete fill, you can obtain up to 9 hours run time on gasoline and 10.5 hours of run time on propane.

Fuel tank capacity on this Champion dual-fuel power generator is 3.4 gallons that is good enough for general applications. The outlet ports consist of one 120V 30A RV (TT-30R) outlet, one 120V 30A locking (L5-30R) outlet, and two 120V 20A regular household outlets.

As we mentioned earlier, it is one of the most reliable option in our list as it has a 3 years of the manufacturer’s warranty period.

Highlights

• 3800W of running power and 4750W of peak power on gas
• 3420W of running power and 4275W of peak power on propane
• Powered by 4 strokes 224 cc engine
• Push-button start
• Good fuel efficiency
• Up to 9 hours run time
• 3.4-gallon fuel tank capacity
• 1 x 120V 30A RV (TT-30R) outlet
• 1 x 120V 30A locking (L5-30R) outlet
• 2 x 120V 20A household outlets
• 3 years warranty period

Pros:

• Warranty period is pretty long
• Engine efficiency is good

Cons:

• Fuel tank capacity could be better

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4. DuroStar Dual Fuel Generator

Next on our list is DuroStar’s dual fuel generator. DuroStar specializes in developing dual fuel generators and gas powered generators to meet the emergency power demands of consumers.

DuroStar’s dual fuel generator runs on a 439CC OHV engine that provides plenty of power operating multiple devices including heavy duty appliances and power tools. The starting power capacity of the generator is 10,000W while the running power is 8000W. As the name has it, the generator works on dual fuel and has a fuel capacity of 8.3 gallons. You can use either propane or gasoline to power this generator.

The dual fuel generator features an MX2 technology allowing you to optimize the power based on your needs. You can operate the generator at both 120V and 240V simultaneously or switch to just 120V for maximum power deliverance. The power panel has multiple outlets for supporting all household appliances. There is also a 12V DC charging post for powering external batteries.

DuroStar backs this dual fuel generator with a 3-year warranty from the original date of purchase.

Highlights

• 8000W of running power and 10000W of peak power on gas
• Powered by 439CC OHV engine
• 8.3 gallons gasoline tank capacity
• MX2 technology for output power optimization
• 1 x 120V/240V 30A Twist lock outlet
• 1 x 120V/240V 50A heavy duty outlet
• 2 x 120V household GFCI outlets
• 1 x 120V 30A twist lock outlet
• 1 x 12V DC Port
• 3 year warranty period

Pros

• Decent number of outlet
• Large fuel tank

Cons

• No caps on outlets

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5. Wen Dual Fuel Generator

You must have heard about Wen if you have previously looked for power tools or machinery. They also make a dual fuel generator, as mentioned below.

Here is another heavy-duty dual-fuel power generator from Wen. It is powered by a 4-stroke 457CC OHV engine, which has a turn key start. You can get up to 8300W of running power and a maximum of 11000W output on gasoline. All this power is fueled from a 6.6-gallon gasoline tank that will allow you to have around 8.5 hours of nonstop usage.

On the other hand, it is capable of providing 7500W of running power and has 9500W of surge power when used with propane.

If you take a look at the front, you will see that it has four 120V 20A GFCI outlets, one 120V 30A twist lock L5-30R outlet, one 120V/240V 50A NEMA L14-50R outlet and one 12V DC outlet. You will be getting 2 years of warranty with this dual fuel generator.

Highlights

• 8300W of running power and 11000W of peak power on gas
• 7500W of running power and 9500W of peak power on propane
• 6.6-gallon fuel tank capacity
• 8.5 hours of backup in a single run
• 4 strokes 457CC OHV engine
• Turn the key to start the engine
• 2 x 120V 20A GFCI Outlet
• 1 x 120V 30A twist lock Outlet
• 1 x 120V/240V 50A NEMA L14-50R Outlet
• 1 x 12V DC outlet
• 2 years warranty period

Pros:

• Good option for heavy applications
• Decent fuel capacity

Cons:

• Bit heavier than some other options
• Price is a bit higher in comparison

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6. Pulsar Dual Fuel Portable Generator

Pulsar is a bit underrated brand when it comes to power generators. Still, they have pretty positive feedback from users.

If you are looking for a moderately powered dual fuel generator for a general-purpose application, then Pulsar can be the best option for you. It is capable of providing 9500W of running power and 12000W of surge power on gasoline. The performance on propane is also pretty good as it gives 8550W of running power and is capable of 10800W of peak power.

It is powered by a 4 stroke OHV air cooled 457CC engine that has a 8-gallon fuel tank. With this tank, you can get around 12 hours of operation if run at half load on gasoline. It has a decent set of outlets as well such as four 120V 20A outlets, one 120V/240V 50A outlet, one 120V/240V 30A twist-lock outlet and one 12V DC outlet. It is backed by 1 year warranty from Pulsar that is quite less at this price tag.

Highlights

• 9500W of running power and 12000W of peak power on gas
• 8550W of running power and 10800W of peak power on propane
• 8-gallon fuel tank capacity
• 12 hours of operation if run at half load on gasoline
• 4 stroke OHV air cooled 457 cc engine
• 4 x 120V 20A outlets
• 1 x 120V/240V 50A outlet
• 1 x 120V/240V 30A twist-lock outlet
• 1 x 12V DC Outlet
• 1 year warranty period

Pros:

• Decent collection of outlets
• Pretty good power output

Cons:

• Warranty period is short

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7. Firman Dual Fuel Generator

Firman is a popular brand that develops stable, high efficiency, and clean generating equipment for providing reliable power to consumers. The brand operates and sells its products in over 100 countries.

Firman’s dual fuel generator runs on 439CC Firman Engine that is capable of producing 8000W of running power and a surge power of 10000W to meet your emergency power demands. The generator has a large fuel tank capacity of 8 gallons that provides uninterrupted reliable power up to 14 hours to operate various appliances.

When run on propane, it provides 7250W of running power and 9050W or peak power.

The dual fuel generator features a tubular roll cage frame design for durability. There is an ergonomically designed padded handle that allows you for convenient carrying of the generator. Besides, the two wheels provide maximum portability. You get a 5.5 feet propane hose to run this generator using an external propane tank.

Firman backs this dual fuel generator with a 3-year limited warranty from the original date of purchase.

Highlights

• 8000W of running power and 10000W of peak power on gas
• 8 gallons fuel capacity
• 1 x 120V/240V 50A Outlet
• 1 x 120V240V 30A Outlet
• 1 x 120V 30A Outlet
• 2 x 120V 20A household outlets
• Durable tubular roll cage frame design
• Ergonomically designed padded handle
• 5.5 feet propane hose
• 3-year limited warranty period

Pros

• Provides reliable power for up to 14 hours
• Large fuel tank
• Long warranty period

Cons

• Handle is not durable

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Buying Guide For The Best Dual Fuel Generator

Now that you have finished reading about all of our picks for the best dual fuel generators, you must know a lot about them. You also might have considered a couple of options already. But, while choosing a dual fuel generator, you have to thoroughly study its properties and compare its importance regarding your application.

There is a high chance that some features available in a certain product will not be needed in your case at all. To avoid such a problem, we are providing this comprehensive buying guide. Here, you can read about each of the properties in detail and decide what you need in your dual fuel generator the most. Make sure you read the buying guide completely for accurate selection.

1. Fuel Capacity

As dual fuel generators are powered by gasoline and propane, they have dedicated fuel tanks to store fuel. Not all the fuel tanks are the same as each tank has its own capacity. This capacity is given in gallons. For example, a 10-gallon tank can hold 10 gallons or less of fuel at once.

Having a high capacity tank will be advantageous for you in many ways. If you have a large fuel tank, you won’t have to worry about refueling the generator every now and then, and you can enjoy uninterrupted power output. Keep in mind that large fuel tanks are only available with premium options.

2. Rated and Peak Output

As you are buying the generator for power backup, you must pay attention to the power available at the output of the generator. You will find 2 different output ratings on each dual fuel generator, which are rated and peak output. But these values differ for gasoline and propane. Therefore, you will find 4 different output values on each generator.

This can get confusing, but you don’t have to worry. If you only consider the peak capacity of the generator for both fuels while buying the generator, you will automatically get a higher running watts output. For example, if you opt-in for a high peak value for gasoline, you will automatically get a higher peak value for propane and higher running watts as well.

3. Generator Size

This can be a major aspect if you wish to move the generator around for different applications. If you are considering a heavy-duty generator, then make sure you take the size and weight of the generator into consideration.

Mostly, heavy-duty generators are bulkier and heavier in comparison with the low powered ones. Hence, moving a heavy-duty dual fuel generator, especially when the fuel tank is full, can be a challenging task. On the other hand, if the generator is compact in size, you will notice that the power capacity, as well as fuel capacity, will be lower.

4. Noise Levels

Dual fuel power generators are powered by internal combustion of gasoline or propane. As this combustion is a continuous process, there is a significant amount of noise produced by generators while they are in operation. It is impossible to find a fuel generator that is absolutely quiet in operation. But, you can definitely opt-in for a lower noise rated dual fuel generator.

If the generator is making an unbearable amount of noise, it can create a lot of disturbance that will, in turn, affect your application. Hence, you should always consider a generator that has a lower noise rating. Also, keep in mind that if you are going to use propane as your primary fuel, you won’t have to worry about sound levels as much because propane performs silently.

5. Engine Efficiency

Each dual fuel generator houses an engine that is used to burn the gasoline or propane to generate energy. While many power output ratings might seem similar, the fuel consumption will change because of engine efficiency. The engine efficiency basically represents how efficiently the fuel can be consumed to produce energy.

If the engine is not efficient, you will run out of fuel pretty fast. Also, you will face a lot of harmful exhaust gases caused by the improper burning of the fuel. Hence, even if you are going for a low power engine, make sure that it is efficient in terms of fuel consumption.

Conclusion

A dual fuel generator can be a lifesaver if there is a sudden power cut. The major advantage of a dual fuel generator is the option to use a secondary fuel in case you don’t obtain the primary fuel around you. There are a lot of different dual fuel generators available in the market. Hence choosing one of them can be a tedious task.

Therefore, we have created this list of the best dual fuel generators for you. You can also find a buying guide to help you with your purchase. In case you are still wondering which one of the above options is the best for you, you can take a look at our recommendations below:

• At first, we will recommend you Westinghouse dual fuel generator as a heavy-duty option. This generator is capable of providing 9500W of continuous power and it has a 12500W peak power capacity. The fuel tank is pretty big as it can hold up to 6.6 gallons of fuel at once. You will get 3 year of warranty with this model.
• If you need a decent collection of outlets, then the Pulsar dual fuel generator will be a good choice. It also has a good power ratings as it can provide up to 9500W of continuous power and it has a 12000W of peak power. The fuel tank is also large at 8 gallons. But you will get only 1 year of warranty from the manufacturer on this generator.
• Now, if you are on a tight budget, you should select theChampion power equipment Dual Fuel generator. It is also one of the reliable product from this list as it gives you a long 3 years of the warranty period. It is also pretty powerful as you can get 3800W of running power and 4750W of peak power.

Make sure to share your thoughts in the comments section. You can also post any questions down there if you have any!