Pulsar 2,200W Portable Dual Fuel Quiet Inverter Generator
Inverter Generators

The Ultimate Dual Fuel Inverter Generator Review

Versatility is an important factor when looking for an inverter generator. In addition to weight and portability, the type of fuel is also important. The type of fuel a generator uses will determine how versatile it is and how it performs in outside conditions.

All generators require a fuel source to generate electricity. However, what makes a dual-fuel generator so practical is the fact that it can generate electricity from two different fuel sources (types), which in most cases are gasoline and propane. 

Understanding that dual-fuel generators don’t depend on a single fuel type is one thing, but how does that help the user in practice? Let’s find out!

No Time For a Deep Dive? These Dual Fuel Inverter Generators are Our Best Sellers

Advantages of Buying a Dual Fuel Inverter Generator

Power Outages: When power outages happen due to natural emergencies or disasters, the supply of gasoline is affected. People living in severe climatic zones know the value of having spare gas in their homes. However, the stored gasoline can go bad or be consumed quickly during a power outage. Having a second fuel option provides an added level of peace of mind. When the gas runs out, stored propane can keep your generator going and what’s great about propane is that it has a very long shelf life (more than eight years).

Worksite: A lot of worksites don’t have grid power. A generator comes in handy to power your tools at such worksites, especially when the primary source of power goes out. A dual fuel generator even goes a step further by allowing you to run the machines on gasoline and propane. Please keep in mind that a dual fuel inverter will only run tools having a power requirement lower than the power output of the inverter.

Fun and Play: A dual fuel inverter is also an excellent choice for fun activities like RVing, camping, tailgating, and beach parties. Running a dual fuel inverter on propane is a practical option for such activities. Not only does propane produce low running sound, but its exhaust fumes are less harmful than gasoline.

You may need a dual-fuel generator for many reasons, which may include reasons quite different from those listed above. Finding the right machine for your intended use can be challenging due to the hundreds of inverters available on the market. To solve this problem for you, we have selected five of the best dual-fuel inverter generators currently available on the market. All of the machines on our list are the best in their respective categories, providing cost-effective and reliable backup power when you need it most.

Let’s scrutinize the 5 best  Dual Fuel Inverter Generators on the market!

1. A-iPower SUA4000iED 4000 Watt Dual Fuel Portable Inverter Generator 

Engine and Power Output: A-iPower’s dual fuel inverter generator is built around a 223cc 4-stroke OHV dual-fuel engine. The machine delivers 4000 starting and 3500 running watts on gasoline. On propane, it can produce 3500 starting and 3200 running watts. The output is enough for running essentials during a power outage, powering some appliances in RVs, and outdoors.

Runtime: A full gas tank allows you to run this machine for 7 hours at 50% load and 5 hours at full load. The runtime on propane depends on the size of the cylinder and the load applied to the generator. When you connect a big cylinder with the inverter, it can run for more than 8 hours. However, it is not advised as this can lead to overheating and cause damage to the machine.    

Dimensions, Weight, and Portability: The unit measures 23.8 x 19.2 x 22 inches and weighs 125 pounds. One of the best things about this machine is that it is highly portable. The telescopic handle and wheels ensure that you don’t face any troubles while moving with it. It just feels like a briefcase on the go.

Outlets: The outlets include two 120V 20A AC NEMA household outlets, one 120V 30A AC 30R twist-lock outlet, and 2 USB outlets and parallel operation outlets. All these outlets are protected with covers. Please note that these are not GFCI outlets. The number and type of outlets are in line with the power output. Therefore, you may need a USB adapter for charging or connecting more than 2 USB cables.

Safety and Noise Level: The machine is loaded with safety features like low oil shutdown, overload shutdown, and surge voltage protection. The LED indicators on the control panel keep you aware of the working condition of the unit. The noise level is also one of the lowest in this power range. It produces only 58 decibels at 50% load.    

Other Features: A-iPower offers a host of other features which enhance the user experience. It also includes a fuel selector dial and a switch, and an engine starts/stop switch for electric starting, idle mode (controls the engine output), breakers, and grounding port. The digital data center can display voltage, hours (running and total), frequency, power, and fuel – which is quite convenient. The digital fuel meter keeps you aware of the fuel in the tank. It also comes with a remote starting mechanism.  


Fuel TypeDual Fuel
Surge WattsGasoline: 4000,
LPG: 3500
Running WattsGasoline: 3500,
LPG: 3200
Runtime (at 50% load)Gasoline: 7 Hours, Propane: variable
Weight125 Pounds
Noise Level58 dBA
Starting MechanismRemote, electric, and recoil
Warranty2 years
CertificationsEPA and CARB

A-iPower SUA4000iED 4000 Watt Inverter Generator


  • Remote start
  • Lightweight
  • Highly portable design


  • Parallel cable not included

2. DuroMax XP2200EH Dual Fuel Portable Inverter Generator

Engine and Power Output: The DuroStar’s dual fuel inverter is known for the best value it provides to its customers. An 80cc 4-cycle air-cooled spark-ignition engine can produce 2200 starting and 1800 running watts on gasoline. On propane, the peak wattage is 2090 watts, and the rated wattage is 1710 watts. The power output is ideal for running 3-4 essential appliances during an outage. This machine is also ideal for boats, camping, and tailgating.

Tank Capacity and Runtime: The tank size is 1.2 gallons. One full gas tank will run for 6-7 hours at 50% load. The suggested propane tank size is 20 pounds, and it will run for 19 hours at 50% load. However, a generator must not run for more than 8 hours in one go.

Dimensions, Weight, and Portability: The unit weighs 52 pounds and measures 20 x 11.2 x 18 inches. It is a lightweight unit and doesn’t need wheels for portability. The ergonomic carry handle facilitates moving the unit around.

Outlets: There are two 120V 20A GFCI outlets. This is the area where this generator lags behind others. It misses out on USB outlets. You will need to connect USB adapters to connect your appliances like mobile phone chargers, medical equipment like CPAP machines, and other USB cables.

Safety and Noise Level: For a safe working experience, there is low oil shutdown, surge voltage, and overload protection. The outlets are GFCI, but they don’t have cover protection. The noise level is 61 dBA. We agree that this is not one of the lowest on the market in this power range, but it is still tolerable at campsites, tailgate parties, and other fun events.

Other Features: There are indicators for low oil, overload, and power. The fuel selector switch is easy to use. A choke is also provided to make cold starting simple and easy. The control panel is also equipped with an engine on/off switch, an eco mode button, and a parallel port. Also included are an oil funnel, spark plug wrench, and user manual.    


Fuel TypeDual Fuel
Surge WattsGasoline: 2200,
LPG: 2090
Running WattsGasoline: 1800,
LPG: 1710
Runtime (at 50% load)Gasoline: 6-7 Hours, Propane: variable
Weight53 Pounds
Noise Level61 dBA
Starting MechanismRecoil
Warranty3 years
CertificationsEPA and CARB

DuroMax XP2200EH Dual Fuel Portable Inverter Generator


  • Lightweight
  • Excellent runtime on propane
  • Affordable


  • No data center
  • No USB outlets


3. Champion 3400-Watt Dual Fuel RV Ready Portable Inverter Generator

Engine and Power Output: Champion’s dual fuel inverter is built around a 192cc variable speed 4-stroke Champions engine. The engine delivers 3400 starting and 3100 running watts on gasoline. On propane, you can expect 3060 starting and 2790 running watts. The machine is capable of powering your necessary appliances during an outage. You can also use this inverter to power small RVs and run a few tools at a worksite.

Tank Capacity and Runtime: The tank capacity is 1.6 gallons. The machine provides a runtime of 4 hours on gasoline at 50% load and 7.5 hours on propane. The runtime on propane also depends on the size of the cylinder attached to the inverter.

Dimensions, Weight, and Portability: It weighs 95.7 pounds and measures 25.1 x 17.3 x 18.3 inches. The weight of this machine is impressive when compared to other models in this power range. It can be treated as a lightweight unit compared to the A-iPower inverter we reviewed above. The wheels in this model increase the portability. However, there is one issue, you don’t get a telescopic handle on this machine. 

Outlets: In terms of outlets, you can expect a 120V 30A twist-lock outlet, a 120V 20A duplex outlet, and a 12V DC outlet. Please note that these outlets are not GFCI and are not protected with rubber covers. You will also have to use a USB adapter to power your chargers and laptops. The USB adapter comes with the machine.  

Safety and Noise Level: Please note that this model does not have automatic voltage protection, but it does have low oil protection. You also get LED indicators for power, overload, and low oil. This unit needs to be used very carefully as the sockets are not GFCI and also not protected by a cover. The noise level is 59 dBA.

Other Features: Additional features include a propane hose, USB adapter, battery, and oil funnel. Please note that oil for first-time use is not included in the box. It is an electric and recoil-start machine with parallel connectivity and eco mode. The choke on the control panel facilitates a cold start. The machine offers less than 3% THD, keeping your sensitive appliances safe.


Fuel TypeDual Fuel
Surge WattsGasoline: 3400,
LPG 3060

Running WattsGasoline: 3100,
LPG: 2790
Runtime (at 50% load)Gasoline: 4 Hours, Propane: variable
Weight96 Pounds
Noise Level59 dBA
Starting MechanismElectric and Recoil
Warranty3 years

Champion 3400-Watt Dual Fuel Portable Inverter Generator


  • Quiet operation
  • Lightweight
  • Compact trolley style design
  • RV ready


  • No CARB compliance
  • No telescopic handle
  • Low runtime


4. Pulsar 2200W Portable Dual Fuel Quiet Inverter Generator

Engine and Power Output: Rated at 2200 peak watts and 1800 watts on gasoline, 2000 peak watts, and 1600 watts on propane, this machine comes with an 80cc 4-stroke air-cooled Pulsar engine. The engine is 3 HP and a single cylinder. This inverter is perfect for camping, tailgating, barbecues, and running mandatory appliances during a power outage or in an RV.

Tank Capacity and Runtime: The machine has a 1.18-gallon gas tank. The gas tank is so small that the weight of the machine remains on the low side. The unit gives 8 hour runtime on one full tank and 75 minutes on one pound of propane on gasoline. The runtime calculations have been made at 50% load.  

Dimensions, Weight, and Portability: This is one of the lightest dual fuel inverter generators on the market currently. Not only is it the most lightweight at only 44 pounds, but it is also a compact and smart machine. The dimensions are 19.7 x 11.22 x 17.91 inches which makes it perfect for outdoor purposes. The ergonomic handle makes sure that lifting and moving this unit is not an issue.  

Outlets: The machine comes with two 120V 15A AC outlets, one 5V USB outlet, and parallel sockets. There must be at least 2 USB outlets because many people use small inverters to run personal appliances such as phones, laptops, and other USB cable appliances such as a mini cooler.

Safety and Noise Level: The safety features include LED indicators for low oil, overload, and output. The outlets are GFCI design but don’t have rubber covers. Another great thing about this unit is that it produces a low noise while running nearby. The noise rating is less than 60 dBA at a distance of 10 feet. Thanks to that, it is perfect for RVs, outdoor gatherings, BBQ parties, and tailgate gatherings.  

Other Features: It comes with a recoil starting mechanism. The control panel is loaded with a choke, engine on/off button, an economy mode, grounding port, and a fuel selector dial. It is easy to operate and use.  


Fuel TypeDual Fuel
Surge WattsGasoline: 2200,
LPG: 2000
Running WattsGasoline: 1800,
LPG: 1600
Runtime (at 50% load)Gasoline: 8 Hours, Propane: variable
Weight44 Pounds
Noise Level60 dBA at 10 Feet
Starting MechanismRecoil
Warranty1 Year
CertificationsCSA, EPA, and CARB

Pulsar 2200W Portable Dual Fuel Quiet Inverter Generator


  • Lightweight and compact
  • Cost-effective option


  • Poor customer service
  • Hard to start on propane    

5. Firman 2900W Running / 3200W Peak Electric Start Dual Fuel Inverter Generator

Engine and Power Output: If you’re looking for something quiet with reasonable power, look no further. The Firman dual-fuel inverter has everything you need. It comes with a maximum output of 3200 watts and a running output of 2900 watts on gasoline. On propane, the unit delivers 2900 starting and 2600 running watts. It uses a 171cc engine to ensure that your power needs are always met under all circumstances.    

Tank Capacity and Runtime: It has a 1.8-gallon fuel tank. The tank size is in line with other models in the same power range. It gives a runtime of up to 10 hours on gasoline. The runtime on propane varies according to the size of the cylinder and the load applied.  

Dimensions, Weight, and Portability: The unit measures 26.6 x 18.5 x 19.7 inches and weighs only 84 pounds. It is one of the lightest in this power range. Lightweight, wheels, and telescopic handle make this inverter super portable.  

Outlets: With Firman, you don’t need to worry about the outlets as well. This model offers one 12V DC outlet, one 120V 30A outlet, one 5V USB outlet, and a 120V 20A duplex outlet. Of all the inverters reviewed above, this model has the most comprehensive outlets available.   

Safety and Noise Level: As for safety, you can expect low oil shutoff, power stream alternator, less than 3% THD, covered outlets, indicator lights for low oil, overloading, and output. The noise rating stands at 58 dBA. With such a high power output, a noise rating of 58 dBA at a distance of 10 feet is nothing short of a miracle.   

Other Features: On the control panel, you will find a fuel selector knob, choke, on/off button, a data center with frequency, volts, and hours information. Parallel ports, eco-mode buttons, and starting rope are also located on the panel.


Fuel TypeDual Fuel
Surge WattsGasoline: 3200,
LPG: 2900
Running WattsGasoline: 2900,
LPG: 2600
Runtime (at 50% load)4.5 Hours
Weight84 Pounds
Noise Level58 dBA
Starting MechanismRecoil
Warranty3 Years
CertificationsETL, EPA, and CARB

Firman 2900W/3200W Dual Fuel Inverter Generator


  • Lightweight and quiet
  • Affordable
  • Highly portable
  • Fuel gauge


  • Small telescopic handle


Buyer’s Guide

A buying guide will help you complete your purchase. It gathers all the factors that will affect the usability of the device in the long run. Therefore, we have briefly discussed all the important aspects of a generator in our buying guide.

How to choose the right one for you?

When selecting a dual fuel generator, it is important to keep in check your power needs and the generator’s output. Make a list of all the appliances you need to run on a generator, and then calculate the total starting and running wattage. If your power needs are below 3500 watts, then a dual fuel inverter is best for you.

Noise Level

Always check the noise level before buying a generator. Generally, inverters are less noisy compared to conventional generators. However, you must look at the noise production before buying the machine.  


Ensure that the inverter comes with safety features such as surge voltage protection, low oil shutdown, and overload protection. Apart from these features, GFCI and covered outlets also make the user interference safe with the machine.


If you plan to use your machine outdoors, make sure it is easy to carry around. If you are going for a bigger unit, it must have wheels and a telescopic handle to move it around. For lightweight inverters, ergonomic carry handles are perfect.


Last but not least, make sure that the generator falls inside your budget. Despite the features of a generator, buying a machine that will not upset your budget is of paramount consideration. You will also have to pay for periodic maintenance and running costs. So, it is better to keep a check on the price you will have to pay.

Safety Tips

  • Never run your generator indoors.
  • Always maintain a distance of 15 feet while running an inverter generator.
  • Never overload your generator.
  • Make sure there is oil in your generator before running it.
  • Always use fresh gasoline.
  • Ensure that the propane hose and cylinder are connected properly.
  • Never move or refuel a hot unit.   
  • Always use a transfer switch to connect your generator with your home panel.
  • Make sure you use high-quality extensions and adapters with the generator.
  • Always use a canopy while running the machine in rain or snow. 
  • Never let toddlers or children interfere while working with a generator. 
  • Read all the safety and operational guidelines in the user manual.


What is a dual fuel inverter, and how does it work?

A dual fuel inverter can run on gasoline and propane. The AC power produced by the generator is converted into DC power. The inverter in the machine then converts it back to AC power. This reduces the THD in the output power.

What are the benefits of having a dual fuel inverter generator?

It gives you freedom while choosing the fuel. It is lightweight, eco-friendly, light on the pocket, and can be used in various situations.

What are the limitations of dual-fuel inverters?

They produce limited power and cannot be used to power big appliances.

Which dual fuel inverter is best for RVs?

Champion’s dual fuel inverter generator is best for RVs. It is an RV-ready machine and one of the most powerful dual-fuel inverters on the market.

Which inverter is best for camping and tailgating?

Firman and Pulsar inverters reviewed above are best for camping, boating, tailgating, beach, and BBQ parties. 

Final Words

With the above reviews, choosing between the top five generators in their respective categories should be a little easier for you. Remember, the most important criteria you should pay attention to when deciding which dual fuel generator is the best for you – is to calculate your power needs and the generator’s output. If you do that prior to making a purchase – you can’t make a bad choice. Good luck!