Top 7 Best Dual Fuel Generators Review - Expert Choice

Generators with dual fuel options are the best-selling Generator models in the USA as of 2024. They are in more demand because You can run these generators on gas or propane according to your preferences.

If you want to power your house you can convert your generator to natural gas which can be easily available. But in the case of an emergency, you can convert it to propane to power your house or RV.

I and my team tested the 16 best dual-fuel generators for homes and interviewed almost 13 to 15 RV owners and some domestic people.

We shortlist the top 7 Dual fuel Generators to specify your research and that will also help you to make your decision easier.

This article will let you pick the most reliable dual-fuel generator for your home, or RV by explaining some of the important specifications, features, pros, and cons.

Is Dual Fuel Generator Worth It?

A dual-fuel generator assures that you will have electricity no matter what happens outside. Natural calamities such as hurricanes and earthquakes can cause gasoline supplies to be disrupted. If you rely on that one form of fuel, you may be limited to what you have at home but the dual fuel option will save your life because it has the second choice to select.

Dual Fuel Vs Single Fuel Generator

Dual-fuel and single-fuel generators work similarly, but they differ in the kind and number of fuels that may be used to power the machines. Natural gas, diesel, gasoline, liquid propane gas, and solar energy can all be used in these systems.

A dual power generator may switch between multiple fuel kinds automatically to extend its runtime, whereas single fuel generators can only utilize one fuel type. The switchover occurs based on fuel availability and the most efficient fuel source at the moment.

What To Look for When Buying A Dual Fuel Generator?

There are several aspects to consider while shopping for a dual-fuel portable generator.

You may perhaps have explored a few alternatives. However, while selecting a dual-fuel generator, you must properly investigate its qualities and weigh its significance about your application.

There is a good probability that some features provided in a particular product will not be required in your circumstance. This detailed shopping guidance is provided to avoid such a scenario.

You may learn about each of the qualities in detail here and select which ones you require the most in your dual-fuel generator. For an appropriate decision, make sure you read the buying guide carefully. There are several aspects to consider while shopping for a dual-fuel portable generator.

1. Fuel Capacity

Dual fuel generators feature specialized fuel tanks to store fuel since they are fueled by gasoline and propane. Each gasoline tank has its unique capacity, thus they are not all the same. This capacity is expressed in gallons. A 10-gallon tank, for example, can only carry 10 gallons of fuel at a time.

Having a large-capacity tank will benefit you in a variety of ways. You won’t have to bother about recharging the generator every now and then if you have a large fuel tank, and you’ll be able to enjoy uninterrupted power output. Remember that huge gasoline tanks are only available as a premium option.

2. Rated and Peak Output

When purchasing a generator for backup power, you must consider the power available at the generator’s output. On each dual fuel generator, there are two separate output ratings: rated and peak output. However, these figures differ for gasoline and propane. As a result, each generator will produce four distinct output values.

This can be perplexing, but don’t be concerned. When purchasing a generator, if you simply examine the peak capacity for both fuels, you will automatically receive a greater operating watts output. For example, if you select a high peak value for gasoline, you will also receive a higher peak value for propane as well as greater running watts.

3. Generator Size

This is an important consideration if you want to move the generator around for different purposes. If you are contemplating a heavy-duty generator, make sure you evaluate the size and weight of the generator.

Best Dual Fuel Generators

Heavy-duty generators are often larger and heavier than low-powered generators. As a result, transporting a heavy-duty dual-fuel generator, especially while the fuel tank is full, might be difficult. On the other hand, if the generator is small in size, you will observe that the power capacity and fuel capacity are both reduced.

4. Noise Levels

Internal combustion of gasoline or propane powers dual-fuel power generators. Because this combustion is a continuous process, generators emit a large quantity of noise when they are in operation. It is impossible to locate a fuel generator that runs completely silently. You can, however, use a dual-fuel generator with a reduced noise rating.

If the generator is creating too much noise, it might cause a lot of disruption, which can harm your application. As a result, you should always look for a generator with a lower noise rating. Also, bear in mind that if you use propane as your primary fuel, you won’t have to worry about noise levels as much because propane runs quietly.

5. Engine Efficiency

Each dual-fuel generator contains an engine that utilizes gasoline or propane to create energy. While various power output numbers may appear identical, fuel consumption will vary due to engine efficiency. Engine efficiency essentially shows how effectively fuel may be spent to generate energy.

If the engine is inefficient, you will run out of gasoline quickly. You will also be exposed to a large number of hazardous exhaust gases as a result of faulty fuel combustion. As a result, even if you choose a low-power engine, be sure it is economical in terms of fuel consumption.

Best Dual Fuel Generators Brands – Quick Comparison

1. Champion Power Equipment 76533 Dual Fuel Generator – Best Generator For RV

Champion Power Equipment 76533 Dual Fuel Generator – Best Generator For RVThis Champion dual-fuel gas and propane-powered generator is our top choice for RV lovers since it can easily power the whole RV.

What I love the most about this model is its dual fuel option that is easy to operate and effortlessly switches to desirable fuel types.

I have tested this generator on an RV and I am falling in love with this supermodel because of its performance. I ran Champion 76533 for 3 days on 2 tanks of propane. I didn’t use it on nights so you can easily understand it gives power to my RV for approximately 12 to 13 hours a day.

I ran an A/C, a small refrigerator, a coffee maker, small lights, and some of our laptops and mobiles, it ran smoothly without any problem. You can easily move it around without any problem.

I would recommend Champion Power Equipment 76533 to everyone, especially to an RV owner because it’s easy to understand instructions and a great value with this price tag.


Brand Champion Power Equipment
Wattage 3800 watts
Item Dimension 26.3 x 24.8 x 22.9 inches
Color Blue
Voltage 240 Volts

Locking Fuel Selector Switch

It has a locking fuel selector switch that prevents you from mistakenly switching fuels when plugging in appliances, as well as an electric motor start switch and an outlet surge protector built-in.

Run Time

The generator produces 3,800 W of gasoline, has a surge capacity of 4,750 W, and can run for up to 9 hours on a full tank.

Performance on propane

If you operate this generator on propane, it can produce up to 4,275 surges and 3,420 continuous watts. As a result, there isn’t much of a difference in the generator’s performance on gas and LPG.

  • Champion provides a three-year guarantee on this device, but the business also provides lifelong technical assistance.
  • On gasoline, you can get up to 9 hours of runtime, and on propane, you can get up to 10.5 hours of runtime.
  • Although just having two AC outlets might be restrictive, the generator also has a 30-amp RV-ready plug.
  • Despite its open-frame construction, this propane generator is relatively quiet due to its engine design.
  • This generator has only two AC outlets.


2. Durostar DS10000EH Dual Fuel Portable Generator – 50 State Approved

Durostar DS10000EH Dual Fuel Portable Generator – 50 State ApprovedIf you’re looking for a versatile generator that can power anything from your air conditioning to your lights, Home backups to RVs the Durostar DS10000EH is sure to catch your eye. It is not just dual fuel, but it also boasts an all-metal design that I am confident will endure a long time.

Well, after conducting many interviews about this product finally I ordered it to check it out personally. I and my team were a little nervous that it could meet our expectations or not.

When it was delivered to our door it was shipped without any damage. We follow all the instructions that are quite easy to understand while assembling this generator.

You can start this genny with a single pull without any problem.

So I ran a freezer, a refrigerator, 2 fans, a TV, and small lights all at once on gas. We noticed Gas can bear a heavy load easily with less noise. You can run it on gas or propane according to availability. You can power your whole house with this amazing Durostar DS10000EH Dual Fuel Portable Generator with the ease of its advanced easy to understand instructions.

One problem I found is the handle is quite weak so you will feel a little delay while moving it. Otherwise, it’s a great investment because this model is getting you from the blackout.


Brand Durostar
Wattage 10000 watts
Frequency 60 Hz
Color Red / Black
Voltage 120 Volts

Read More: Durostar DS10000EH Generator Review

Provide Enough Power

It’s not flashy, but it has enough power to get you through any power loss.

OHV Engine

The DS10000E’s air-cooled, 420cc OHV engine can produce 8,000 watts.


It runs for 10 hours at 50% capacity, allowing you to go all night without recharging its 8.3-gallon petrol tank.

Three-Prong Outlets

However, it only has two 120v three-prong outlets, limiting the number of appliances that may be powered while utilizing it.

  • It is powered by a 4-stroke, 16-horsepower air-cooled engine with an idle control for fuel savings in low-load situations.
  • With the four different types of outlets, the overall maximum outlet configuration is nice.
  • This one runs on gasoline and has a tank capacity of 8.3 gallons, allowing for nearly 10 hours of use at 50% load.
  • It contains an idle control that changes the engine speed when the load is released, conserving fuel and protecting the engine, as well as low oil shut-off to safeguard the engine.
  • It is not the cheapest option.
  • It has low fuel efficiency.


3. DuroMax XP12000EH Generator – Powerful Engine

DuroMax XP12000EH Generator – Powerful EngineThis model of Duromax is the best-selling in the USA because of its advanced features and its CARB approval.

One of the many outstanding advantages of the DuroMax XP12000EH is the dual fuel you can run on propane or gasoline according to your feasibility. It also boasts a sturdy and hefty style that is ideal for a variety of outdoor jobs, home backups, or an RV.

The best part of this generator is its ability to run the whole house with greater peace of mind than a general whole-house generator.

The DuroMax XP12000EH Dual Fuel Generator also has a keyed electric start, you can start/stop with a single click, which is a nice feature. You will no longer have to crank the device to start it.

This is easy to move around with its awesome moveable handle and wheels on the back. It’s also quiet and makes a little noise when you put a heavy load on it that is bearable. You can easily operate it by following the given instructions on the box.

This Duromax generator is a solid choice with lots of power and easy dual-fuel technology.


Brand Duromax
Wattage 12000 watts
Item Dimensions 30 x 29 x 26 inches
Color Black and Blue
Weight 224 pounds

MX2 Technology

One of the most intriguing characteristics of this Duromax generator is its MX2 technology. Each outlet on the unit’s outside may operate at 120V or 240V at the same time.

Dual Fuel Technology

As previously indicated, the DuroMax XP12000EH Dual Fuel Generator employs dual-fuel technology. As a result, you may operate it on either propane or gas, giving you additional fuel flexibility.

Low Oil Shutoff

If the generator gets out of fuel, it will automatically shut down. The machine will shut down to protect itself if the device detects low oil levels.

All-Terrain Tires

This generator has all-terrain durable solid-fill tires, making it ideal for outdoor applications. It will readily travel all terrains, from concrete roads to muddy settings.

  • The DuroMax Portable Dual Fuel Generator provides 9,500 watts of operating power and 12,000 watts of peak power at a noise level of 72 decibels on a full 8.3-gallon tank of gasoline.
  • The DuroMax generator is powered by an electric ignition or a backup recoil cord. It automatically turns off when the oil runs low for enhanced security.
  • It is supported by a steel frame and two heavy-duty wheels for easy transportation around the camping, job site, or house.
  • It also has copper windings, which are great for extending the generator’s lifespan over time.
  • Under pressure, wheels may flatten.
  • This generator lacks warranty.


4. Firman H08051 Extended Run Time Generator Electric Start – Most Efficient

Firman H08051 Extended Run Time Generator Electric Start – Most EfficientFirman is a well-known brand that creates reliable power generation equipment that is steady, efficient, and clean. The company works in over 100 countries and distributes its products there.

Firman’s dual fuel generator is powered by a 439CC Firman engine capable of providing 8000W of operating power and 10000W of surge power to suit your emergency power needs. The generator has a big fuel tank capacity of 8 gallons and can run various appliances for up to 14 hours on a single charge.

It has an operating power of 7250W and a peak output of 9050W when powered by propane.

For longevity, the dual fuel generator has a tubular roll cage frame construction. The generator is carried with ease thanks to an ergonomically designed cushioned handle. Furthermore, the two wheels allow for optimum portability. To power this generator with an external propane tank, you receive a 5.5-foot propane pipe.

Check This Guide: Best Firman Generators


Brand Firman
Wattage 8000 watts
Item Dimensions 32 x 29 x 28 inches
Color Yellow and Black
Weight 225 pounds

Efficient Power

This generator is powered by a 208cc engine with a starting power of 4,550 watts and a running power of 3,650 watts on gas. On the other side, gas provides 4,100 starting watts and 3,300 operating watts.

Long Run Time

The engine’s moderate power contributes to this unit’s suitability for fuel conservation. Depending on the amount of your load, the five-gallon gasoline tank can provide up to 14 hours of operating time. As is always the case, the less energy you use, the longer your gasoline will last.

Low-Oil Shutdown

With the additional low-oil shutdown, you can ensure that your generator is always safe. Instead of needing to monitor the generator, it will shut down automatically if the oil levels fall considerably.

  • This generator provides reliable power for up to 14 hours.
  • One of the most appealing aspects of the Firman H03652 Dual Fuel Portable Generator is its mobility.
  • Instead of purchasing a separate hose, this item includes a longer propane hose.
  • Firman offers a 3-year limited guarantee from the date of purchase on this dual-fuel generator.
  • The handle is not durable.


5. Pulsar G12KBN – Quietest Generator

Pulsar G12KBN – Quietest Generator

This Pulsar dual-fuel generator which has six outlets, four AC breakers, and two main breakers could come in handy after natural catastrophes or other emergency scenarios.

This whole house generator is very easy to assemble and very easy to start with a single push.

The electric push-start makes it simple to turn on this machine, and the 10-inch wheels make it simple to move this 209-pound equipment.

This pulsar G12KBL is powerful enough to handle heavy loads with no issue at all.

This genny power my whole houses like freezer, A/C, a TV, small lights and two fans and some other things. It is the quietest one among all the generators that I have reviewed.

It ran for 44 hours continuously on a 24-gallon propane tank smoothly.

The purpose of selecting pulsar among all the dual fuel inverter generators is the ease of purchasing parts in the future if needed.

It is a very good value among all the generators we paid for and you will also not regret having this in your place to power your whole house when the electricity goes out.


Brand Pulsar
Running Wattage 9500 watts
Starting Wattage 12000 watts
Fuel Type Gas, liquefied petroleum gas
Weight 209 pounds

Control Panel

Four 120V 20A AC outlets, one dual 120V/240V 50A twist-lock outlet, and one 12V DC plug are provided on the control panel for powering DC equipment, gadgets, or RVs.

Easy To Move

The gadget is lightweight and portable, with a drop-down handle and 10′ inch-never-flat wheels.


The small form of the generator makes it easier to store and transport than many other generators in this price range.

  • The dual-fuel capability is ideal for emergencies where fuel options may be restricted.
  • The engine is a single-cylinder, 457cc OHV with an electric start.
  • There are numerous safeguards in place.
  • A low oil shutdown mechanism, a 3-in-1 digital meter, and an automated voltage regulator that activates anytime the generator is turned on are among the features.
  • This generator is very loud.
  • This generator is very heavy.


6. WEN DF1100T Dual Fuel Portable Generator – Best 10,000-Watt Generator CARB Compliant

WEN DF1100T Dual Fuel Portable Generator - Best 10,000-Watt Generator CARB Compliant

The WEN DF1100T is a dual-fuel generator that lets you quickly switch between fuel types for longer operation and lower fuel expenses. WEN generators receive rave reviews from buyers all across the country. They provide the perfect performance and, on average, sell for less than the competitors. This one is no different.

This quantity of electricity will be more than enough for you to utilize most of your important equipment during power outages or natural catastrophes. This amount of electricity is more than adequate for a backup power supply. This equipment also has an 8-gallon gasoline tank that can run continuously for 7.5 hours at 50% load. The WEN DF1100T is the best dual-fuel generator. With a 20lb propane tank, this generator can operate for 3 hours at 50% load.

There are three outlets and a twisted lock socket on the WEN DF1100T Portable Generator. The generator is covered by a two-year guarantee. As a result, the WEN DF1100T Portable Generator is an ideal power backup solution for locations that demand steady power.


Brand WEN
Running Wattage 8000 watts
Starting Wattage 10000 watts
Fuel Type Gasoline, liquefied petroleum gas
Weight 214 pounds

Easy to Carry

Another thing to keep in mind about fuel is that you should not overfill the tank, especially if you want to operate the engine on gasoline. Because it expands, you should avoid filling the tank to the top.

Tank Capacity and Runtime

The tank’s total capacity is 6.6 gallons (30 liters). This is a significant amount that demonstrates the WEN DF1100 capabilities T’s yet again. The tank’s size assures that the generator will be able to run for 8.5 hours at 50% load.


WEN generators are often less expensive than most of their comparable-sized competitors. The cheapest WEN generator will set you back roughly $200, while the most costly one would set you back over $1600. A WEN generator costs around $540 on average. WEN inverter generators are slightly more expensive than their open-frame equivalents, as is customary.

Power Output

The WEN DF1100T can run on both gasoline and propane. This is especially useful if you are running low on one of those fuel kinds. You may always switch them on and off to ensure that your appliances have a backup power supply. When using gasoline, the WEN DF1100T has a running wattage of 8300 and a peak wattage of 11,000 In the event of running the generator on propane, the metrics are 7500 and 9500, respectively.

  • This WEN generator with the dual technology can run at maximum capacity for 11.5 hours using propane and gasoline that can be turned on and off with the click of a button.
  • The 47-inch liquid petroleum gas (LPG) line allows for simple switching between sources of power.
  • Weighing 214 pounds, this machine has an electric start, an automatic energy controller, and excess protection.
  • Breakers prohibit the use of the whole power supply.
  • This generator is difficult to learn.


7. WGen9500DF Dual Fuel Portable Generator – Better Efficiency

WGen9500DF Dual Fuel Portable Generator – Better Efficiency

Westinghouse Power Equipment has been in business for almost a century. They have a reputation for developing dependable and reasonably priced product lines. The Westinghouse WGen9500DF is a popular dual-fuel generator in this power range. It is powered by a Westinghouse 457cc 4-stroke OHV engine.

We purchased it to test for a whole-house backup generator and it ran like a champ. When it delivers to our door it was well organized and the instructions were very clear to follow. we easily assemble within no time.

we test it to run on both modes; gasoline and propane. It generates power equally in both modes, but on gas, it runs more smoothly and can easily bear heavy loads with less noise. The noise level is not as bad as people reviewed it.

we can easily move it around with medium effort its rubber wheel and handle are a lifesaver.

It has enough power to run a freezer, an A/C, two fans, a few small lights, and a TV on a full gas tank for 10 to 12 hours smoothly. Produces enough power and does not slow down on heavy loads.

I would recommend it after personally using it. its advanced technology Remote starts works great and is very convenient.


Brand Westinghouse Outdoor Power Equipment
Wattage 9500 watts
Item Dimensions LxWxH 27.2 x 26.1 x 26.5 inches
Item Weight 244 Pounds
Voltage 12 Volts

Ease of Use

In terms of comfort and ease of use, we believe the Westinghouse WGen9500 offers the whole package. It’s simple to get started. The electric and remote start technologies make this operation easier. In the event of a battery failure, the recoil starting capability comes in handy.

Safety Features

It’s a large generator with a lot of power output, but that doesn’t mean it can’t power or charge little and delicate devices. It has an excellent harmonic rating, which means your electronics will be safer, albeit it is not as effective as an inverter-type generator.

Maintenance and Warranty

There isn’t much to do in terms of maintenance on the generator other than replacing the fuel and maintaining the oil gauged. It’s a low-maintenance generator since a full tank of gasoline may last for 12 hours.


Westinghouse generators appear to be more powerful and long-lasting than many more costly generators.

  • A larger fuel tank provides greater runtime, but it also influences the weight and mobility of the generator.
  • The Westinghouse Wgen9500df has a gas tank capacity of 6.6 gallons and a propane tank capacity of 20 pounds.
  • At 50% load, the Westinghouse Wgen9500df can run for 12 hours on a single tank of gas. When running on propane, it can operate for up to 7 hours at 50% load.
  • The Westinghouse Wgen9500df may run on propane as an alternative fuel.
  • This generator lacks co sensor.



Best Dual Fuel Generator – FAQs

Is it cheaper to run a generator on propane or gas?
Propane generators are inefficient, generating fewer BTUs per gallon of fuel than gas generators. However, because propane burns cleaner than gasoline, it is beneficial for the environment as well as your generator.
What is the most powerful dual fuel generator?
The DuroMax XP12000EH is the most powerful dual-fuel generator on our list and is powerful enough to run a whole house, an RV, or a job site.
Do dual fuel generators run quieter on propane?
Propane generators are quieter than gasoline generators. If you have a somewhat quiet generator, such as the Honda, it will be even quieter on propane.
Is it better to run a dual fuel generator on gas or propane?
Propane generators are inefficient, generating fewer BTUs per gallon of fuel than gas generators. However, because propane burns cleaner than gasoline, it is beneficial for the environment as well as your generator.


To Sum Up

If the electricity goes out unexpectedly, a dual-fuel generator might come in handy. The main advantage of a dual-fuel generator is the ability to utilize a secondary fuel if the primary fuel is unavailable. There are several dual-fuel generators available on the market. But we shortlist the top 7 Dual-fuel portable inverter generators.

We give 5 stars to DuroMax XP12000EH as it runs more efficiently on both dual fuel modes and is powerful enough to generate electricity for the whole house with less noise.

On our second recommendation list, we give top priority to Champion Power Equipment 76533 because it is the best-selling model in the USA based on its advanced easy to easy-to-understand features and long-lasting durability.

You can read more about the Features, descriptions, pros, and cons of these generators to make a wise and affordable purchase according to your needs. A buying guide is also available to assist you with your purchase.

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