The 10 Best Dual Fuel Generators in 2022 (Clear Guide)

best dual fuel generators

Best Dual Fuel Generators in 2022- Electrical generators that can produce energy from two different fuels are known as dual fuel generators. Typically, gasoline or propane are used as the major fuels in dual fuel generators.

Due to its widespread availability, gas is quite simple to acquire. However, it has several drawbacks including excessive loudness and exhaust pollutants. Contrarily, propane is significantly more environmentally friendly and quieter when it comes to the production of energy and may be quite useful in an emergency (camping or RVs). As a result, we’ll look at a list of some of the Best Dual Fuel Generators available for purchase online in this post.

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It’s difficult to match the adaptability and dependability of a dual fuel generator, which can run on either gasoline or propane, for obtaining electricity off the grid. In an emergency, dual fuel generators may be utilized to power practically anything around your house, including heating systems and appliances. Or, whether you’re RVing or camping, having a dual fuel generator enables you to take advantage of the great outdoors without forgoing contemporary conveniences.

It can be difficult to select the finest dual fuel generator for your needs because there are so many alternatives available, some of which are very specialized and others that are made to be flexible in any circumstance. The starting and operating wattage on both gasoline and propane, which is the main determinant of how many items you can power concurrently off of the generator, was one of our top factors in our assessment of dual fuel generators.

Keep the following in consideration when purchasing a dual fuel generator:

  • Fuel Capacity: Every generator has a fuel tank since dual fuel generators are reliant on gasoline. This fuel tank’s capacity, which shows how much gasoline can be poured into the generator at once, is known. Naturally, a tank with a bigger capacity won’t need to be refilled as frequently.
  • Power Output: A dual fuel generator provides power output in watts. Rated output and peak watts are two of the output ratings that are offered. The peak output is the largest output that is possible at any one moment, whereas the rated output power is essentially the constant general power production.
  • Noise Level: Every gasoline-powered machine makes some level of noise because fuel is always burning inside the engine block. Now, a dual fuel generator’s noise cannot be totally eliminated. However, you may always choose the option that produces the least noise.

The best dual fuel generators currently on the market are what we’re offering today. You may check our best selections, find out about their key characteristics, and get all the required details.

A thorough “Buying Guide” is also provided below to further assist you in understanding dual fuel generators. To make the best decision, be sure to read the article in its entirety. The best dual fuel generators are listed below for continuing vital operations during a power outage.

Best Dual Fuel Generators Reviews

Westinghouse Dual Fuel Generator

Best Dual Fuel Generators
Westinghouse Dual Fuel Generator (Reference:

Pros & Cons

  • Power capacity is highest in comparison
  • Fuel capacity is pretty high
  • All outlets have rubber caps
  • Very expensive fuel generator


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


General Descriptions

A well-known name in power generators is Westinghouse. Additionally, they produce a dual-fuel power generator, which we have included below.

A Westinghouse heavy-duty dual-fuel power generator is the first item on our list. A 457CC 4-stroke engine powers this generator. It is the most potent generator on our list, able to deliver 12500W of peak output and 9500W of operating power when powered by gasoline. With 8500W of operating power and 11200W of peak power on propane, it also produces a very good amount of electricity.

With 6.6 gallons of gasoline available at once, you can operate continuously for nearly 12 hours before needing to refuel. This makes it ideal for RV camping or any nighttime outdoor celebration. A 12V battery charging port, two GFCI 120V 5-20R outlets, a transfer switch-ready 120V/240V L14-30R outlet, an RV-ready 120V/240V 14-50A outlet, and other outlet ports are included. Westinghouse WGen9500DF has a 3-year manufacturer’s warranty.

Read More about Deisel Generators

Duromax Dual Fuel Generator

Best Dual Fuel Generators
Duromax Dual Fuel Generator (Reference:

Pros & Cons

  • Power capacity is pretty good
  • Fuel capacity is better than other options
  • Outlets do not have any cover


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


General Descriptions

Another well-known manufacturer of power generators is Duromax. Additionally, they provide a dual fuel generator.

A Duromax heavy-duty dual fuel generator is the second item on our list. The 458CC OHV 4-stroke Duromax engine that powers this generator can run on either gasoline or propane and will provide approximately the same power. This generator can produce 12000W of surge power and 9500W of operating power when fueled by gasoline. The figures are slightly lower when using propane, with 9025W of operating power and 1140W of surge power.

The 8.3-gallon gasoline tank of the Duromax XP12000EH is more than sufficient for a protracted and unbroken performance. This high power output may be used through a variety of ports, including two standard 120V 20A home outlets, one 120V/240V 50A heavy-duty outlet, one 120V/240V 30A twist-lock outlet, and one 120V 30A twist-lock outlet. Duromax offers a 3-year warranty on this item.

Champion Power Equipment Dual Fuel Generator

Best Dual Fuel Generators
Champion Power Equipment Dual Fuel Generator (Reference:

Pros & Cons

  • The warranty period is pretty long
  • Engine efficiency is good
  • Fuel tank capacity could be better


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 of run time
3.4-gallon fuel tank capacity
1 x 120V 30A RV (TT-30R) outlet
1 x 120V 30A locking (L5-30R) outlet


General Descriptions

The dual fuel generator from Champion Power Equipment is up next. For equipment and power generators it is a very dependable brand.

A very dependable dual-fuel power generator from Champion Power Equipment is the third item on our list. It is propelled by a 224 cc, 4-stroke engine with respectable fuel efficiency. For ease of use, there is a push-button electric start. When powered by gas, it can deliver 4750W of peak power and 3800W of operating power.

It may also be powered by propane; in which case it offers 4275W of peak power and 3420W of operating power. You can get up to 9 hours of run time on gasoline and 10.5 hours of run time on propane with a full fill.

This Champion dual-fuel power generator has a 3.4-gallon fuel tank, which is sufficient for most purposes. One 120V 30A RV (TT-30R) outlet, one 120V 30A locking (L5-30R) outlet, and two 120V 20A standard domestic outlets make up the outlet ports.

It is one of the most dependable options on our list, as we already noted, and comes with a 3-year manufacturer’s guarantee.

DuroStar Dual Fuel Generator

Best Dual Fuel Generators
DuroStar Dual Fuel Generator (Reference:

Pros & Cons

  • A decent number of outlet
  • Large fuel tank
  • No caps on outlets


8000W of running power and 10000W of peak power on gas
Powered by a 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


General Descriptions

Our next item is the twin fuel generator from DuroStar. To address customer demand for emergency power, DuroStar specializes in creating dual fuel and gas generators.

The 439CC OHV engine that powers the dual fuel generator from DuroStar has enough power to run several devices, including power tools and heavy-duty appliances. The generator has a starting power capacity of 10,000W and an operating power capacity of 8000W. The generator uses dual fuel, as suggested by its name, and can hold 8.3 gallons of fuel. This generator may be run on either gasoline or propane.

The dual fuel generator has MX2 technology, which enables you to tailor the power to your specific requirements. You may run the generator at 120V and 240V concurrently or only 120V for the greatest amount of power output. All home appliances may be supported by the power panel’s numerous outlets. Additionally, there is a 12V DC charging post for extra batteries.

This dual fuel generator is covered by a 3-year guarantee from the original purchase date by DuroStar.

Wen Dual Fuel Generator

Best Dual Fuel Generators
Wen Dual Fuel Generator (Reference:

Pros & Cons

  • A good option for heavy applications
  • Decent fuel capacity
  • Bit heavier than some other options
  • The price is a bit higher in comparison


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


General Descriptions

If you have ever sought machinery or power tools, you must be familiar with Wen. In addition, they produce the dual fuel generator stated below.

Another powerful dual-fuel power generator from Wen is presented here. It is propelled by a turn-key-started, 4-stroke, 457CC OHV engine. On gasoline, you may generate up to 8300W of operating power and a maximum of 11000W of output. A 6.6-gallon gasoline tank powers all of this energy, providing approximately 8.5 hours of continuous use.

On the other side, when utilized with propane, it can deliver 7500W of operating power and 9500W of surge power.

There are 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 on the front of the device. With this dual fuel generator, a 2-year guarantee is included.

Pulsar Dual Fuel Portable Generator

Best Dual Fuel Generators
Pulsar Dual Fuel Portable Generator (Reference:

Pros & Cons

  • Decent collection of outlets
  • Pretty good power output
  • The warranty period is short


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


General Descriptions

When it comes to power generators, the Pulsar brand is somewhat underrated. They do, however, often receive favorable user comments.

Pulsar may be your best choice if you’re seeking a fairly powerful dual fuel generator for a general-purpose application. On gasoline, it can deliver 12000W of surge power and 9500W of operating power. The performance of propane is also rather high, providing 8550W of operating power and having a peak power capacity of 10800W.

It is propelled by a 457CC 8-gallon fuel-capable OHV four-stroke engine. If you use this tank at half load while using gasoline, you may expect it to operate for around 12 hours. There are four 120V 20A outlets, one 120V/240V 50A outlet, one 120V/240V 30A twist-lock outlet, and one 12V DC outlet, making up a respectable assortment of outlets. At this pricing point, Pulsar’s 1-year warranty is extremely inadequate.

Firman Dual Fuel Generator

Best Dual Fuel Generators
Firman Dual Fuel Generator (Reference:

Pros & Cons

  • Provides reliable power for up to 14 hours
  • Large fuel tank
  • Long warranty period
  • The handle is not durable


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


General Descriptions

Popular brand Firman creates reliable, clean, high-efficiency generating equipment for supplying power to customers. The company has operations and sells its goods in more than 100 nations.

In order to satisfy your emergency power needs, Firman’s dual fuel generator is powered by a 439CC Firman Engine that can generate 8000W of operating power and 10000W of surge power. The generator’s enormous 8-gallon fuel tank allows it to run a variety of appliances for up to 14 hours with continuous, dependable electricity.

It produces 9050W of peak power and 7250W of operating power when powered by propane.

For durability, the dual fuel generator has a tubular roll cage structure. You can carry the generator easily thanks to its ergonomically designed, cushioned handle. Additionally, the two wheels offer the most portability. To use an external propane tank to power this generator, you are provided with a 5.5-foot propane pipe.

This dual fuel generator is covered by a 3-year limited guarantee from the original purchase date by Firman.



FAQs about Dual Fuel Generators

How do you pick between the eight top dual fuel generators now available on the market that you’ve been introduced to them? Our buying guide provides a summary of some of the key factors to take into account when selecting a dual fuel generator.

Why choose a dual fuel generator?

Your generator must run on both gasoline and propane. The two distinct fuels have various characteristics in addition to merely allowing you the option to select a fuel when the price of gasoline and propane fluctuates. Any gas station has gasoline accessible, which is great if you’re using your generator to power an RV or another portable setup.

Additionally, compared to propane, gasoline is more effective and performs better in colder climates. Propane, on the other hand, can be kept in your home for up to a year and stores for a lot longer than gasoline, making it the perfect emergency backup fuel. Additionally, propane often costs significantly less than gasoline.

How do you intend to use your generator?

What features you should look for when selecting a model depends greatly on how you want to utilize your generator. When the power goes out, running a generator to power your home has significantly different output wattage requirements and runtime goals than running a generator to power an RV or a campground. For your planned use, take into account how much power you will require in the worst-case scenarios and how long you would need to operate your generator continually.

What are your power needs?

Find a powerful generator that generates at least 5,000 W; more if you have a water pump or an energy-intensive heating system if you want to use it to power your entire house in an emergency. A 2000-Watt generator, for example, is smaller and has a lower power rating, making it more portable but better suited for usage at campsites or RV parks.

Additionally, you might only need to think about how much power the generator produces on one fuel rather than how effectively it balances both fuels if you know you will use either gasoline or propane nearly entirely. If you want even more flexibility and power, think about purchasing a tri-fuel generator.

Depending on your application, the runtime is also crucial. You will need a generator with a lengthy runtime of 10 to 12 hours at half power if you intend to power your home and want everything to operate nearly regularly. However, the runtime may not be a huge factor if you are driving an RV and just want electricity for a few brief periods, such as in the morning and evening.

Buying Guide for The Best Dual Fuel Generator

You must know a lot about dual fuel generators now that you have read about all of our selections for the top models. Perhaps you’ve already given a few choices some thought. However, you must carefully examine each generator’s characteristics and weigh their significance in relation to your application before selecting a dual fuel generator.

There’s a good probability that some aspects of a particular product won’t be useful to you at all. We are offering this thorough shopping information to prevent such a situation. You may read in-depth descriptions of each property here and select which ones your dual fuel generator most urgently needs. For appropriate selection, be sure to read the buying guide in its entirety. You can also visit this video to explore more about them.

Fuel Capacity

Dual fuel generators feature specialized fuel tanks to store fuel since they run on both gasoline and propane. Since each fuel tank has a different capacity, no two fuel tanks are the same. This amount is specified in gallons. A 10-gallon tank, for instance, is capable of holding 10 gallons or less of fuel at once.

A large-capacity tank will benefit you in a variety of ways. If your fuel tank is huge, you won’t have to bother about periodically replenishing the generator and you can enjoy continuous power output. Remember that only premium choices come with huge gasoline tanks.

Rated and Peak Output

When purchasing a generator for backup power, it’s important to consider the power that the generator can provide. Each dual fuel generator has two separate output ratings: rated output and peak output. However, the figures for propane and gasoline are different. As a result, each generator has 4 different output values.

You shouldn’t be concerned, even if this might be puzzling. When purchasing the generator, you will automatically receive one with a higher running watt output if you only take into account the peak capacity of the generator for both fuels. A high peak value for gasoline, for instance, will naturally result in a high peak value for propane and high running watts.

Generator Size

If you want to move the generator around for different purposes, this might be a crucial factor. Make sure to take the generator’s size and weight into account if you’re thinking about buying a heavy-duty generator.

In general, heavy-duty generators are larger and heavier than low-powered ones. Consequently, transporting a heavy-duty dual fuel generator might be difficult, especially if the fuel tank is full. On the other hand, you’ll find that the power and fuel capacities are lesser if the generator is compact.

Noise Levels

Gasoline or propane is used internally to power dual fuel power generators. Generators make a substantial amount of noise when they are running since this combustion is a continuous process. There isn’t a fuel generator on the market that operates completely quietly. However, you may undoubtedly choose a dual fuel generator with a lower noise rating.

It can cause a lot of disruption if the generator is creating an intolerable level of noise, which will then have an impact on your application. Consequently, you should always take a generator with a lower noise rating into account. Also keep in mind that since propane operates quietly, you won’t need to worry as much about sound levels if you use it as your main fuel.

Engine Efficiency

A combustion engine that burns either gasoline or propane to produce energy is housed inside each dual fuel generator. Despite the fact that numerous power output ratings may appear to be identical, engine efficiency causes fuel consumption to vary. In essence, engine efficiency refers to how well fuel may be used to generate energy.

If the engine is inefficient, gasoline will run out quite quickly. Additionally, you will encounter a lot of dangerous exhaust fumes brought on by the incorrect gasoline burning. Therefore, even if you choose a low-power engine, check to see if it has a low fuel consumption rate.


If there is an unexpected power outage, a dual fuel generator may save your life. The ability to use a backup fuel source in case you can’t find the primary fuel nearby is a dual fuel generator’s main benefit. There are several varieties of dual fuel generators on the market. Consequently, picking one of them might be difficult.

For your benefit, we have compiled this list of the top dual fuel generators. A buying guide is also available to assist you with your purchase. If you’re still unsure about which of the aforementioned choices is ideal for you, have a look at our suggestions below:

As a heavy-duty choice, we will initially suggest a Westinghouse twin fuel generator. This generator has a peak power output of 12500W and a constant power capacity of 9500W. As it can contain up to 6.6 gallons of petrol at once, the fuel tank is rather large. With this model, the warranty period is three years.

The Pulsar dual fuel generator is a fantastic option if you want a respectable selection of outlets. It also has an excellent power rating, with a peak power of 12000W and a continuous output of up to 9500W. With 8 liters, the gasoline tank is quite sizable. However, the manufacturer will only give you a 12-month guarantee on this generator.

Now, if money is short, get the Champion Power Equipment Dual Fuel generator. Given that it has a lengthy 3-year guarantee, it is also among the list’s most dependable devices. With an operating power of 3800W and a peak output of 4750W, it is also rather potent.

Don’t forget to leave a comment with your ideas. Additionally, if you have any questions, you may submit them there!

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