Buying Guide for the Best Dual Fuel Generator in the Market


Best Dual Fuel Generator

Most of you may have a generator at home as a backup plan, but sometimes we ran out of the fuel. We may have propane gas, but your generator is running with gasoline. That would be nice if you have a generator that can run with multiple fuel types.

The advancement in technology has now given rise to dual fuel generators, which can run with two different fuel types. These type of generators are flexible and able to serve you with the preferred fuels that ready at your home, whether it is propane, diesel, gasoline, or natural gas.

This post will give you the recommendation to choose the best dual fuel generators, including we will highlight the features that make each generator stand out.

Top Recommended Dual Fuel Generators

The dual fuel or hybrid generators will not only save you when disaster strikes but will also keep your daily activities running with ease.

There is no doubt that customers have more than enough options to choose from after reading thousands of dual fuel generator reviews. However, this review contains generators we have tested and recorded their performances. Therefore, this is a comprehensive and detailed review of the different generators that guarantee you nothing but service.

So without further ado, here is our list of the top 5 recommended dual fuel generators to buy in 2019:

Product NameAC Output For 1st FuelAC Output For 2nd FuelRuntimeWeightNoise LevelWarranty
DuroMax Hybrid XP12000EH12,000 watts11,400 watts20 hours227 lbs72 dBa3 years
Champion 3400-Watt Dual Fuel RV3,100 watts2,790 watts7.5 hours95.7 lbs
59 dBa3 years
Pulsar Dual Fuel Portable Generator8000 watts7000 watts
12 hours209 lbs70 dBa2 years
Westinghouse Dual Fuel

3,600 watts
3,240 watts18 hours109 lbs
68 dBa3 years
Sportsman GEN4000DF
4,000 watts3,500 watts
10 hours102 lbs69 dBa1 year

1. DuroMax Hybrid XP12000EH

DuroMax Hybrid Dual Fuel XP12000EHThe DuroMax Hybrid XP12000EH is what most users would call a heavy machine that stands out from the rest. The truth of the matter is that this generator is much more powerful and reliable than it looks. This generator is driven by an 18 horsepower 457 CC engine to give you enough power to run your appliances.

What makes it even stand out are the cast iron cylinder sleeves and the steel bearing that offer maximum durability. Therefore, this is a reliable generator that can power up your house when there is a power outage.

The dual fuel technology is a distinct feature that makes this generator a must-have especially if you live in an area prone to calamities or unreliable fuel supply. This technology also gives you the chance to utilize the type of fuel that doesn’t degrade over time and one that offers a longer runtime.

The generator is also easy to start, unlike the conventional generators. You can start The DuroMax Hybrid XP12000EH with a turn of a key. This electric start feature is powered by a 12V battery which means you don’t have to pull the recoil start rope. But for convenience purpose, the recoil start is still available in case the battery dies for lack of use. You will also notice a user-friendly panel when using this engine.

From the layout, you will see the oil warning light, circuit breaker, power outlets, and voltmeter. It also comes with a two regular 120V plug outlets that allow you to hook it up to an RV or charge your batteries. The runtime on gasoline usually is 10 hours and users will enjoy 20 hours of runtime on propane.

  • Dual fuel technology offers efficiency and reliability
  • Comes with a durable, heavy-duty frame
  • Easy electric start
  • The generator has an extended runtime depending on the type of fuel
  • Provides a variety of sockets
  • Doesn’t run for long when running on gas

2. Champion 3400-Watt Hybrid Fuel RV

Champion 3400-Watt Dual Fuel RV Ready PortableChampion 3400-Watt generator is easy to use which makes it a top seller in most stores. It comes with an electric start option and pulls cable option for convenience. The low-oil auto-shutoff is the other feature that makes this device easy to operate.

RV enthusiasts will also find this portable generator quite practical. The Champion is fully RV-ready as it comes with a special RV outlet. What’s interesting is, despite it being small and compact, it is powerful enough to run most 15,000 British Thermal Unit (BTU) RV air conditioner. Since it is parallel-ready, you can use it by hooking it up to another Champion generator that has at least 2800 watts to enjoy a 50A RV outlet.

The Noise level being a primary consideration especially for people looking for a generator that will be used at home, the generator stands out as a better option. For a generator this powerful, at 59 dBa, this is one of the quietest generators. Therefore, this is the ideal generator if your activities are around other people nearby.

The dual fuel technology means you can operate your 3400-watt portable generator on gasoline and propane. This generator comes with a fuel selector dial which allows you to switch fuels with a quick turn of the dial easily. What makes the generator even more efficient is that fact that it holds 0.6-quarts. It also has a low shut-off sensor making it one of the safest generators in the market today.

  • It is light in weight and easy to carry around
  • The electric start makes it ideal for new users
  • Quiet for the power it generates
  • Fuel efficient
  • Doesn’t come with a remote start like its predecessor

3. Pulsar Portable Generator with Dual System

Pulsar 10,000W Dual Fuel Portable GeneratorThis is a high-value model from Pulsar that not only offers performance but also guarantees reliability. The Pulsar Dual Fuel Portable Generator has some of the most valuable features you will always want to have in a generator. The main reason why anyone would want to buy a generator is to have power.

That is precisely what you get when you switch on this generator. Regardless of the fuel you use, the power comes from a 420cc, OHV,single-cylinder,15 HP,4-stroke, air-cooled engine.

The dual fuel capability offers convenience and adds value to this generator. The large  6.6-gallon tank that comes with this machine is ready for unleaded gasoline. However, you can still hook up a tank of liquid propane gas by using the included hose. Switching from propane to gas and vice versa while the generator is still running is the most straightforward task thanks to the switch and go feature. This means that you can still run your device for more than 24 hours if you so desire.

Most people who look for portability in machines will always keep off heavy generators. However, the Pulsar Portable Generator has a wheel kit and a handle that makes transporting it an easy task. Although this is a 209-pound machine, the wheels are strong enough to carry the weight.

This being a modern generator, starting it up is easy, and anyone can do it as it comes with an electric push button. But in case the electric button fails, you can still use the recoil starter backup. Operating the controls is straightforward despite this being one of the most powerful generators in this list. This generator also a reliable powerhouse that will keep all your appliances, devices and tools running since it comes with different outlets to plug in.

  • Large 6.6-gallon tank for an extended runtime
  • Easy to switch between fuels
  • Portable generator
  • Has a lower wattage rating when using LPG

4. Westinghouse Generator

Westinghouse WGen3600DF Dual FuelOther than just having the option to use either propane or gasoline, the Westinghouse Dual Fuel generator provides a portable and powerful generator. Just like other modern machines, this one also offers the convenience of an electric-push start button.

What’s more, is that it also has a key-fob remote that lets you witch it on or off from anywhere in the house. You don’t need an adapter if you want to use it to your RV as it is equipped with a TT-30R 120V outlet that supplies power.

This generator perhaps one of the best equipment you need to carry along on that long trip. One full tank can power all the connected devices for 18 hours making it the ideal tool when there is a power outage or when you have projects that need regular electricity.

If you are the type of a person that prefers working on a full tank, then the Westinghouse generator is big enough to take in four gallons of fuel. It also has a fuel gauge that lets you see how much fuel you still have before it goes off. The cast-iron engine sleeve also makes the engine perform better than the ordinary generator. You don’t have to worry about running out of fumes since it has an automatic low oil shutdown feature.

  • RV and camper ready. You don’t need any adapters
  • Easily switch to gasoline or propane
  • Electric start with a push of a button
  • Handles are flimsy

5. Sportsman GEN4000DF

Sportsman GEN4000DFOther than just the budget price that attracts customers to the Sportsman GEN4000DF, there are also features that make this device stand out. This is a well-built generator with a decent capacity and power. This is a two feet tall and 17 inches long machine that weighs about 102 pounds.

Although this may be one of the most cumbersome generators in this list, it comes with handlebars that are conveniently placed to lift it. Although it doesn’t come with a wheel kit, there is a provision for that, and you can buy it separately to ease movement.

The panel design is also simple and may be the best design for those who don’t like sophisticated looks. The simple design also means you can operate the machine without getting confused. The buttons are all placed for users to quickly identify. Just like other devices mentioned above, this generator is also easy to switch between gas and propane by turning the fuel live vale off and close the chock. If you want to use gas to power up your machine, adjust the chock, then turn on the fuel line after you have disconnected the propane.

The starting wattage of 4000 watts and running wattage of 3,500 watts may not be the highest but is still powerful enough to get the essential things around you running. You can take it with you in your RV, and you will be confident that the 3,500 watts will power your 15,000 BTU air conditioner. However, for the best performance, it is recommended that you use it with 13,500 BTU air conditioners.

Performance-wise,this machine offers users 10 hours of runtime which is long enough to keep your electrical appliances on the move. Safety is also a critical feature that makes the Sportsman GEN4000DF stand out. It has a low shutoff feature that turns the generator off when the oil runs low.

This means that you will not run the risk of a breakdown that’s usually the case when the tank dries up. It also has an overload protection ability. Other than that, the circuit breaker in the Sportsman GEN4000DF shuts it down in case there is an overload. Therefore, all the appliances that are connected to this machine are free from damage.

  • Environment-friendly
  • Easy to operate
  • This Generator comes with safety features that safeguard your electronic appliances
  • Enough runtime
  • Doesn’t come with a freewheel

The Differences Between Single, Bi-Fuel and Tri Fuel Generator

The generator you choose to light up or heat your home or business depends on your needs and preference. Therefore, before selecting a generator, it is crucial to understand the different types available in the market. They are three types of electric generators: the single fuel generators, dual fuel, and the tri-fuel generators. Here is a look at what sets each one of them apart from the other.

Electric generators normally run on four types of fuels including liquid propane, gasoline, natural gas, and diesel. A single fuel generator is different from other types of generators as it only uses one of these fuels; in most cases, it works on either gasoline or diesel. Dual fuel generators on the other and will run on two fuel types.

Therefore, you can easily use a different type of fuel if the one you are used to becomes scarce. This means that if your dual fuel generator uses propane and it runs out of this fuel, you can use gasoline instead. The fact that this type of generator also runs on propane means that it is different from the single fuel generator since propane offers clean-burning benefits.

Just as the name suggests, a tri-fuel generator uses any one of three fuel types mentioned above. Therefore, you can run your generator on gasoline, natural gas or propane if you so wish. Just like the dual fuel generator, the tri-fuel is also preferred by users for its convenience when one type of fuel is scarce.

Are These Type of Generators Good?

It is clear that multi-fueled electric generators are the most preferred than single fuel counterparts. Here is a look at some of the benefits users stand to enjoy when they choose a dual fuel generator.

Versatility and efficiency

Since a dual fuel generator uses two types of fuel to generate electricity, it means that you can use a cheaper alternative when one fuel becomes expensive to acquire. Therefore, you will stand a chance of saving on cost especially if you are using the generator to run your business.

The efficiency of this type of generator is also overwhelming. It can provide stable electric power for all your electrical appliances for a longer time.


You will also enjoy the durability that comes with a dual fuel generator in terms of electric power supply. Since they have two tanks or storage units, you can let your generator run on one fuel then automatically switch to the next one if the previous one runs out. This means that there will be no interruptions or power blackouts in your business.


Since this generator switches automatically when one fuel reservoir runs dry, this means that you don’t have to stop your errands from going and checking it.

Also, you could start with gasoline then, later on, change to propane. This gives you the chance to make use of a fuel that operates best under some weather conditions and keep aside those that don’t. This means that you will be ahead of your business competitors in every manner.


Natural gas is known to burn cleaner than diesel; therefore, a mixed fuel means there will be lower emissions than a generator that is only powered by diesel. You don’t have to invest in a new genset if you want to meet guidelines for non-emergency use. Therefore, you stand a chance of qualifying for a cost-saving and eco-friendly operations when you make use of this type of generator.

Availability of natural gas

The availability of natural gas is the other potential benefit of a dual fuel generator. It is essential to understand that a good number of industrial businesses already have a natural gas supply readily available. Since this supply does not need any storage, it eliminates the need to maintain and the space occupied by large fuel tanks. Therefore, in case there is an emergency, the natural gas will always be available.

Less expensive

Since natural gas is currently less costly as compared to diesel, using a dual fuel generator becomes the ideal solution for people who are budget conscious. It is also essential to understand that natural gas burns cleaner than diesel. Therefore, your generator will be subjected to less routine maintenance which is different from generators that use diesel.

What to Look When Choosing a Bi-Fuel Generators

Since there are thousands of brands to choose from in the market, getting the best from the rest may be the most laborious task for you. Although most customers will tend to look at the price and the outward look of the generator, there are crucial aspects you need to consider when choosing this generator. Here is what you need to consider.

1. Power and Size

Size is commonly the first thing customers look at when looking for a dual fuel generator. Although most of the excellent models come in large sizes, there are small ones that also offer outstanding features. Therefore, consider the total wattage and the weight for portability.

2. Noise Level

If you are buying a generator for domestic use then you need to ensure the noise level is low for your neighbors’sake. A machine that emits noise less than 65dB is considered neighborhood friendly.

3. Fuel efficient

As you enjoy uninterrupted power supply, you don’t want to spend a fortune on fuel. Therefore, when looking for a generator, choose one that has the best engine size for your needs.

4. Durability

A good number of generators will come with a steel bearing that offers durability. You need a reliable and robust machine that will stand the vibration and the adverse weather conditions.

5. Warranty

This being a mechanical device, it is prone to breakdowns, and you don’t want to spend more on repairs. Therefore, it is essential that you choose a dual fuel generator that has a warranty.

6. Safety

The fuel that powers a dual fuel generator is flammable, and therefore safety considerations must be taken into account. Make sure the machine tightly locks in all the combustible materials. Sensors are also a good safety feature that ensures the safety of the user.

The Verdicts

With that said, you now have a comprehensive list of the top 5 dual fuel generators to choose. The above-mentioned machines have been highly reviewed and guarantee you nothing short of performance.

When choosing any of these generators, ensure you evaluate your needs and choose according to the number of appliances that will be connected to the device. Also, consider the runtime especially if you want to power your business and still stay in the competition. author Andreas Kalt
Andreas is a DIY enthusiast who specializes in home improvement and interiors. He believes each project is a puzzle which needs to be solved. Therefore he believes using the right tools is the key to make it efficient.
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