The Best Dual Fuel Generators of 2023

Do you live in an area that frequently experiences power outages? While some may think they can survive without electricity, modern life heavily relies on it. From refrigerators to computers, a power outage can lead to food spoilage and disrupted routines.

This is where a generator comes in as a lifesaver, specifically a dual fuel generator. This type of generator provides an extended power supply with two fuel options, ensuring you’ll have access to power when you need it the most.

In this article, we’ll review some of the best dual fuel generators available, considering their power output, noise level, and runtime. We’ll also provide tips on choosing the right dual fuel generator for your needs and maintaining it for optimal performance.

Don’t let power outages disrupt your life any longer. Invest in a dual fuel generator and keep your home running smoothly no matter what. Keep reading to discover which dual fuel generators are the best on the market.

What Is a Dual Fuel Generator?

A dual fuel generator is a smart investment for anyone looking for a reliable backup power supply. Unlike traditional generators that rely on a single fuel source, a dual fuel generator provides the flexibility of using either gasoline or propane, depending on availability and convenience.

During a blackout, a dual fuel generator can power your home’s essential appliances, lighting, and even your HVAC system. With this generator, you can start with one fuel source, such as gasoline, and then switch to propane tanks when necessary. This versatility not only extends the generator’s runtime but also gives you more time to get more fuel before you’re left without power again.

Who Needs a Dual Fuel Generator?

Anyone who lives in an area that experiences blackouts will benefit from buying a dual fuel generator. Whether it’s due to an overworked power grid or bad weather conditions, losing electricity can be inconvenient and uncomfortable.

Some homeowners may think they don’t need a generator, especially if they have a small house or only experience a few power outages per year. However, being without power, even for a short time, can be disruptive and costly.

A dual fuel generator provides a reliable backup power source regardless of your house size or the frequency of outages. It can keep you comfortable during extreme heat or cold and prevent you from losing money due to spoiled food.

Plus, it’s not just for small houses. You can use a dual fuel generator for larger houses by investing in several of the same types to power your entire home during a storm.

However, before buying a dual fuel generator, it’s important to consider your exterior space since generators can’t be run indoors. Make sure to choose a model with several outlet options to support your lights and large appliances.

How We Evaluated Dual Fuel Generators

With so many generators available, choosing the right one for your needs can be overwhelming. Luckily, we’ve done the research for you and narrowed down the field to the seven best dual fuel generators on the market. Our selection process considered crucial features like wattage output, fuel tank capacity, noise level, and overall efficiency.

Whether you need a portable generator for your camping trip or a heavy-duty option to power your entire house during a storm, you’ll find a suitable option on this list. So don’t settle for subpar backup power when you can invest in a reliable dual fuel generator.

Our List of the Best Dual Fuel Generators of 2023

1. Best Overall: Westinghouse WGen9500DF

2. Best Heavy-Duty: DuroMax XP12000EH

3. Best Electric Start: Champion Power Equipment 200988 4500-Watt Dual Fuel

4. Best CARB Compliant: WEN DF475T Dual Fuel 120V/240V Portable Generator

5. Also Consider: Pulsar G12KBN

6. Best Small Dual Fuel Generator: DuroMax XP5500EH

7. Best Portable Dual Fuel Inverter Generator: Westinghouse iGen4500DF

Reviews of the Best Dual Fuel Generators of 2023

Since all the generators in our round-up are dual fuel options, they share a similar efficiency level since they can run on gasoline and propane. However, it’s best to consider other factors like power output, noise level, and overall performance to make an informed decision.

Our comprehensive reviews provide a detailed analysis of each generator’s strengths and weaknesses, helping you find the one that fits your needs.

1. Best Overall: Westinghouse WGen9500DF

Westinghouse Outdoor Power Equipment 12500 Peak Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready

The Westinghouse WGen9500DF is a powerful dual fuel generator that stands out among its competitors. With a sizable fuel tank of 6.6 gallons, it can run for 12 hours continuously on gasoline. During this time, it produces a whopping 9,500 running watts and 12,500 peak watts, providing sufficient power to run your household appliances during an outage.

The generator’s engine features a low oil shutdown feature, which prevents damage to the engine when the oil level is low. The LED display is a nice touch, allowing you to monitor the lifetime hours, voltage output, and frequency, indicating how hard the generator works. Moreover, starting the generator using the remote start key fob is incredibly easy.

The generator has four outlets to cater to your power needs, including two 120-volt outlets, one transfer switch 120-volt outlet, and one 120/240-volt outlet. Each outlet has a protective cover to prevent electrical accidents while in use.


  • Produces 12,500 watts of peak power on 6.6 gallons of gas
  • Has an LED screen to showcase relevant running data
  • Low oil shutdown protects your family and prevents generator damage
  • A remote start key fob simplifies the electric starting process


  • Sometimes the starter engages, but the engine won’t run
  • It will cut out on the gas setting and require a switch to propane

2. Best Heavy-Duty: DuroMax XP12000EH

DuroMax XP12000EH Generator-12000 Watt Gas or Propane Powered Home Back Up & RV Ready

Anyone needing a heavy-duty generator will get all the power they need from the DuroMax XP12000EH. This option is one of the most premium on the market, but you’ll pay more for that privilege.

People who want to power most of their houses will appreciate the 12,000 watts of peak power using gasoline fuel. The running power is 9,500 watts for gasoline, but DuroMax doesn’t specify the stats for propane usage. When you use gasoline, you’ll hear a noise level of 74 decibels, which is about as loud as a hair dryer. For how much power you get, the volume is tolerable.

The generator comes with heavy-duty wheels, but since the appliance weighs 234 pounds, it slightly flattens the wheels when you roll it around, so you’ll want to transport it carefully and refill the tires often.


  • The gasoline tank holds 8.3 gallons
  • Produces 12,000 watts of peak power
  • Has electric ignition plus a recoil cord
  • Includes three 120-volt outlets and two 240-volt outlets


  • Fairly expensive option
  • The generator is too heavy to roll smoothly on the tires

3. Best Electric Start: Champion Power Equipment 4500-Watt Dual Fuel

Champion Power Equipment 200988 4500-Watt Dual Fuel RV Ready Portable Inverter Generator, Electric Start

The Champion Power Equipment 4500-Watt Dual Fuel generator is an affordable and durable backup power option with a compact size that produces just 61 decibels of noise while running. The electric push button makes starting the generator easy.

The generator can produce 4,500 watts of peak power and 3,500 running watts for up to 14 hours when running on gasoline. On a 20-pound propane tank, you can get 3,150 running watts for up to 21 hours. The generator includes three outlet options: 120-volt 30A, two standard 120-volt, and one 12-volt.

While running, the gauge on the generator shows the total run time, volts, and frequency. Additionally, the generator comes with a parallel connector, allowing you to link two generators to better power your house.


  • 2.25 gallons of gas provide 14 hours of power
  • Includes a built-in carbon monoxide detector
  • Two 120-volt outlets, one 120-volt 30A outlet, and one 12-volt outlet
  • Has a USB adapter for outlets


  • Very expensive for its output
  • Internal fuse can blow easily

4. Best CARB Compliant: WEN DF475T Dual Fuel 120V/240V Portable Generator

WEN DF475T Dual Fuel 120V/240V Portable Generator with Electric Start Transfer Switch Ready, 4750-Watt, CARB Compliant

The WEN DF475T Dual Fuel 120V/240V Portable Generator is both affordable and environmentally friendly, as it is CARB-compliant. It operates quietly, producing only 69 decibels of noise during use, making it perfect for use near your house, RV, or tent.

This generator provides 4,750 watts of peak power and 3,800 running watts when fueled with gasoline, while propane offers 4,350 watts of peak power and 3,500 running watts. The generator comes with two 120-volt outlets, one 120/240-volt outlet, and one 12-volt outlet to give you various options for plugging in your appliances.

The generator is easy to transport with rear wheels and a sturdy front handle. However, the electric start system can cause an issue because you must insert a key to turn it on. If the key is misplaced or lost, the generator cannot be used, which can be frustrating during emergencies.


  • Very affordable and efficient dual fuel generator
  • Four gallons of gas provide 11 hours of power
  • Provides 4,750 peak watts on gas and 4,350 on propane
  • Voltage includes 120 and 240 to power various appliances


  • Requires a key to turn on, so you can’t misplace it
  • Doesn’t include outlet covers, so you need to buy a separate cover

5. Also Consider: Pulsar G12KBN

Pulsar G12KBN Heavy Duty Portable Dual Fuel Generator - 9500 Rated Watts & 12000 Peak Watts - Gas & LPG - Electric Start - Transfer Switch & RV

If the first four generators on this list do not meet your specific needs, consider the Pulsar G12KBN dual fuel generator. This compact generator has front handles and rear wheels for easy transport, although due to its weight, you may require assistance.

The generator provides 12,000 watts of peak power and 9,500 watts of running power when using gasoline. For propane, you get 8,550 watts of running power and 10,800 watts of peak power. The gas tank can hold up to eight gallons of fuel and run for 12 hours, which is perfect for running your refrigerator overnight without any worries.

With such a high level of output and running time, the generator offers various outlet options, including five 120-volt outlets, one 120/240-volt outlet, and one 12-volt DC port.


  • Runs for 12 hours and can stay on overnight
  • The gasoline tank holds eight gallons
  • Produces 12,000 watts of peak power
  • Has five 120-volt outlets, one 12-volt DC port, and one 120/240-volt outlet


  • Smells of propane when you use that fuel source
  • Too heavy for one person to move, even with wheels

6. Best Small Dual Fuel Generator: DuroMax XP5500EH

DuroMax XP5500EH

If you need a small yet powerful dual fuel generator, the DuroMax XP5500EH is an excellent choice. It has a steel lift for easy portability and two heavy-duty rear wheels for effortless maneuvering.

Generating only about 69 decibels of noise, similar to normal conversation levels, this generator is an excellent option for those who need to keep it close to their windows or take it on camping trips.

The gasoline output is 4,500 watts of running power and 5,500 watts of peak power. When using propane, the running power drops slightly to 4,275 watts but maintains the same peak power of 5,500 watts..


  • Noise level of 69 decibels
  • The gasoline tank holds four gallons and runs for nine hours
  • Produces 5,500 watts of peak power with both fuel sources
  • Includes two 120-volt outlets and one 120/240-volt twist-lock outlet


  • Heavy despite the small size
  • It isn’t compatible with use for an RV

7. Best Portable Dual Fuel Inverter Generator: Westinghouse iGen4500DF

Westinghouse 4500 Peak Watt Super Quiet Dual Fuel Portable Inverter Generator, Remote Electric Start, Gas & Propane Powered, RV Ready

The Westinghouse iGen4500DF dual fuel inverter generator is one of the most lightweight options, weighing in at just over 104 pounds. Its front handle and rear wheels make it easily transportable, whether you use it at home or on the go.

While its gas tank capacity is limited to 3.4 gallons, it can still produce a peak output of 4,500 watts, sufficient to power most household appliances during emergencies. Additionally, its small size and efficient inverter technology makes it incredibly quiet, producing just 52 decibels of sound while in operation.

One of the most notable features of this generator is its LED screen, which displays useful information like the remaining runtime, fuel level, power output, and lifetime hours of the generator. With this feature, you can easily keep track of how much power is being used and when it’s time to refuel.


  • Includes a remote start option with a key fob
  • Has two 120-volt outlets and a 120-volt AC 30A outlet
  • LED screen shows remaining running time and fuel level
  • Runs for up to 18 hours on 3.4 gallons of gas


  • Expensive for its size and output
  • Heavier than a typical portable generator

What To Look For in a Dual Fuel Generator

While the seven dual fuel generators reviewed above are excellent choices, you may have unique requirements and prefer to explore more options. When looking for the best generator for your needs, it’s important to consider the following factors to make an informed decision.

Power Output

A dual fuel generator uses watts to measure power. The wattage of a generator is represented by two numbers – the peak power output and the running power output. The peak power output indicates the maximum power that a generator can produce in a single instance.

In contrast, the running power output is the average wattage produced while the generator is in use. Plus, the wattage capacity of a generator can vary depending on its size, with smaller generators producing around 1,000 watts and larger models producing up to 12,000 watts.

If you are looking for a dual fuel generator, you may notice that manufacturers sometimes break down the wattage output into propane and gasoline categories. This is because gasoline typically produces a higher wattage output compared to propane.

However, some manufacturers may only provide a single wattage number without differentiating between the two fuel types. In such cases, the wattage number usually refers to the higher gasoline output.

Fuel Capacity

A dual fuel generator offers two power options, which is advantageous in case one fuel type is unavailable or in short supply. However, the fuel capacity of a generator is a crucial factor to consider because it affects the runtime and power output.

Some generators come with a two-gallon fuel storage tank, suitable for low power needs. However, you may need a ten-gallon option for longer runtime and higher power needs. It’s worth noting that a larger fuel tank adds to the overall size and weight of the generator, so you should balance your fuel needs with the available space.

Additionally, the fuel capacity of a generator is independent of its propane supply. Propane is stored in canisters that attach to the generator. The gas flows through a pressure regulator and hose to power the generator, providing an alternative fuel source.

Start Method

When choosing a generator, it’s worth considering the method used to start it up. While not a critical factor, it can impact the effort required to start the appliance.

The traditional method of starting a generator is with a recoil cord, which many people are familiar with from using gas-powered tools like lawnmowers and chainsaws. This involves pulling back quickly on an ignition cord to start the engine. While it can take a few tries to get the engine started, it can be done manually without requiring electricity.

On the other hand, an electric start requires an internal battery to power the generator. To turn on the generator, you flip a switch or press a button, and the battery powers the engine. While it’s easier to do than using a recoil cord start, your generator won’t turn on if the internal battery doesn’t have any charge.

Noise Level

Some homeowners hate the idea of using a generator because they know it will produce a lot of noise, potentially bothering them and their neighbors. However, some generators have a low noise output, so if the volume is one of your major concerns, you’ll want to choose that option.

Manufacturers measure noise in decibels. Depending on its size, a dual fuel generator can produce between 50 and 90 decibels of sound while running. Gasoline operation is louder than propane, which will impact volume, and power output also changes the noise level.

To give you an idea of how loud your generator may be, consider these common decibel levels:

  • Refrigerators are about 50 decibels
  • Normal conversation is about 60 decibels
  • Hair dryers range from 70 to 90 decibels
  • Motorcycle engines are 95 decibels

With those sounds in mind, you can see that your dual fuel generator won’t be annoyingly loud for your family or your neighbors.

Size and Weight

Many people only think about the power output of a generator before they buy it. Wattage is one of the most important considerations, but the size and weight factor in. The size of a generator will impact where you store it and how much surrounding area you have when you use it.

Generators come in various sizes, typically ranging from 22” x 22” x 22” to 35” x 30” x 30”. Checking the generator specifications you intend to buy is crucial to ensure you have enough space for it. You should consider the storage and operating space to avoid any potential issues.

Weight is also an essential consideration when purchasing a generator, as it affects portability. Most generators weigh between 100 and 250 pounds; some are compact but heavy. While weight may not be a significant storage concern, it can be challenging to move the generator if you need to do so frequently.

Therefore, it’s vital to find a balance between getting a powerful generator for your needs and one that is easy to move around. It’s also crucial to consider the power output in relation to the size and weight. You don’t want to buy a generator that is too small to power your home, nor do you want one that is too heavy to move around.

By taking the time to consider the size and weight of the generator, you can make an informed purchase that meets your needs and provides the best value for your money.


When it comes to dual fuel generators, some people prefer to keep them in one location, protected from the elements. However, portability becomes a critical consideration if you need to move your generator from one place to another.

Dual fuel generators are usually heavy, and their hoses and tanks add to their bulk, making them challenging to move around. Therefore, it’s essential to select a generator that comes with a wheel kit or can add one.

Many manufacturers include wheel kits with their generators, allowing you to install them quickly when you unload the generator. If your generator doesn’t have wheels, you can buy them separately to improve portability.

In addition to the wheel kit, a lift hook bar can also enhance portability by allowing you to raise the generator from the ground to the second floor of a building. This feature is handy when moving the generator to an upper level without carrying it up the stairs.

However, the lift hook bar adds extra weight to the generator, and some manufacturers charge more for this feature. Therefore, if you don’t need it, consider getting a generator with only a wheel kit for better portability.

Frequently Asked Questions

Now that you have seven excellent recommendations for dual fuel generators. Let’s look at some of the Frequently Asked Questions.

How does a dual fuel generator work?

A dual fuel generator uses two fuel sources: gasoline and propane. The appliance has a knob that allows you to switch between both options. Gasoline produces more watts but is louder, while propane is quieter if you don’t need much power.

Is it cheaper to run a generator on gas or propane?

Propane is the most cost-efficient option because you can store a canister of propane for a long time without it losing potency. Since you only need generators in an emergency, propane is the cheaper choice for fuel.

Are dual fuel generators quieter on propane?

Yes, dual fuel generators sound quieter when they use a propane supply instead of gasoline. The wattage output is lower, though, so you’ll want to use propane when you don’t need much power, and plan to keep the generator closer to your house so that it won’t be a major disruption.

Final Thoughts on Dual Fuel Generators

To wrap up, it’s clear that a dual fuel generator is a reliable and versatile investment for any homeowner. While they may be more expensive than traditional generators, the benefits of a dual fuel generator are well worth the cost.

Not only do dual fuel generators provide a backup power source during blackouts, but they also give you the freedom to choose between gasoline and propane, depending on your power needs and noise preferences. This flexibility ensures you have access to a reliable power source that keeps your home running smoothly during an unexpected power outage.

So if you’re considering purchasing a backup power source for your home, consider the many benefits of a dual fuel generator. With the right choice, you’ll have a reliable and efficient power source that will give you peace of mind for years.

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