Best Dual Fuel Generators: Complete Reviews With Comparisons

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If you’re in a hurry, the Pulsar G12KBN-SG 12000 Watt Dual Fuel Generator is the best dual fuel generator to buy right now.

Best Dual Fuel Generator

Natural disasters like hurricanes and earthquakes can disrupt the gasoline supply in many areas. The best dual fuel generator guarantees you’ll have power at home until the electricity is restored.

Dual fuel generators have gained popularity because they tend to be more efficient than conventional models. Among their top benefits are fuel efficiency, versatility, and longer runtimes.

While they are more expensive than conventional generator sets, they are far cheaper to operate. For such reason, we can say that they are worth the investment. 

If you’re in the market for dual fuel generators, we’ll introduce five great models, their main features, and their pros and cons. 

We’ve also included a buying guide, along with answers to the most commonly asked questions about dual fuel generators to help you find the perfect generator for your application needs.

Our Top 5 Recommended Dual Fuel Generators

Image
Best Overall
Pulsar G12KBN-SG Heavy Duty Portable Dual Fuel Generator - 9500 Rated Watts & 12000 Peak Watts - Gas & LPG - Electric Start - Transfer Switch & RV Ready - CARB Compliant
Champion Power Equipment 100402 2000-Watt Dual Fuel Portable Inverter Generator, Parallel Ready
Westinghouse WGen7500 Portable Generator with Remote Electric Start 7500 Rated Watts & 9500 Peak Watts, Gas Powered, CARB Compliant, Transfer Switch Ready
WEN DF1100T 11,000-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start - CARB Compliant, Black
DuroMax XP5500EH Electric Start-Camping & RV Ready, 50 State Approved Dual Fuel Portable Generator-5500 Watt Gas or Propane Powered, Blue/Black
Generator
Pulsar G12KBN-SG 12000 Watt
Champion 2000-Watt
Westinghouse WGen7500
WEN DF1100T 11000 Watt
DuroMax XP5500EH
Type
Conventional
Inverter
Conventional
Conventional
Conventional
Starting Watts (W)
12000
2000
9500
11000
5500
Running Watts (W)
9500
1600
7500
8300
4500
Best Overall
Image
Pulsar G12KBN-SG Heavy Duty Portable Dual Fuel Generator - 9500 Rated Watts & 12000 Peak Watts - Gas & LPG - Electric Start - Transfer Switch & RV Ready - CARB Compliant
Generator
Pulsar G12KBN-SG 12000 Watt
Type
Conventional
Starting Watts (W)
12000
Running Watts (W)
9500
Image
Champion Power Equipment 100402 2000-Watt Dual Fuel Portable Inverter Generator, Parallel Ready
Generator
Champion 2000-Watt
Type
Inverter
Starting Watts (W)
2000
Running Watts (W)
1600
Image
Westinghouse WGen7500 Portable Generator with Remote Electric Start 7500 Rated Watts & 9500 Peak Watts, Gas Powered, CARB Compliant, Transfer Switch Ready
Generator
Westinghouse WGen7500
Type
Conventional
Starting Watts (W)
9500
Running Watts (W)
7500
Image
WEN DF1100T 11,000-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start - CARB Compliant, Black
Generator
WEN DF1100T 11000 Watt
Type
Conventional
Starting Watts (W)
11000
Running Watts (W)
8300
Image
DuroMax XP5500EH Electric Start-Camping & RV Ready, 50 State Approved Dual Fuel Portable Generator-5500 Watt Gas or Propane Powered, Blue/Black
Generator
DuroMax XP5500EH
Type
Conventional
Starting Watts (W)
5500
Running Watts (W)
4500

Last update on 2021-06-08 at 21:37 / Affiliate links / Images from Amazon Product Advertising API


Best Dual Fuel Generator Reviews

Here are the top 5 dual fuel generators review.

1. Pulsar G12KBN-SG 12000 Watt Dual Fuel Generator

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

A portable backup power source with minimal wattage is nice to have for recreational applications and short outages. If you have a large household or you’re looking for a generator for a job site, this might be the best dual fuel generator for you.

It runs on 12,000 starting watts and 9,500 running watts, which means you can operate nearly all your home appliances. It can support a refrigerator, window-type air conditioner, electric clothes dryer, televisions, and central AC (for smaller homes). You can also connect some of your power tools to the generator.

Product Highlights

The Pulsar G12KBN-SG Dual Fuel Generator has a lot of features to offer, including:

  • Power Output

The Pulsar dual fuel generator features a four-stroke, air-cooled engine with an electric start. If using gasoline, it provides 12,000 watts of surge power and 9500 watts of running power, which is more than enough to power a regular household.

The unit also has four 120V outlets, one twist-lock outlet, and one 12V DC output. It also has a 30 AMP or less breaker for a 120-volt or 240-volt power need.

If using LPG, the Pulsar G12KBN-SG Dual Fuel Generator produces 10,800 starting watts and 8,550 running watts.

  • Fuel Tank Capacity

This model boasts an eight-gallon fuel tank that provides 12 hours of continuous power at half a load. Aside from longer runtimes, a large tank allows you to store more fuel so you won’t have to keep rushing back to the gasoline station.

If you’re keeping the power output to just about a quarter of its capacity, the Pulsar G12KBN-SG Dual Fuel Generator will give you up to 24 hours of runtime.

What We Like

The Pulsar G12KBN-SG Generator’s high power output is definitely a huge advantage, especially if you’re looking for a reliable generator for home use. It’s also ideal for running a job site where a lot of power tools are used.

Apart from an electric starter, the Pulsar G12KBN-SG also has a traditional pull-start mechanism. Lastly, despite being a huge generator, its decent noise level of 76dB, which sounds like a vacuum cleaner or an average radio, is impressive.

What We Don’t Like

The Pulsar G12KBN-SG weighs 209lbs, which is pretty heavy. The good thing is that it comes with 10-inch sturdy wheels and drop-down handles for easy maneuvering.

Pros:

  • Large power output
  • Great for residential applications
  • Relatively quiet for its size
  • Easy to operate

Cons:

  • Very heavy
  • Almost shaking and sputtering a bit
  • Bulky and needs an ample storage space

2. 2000-Watt Champion Power Equipment

Champion Power Equipment 100402 2000-Watt Dual Fuel Portable Inverter Generator, Parallel Ready
Champion Power Equipment 100402 2000-Watt Dual Fuel Portable Inverter Generator, Parallel Ready

This inverter-style portable generator is space-saving and lightweight. It’s ideal for tailgating, camping, and as a backup power source for basic appliances.

It produces clean power at a THD of <3%, so you can safely use it to power sensitive electronics like your laptop or smartphone. It’s also EPA-certified which means it passes all requirements for safety and hazardous emissions.

Product Highlights

Some of the most notable features of the Champion Power Equipment are:

  • Quiet Operation

As an inverter-type generator, the Champion Power Equipment operates at a quiet 53dB rating. It is similar in intensity to the sound of a running refrigerator, an electric fan, or a hairdryer. That’s pretty quiet, and you won’t even hear it from a significant distance.

  • EZ Start Dial

Unlike generators that use manual recoil, this portable equipment features a dial system to start or turn off the engine. This mechanism makes it easier to shift from gasoline to propane or vice versa.

  • Gas or Propane

If using gasoline, the generator produces 2,000 starting watts and 1600 running watts. If used on a quarter load, this gives you a runtime of up to 11 hours. If you’re using propane, the Champion Power Equipment generates 1,800 starting watts and 1400 running watts.

  • Parallel Ready

If you need a larger backup source, you can connect it with another 2000-watt inverter generator. It will double the equipment’s output power to 4000 watts, providing enough power to run a home refrigerator and a few other appliances in your home.

  • Technical Support

Champion Power generators come with a three-year limited warranty and free lifetime technical support.

What We Like

Several things about this portable generator are impressive, including its low weight, compact design, and ease of operation. The longer runtime is also a huge advantage, especially for overnight camping trips. It’s an inverter-type, so you can have peace of mind that it won’t harm your sensitive electronics.

The Champion Power Equipment is ideal for running a few basics, but you can link it with a companion kit to increase the total output power.

What We Don’t Like

While the dial system sounds fantastic, we’re unsure whether it will hold up with constant use. We still prefer manual recoil over it.

Also, the Champion Power Equipment weighs 47lbs which is pretty light for a generator but still quite heavy for carrying. Unfortunately, it doesn’t come with wheels.

Pros:

  • Sleek and lightweight
  • Parallel ready
  • Inverter-style
  • Longer run time

Cons:

  • Not too quiet for a compact inverter generator
  • Not suitable for home use
  • Breather tube prone to freezing in low temps

3. Westinghouse WGen7500

Westinghouse WGen7500 Portable Generator with Remote Electric Start 7500 Rated Watts & 9500 Peak Watts, Gas Powered, CARB Compliant, Transfer Switch Ready
Westinghouse WGen7500 Portable Generator with Remote Electric Start 7500 Rated Watts & 9500 Peak Watts, Gas Powered, CARB Compliant, Transfer Switch Ready

Another high-power generator capable of operating in gasoline or propane, the WGen7500 features a modern design. It also comes with a remote start key fob and a digital hour meter.

Having large power output and longer runtime, this generator from Westinghouse suits various applications, from DIY projects to emergency home backup use.

Product Highlights

The features the Westinghouse WGen7500 offers are the following:

  • Remote Start

This model features a push-button electric start and a remote key fob. Even so, it still provides a manual recoil mechanism for backup.

The Smart Switch technology allows you to switch power sources automatically. You can also operate the fob at a distance. 

  • Power Output

While not as powerful as the Pulsar generator, this unit from Westinghouse is an excellent size for most homeowners. With a 7,500-watt power output, you can run most household appliances, including a water heater, well pump, and oven. This generator has starting watts of 9,500.

  • Runtime

This model has a tank size of 6.6 gallons, which gives you 11 hours of continuous runtime at half a load. Running the generator at 50% load is good enough to power essential appliances during a power outage, such as a sump pump, lights, refrigerator, fans, modems or routers, and televisions.

  • Maintenance

The Westinghouse WGen7500 also features an Automatic Low Oil Shutoff and fuel gauge so you can easily monitor if you still have enough fuel.

What We Like

Built by a reliable brand, WGEN7500 is undoubtedly a good-quality portable generator. The high power output is an advantage.

What’s more impressive is that this model is relatively light for its size, weighing 192 pounds. In addition, it comes with a wheel kit and a folding handle for easy maneuvering.

What We Don’t Like

Since it’s not an inverter generator, the power it produces is not entirely clear. Its Total Harmonic Distortion (THD) can reach up to 23% at peak loads. Sensitive appliances and electronics require a THD of less than 6%.

Pros:

  • Heavy-duty portable generator
  • Relatively lighter for its size
  • Longer runtime
  • Smart switch technology
  • High power output
  • EPA, CSA, and CARB certified

Cons:

  • Power is not entirely clean
  • Max power outlet is just 30A
  • Needs modification to supply power without tripping off

Related: Click here for Westinghouse Inverter Generator.


4. WEN DF1100T 11,000-Watt Generator

WEN DF1100T 11,000-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start - CARB Compliant, Black
WEN DF1100T 11,000-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start - CARB Compliant, Black

WEN is another popular brand that has been manufacturing generators since 1951. This specific model has 8,300 running watts, making it ideal for home and commercial use.

It also features an electric start, wheels for portability, and multiple voltage options to support varying appliances and tools. The built-in fuel gauge makes it easy and convenient to monitor the fuel level.

Product Highlights

Some of the things you’ll expect from the WEN DF1100T Generator are:

  • Build

This unit features a 457cc, four-stroke engine enclosed in a robust, heavy-duty metal frame. A rugged enclosure keeps the engine protected from the elements and gives it a longer lifespan.

  • Power Output

This dual-fuel generator gives a running wattage of 8,300 and a starting wattage of 11,000. Like the other models we featured, it has both a traditional pull-start mechanism and an electric start.

  • Runtime

With the tank full, the WEN DF1100T Generator runs continuously for 8.5 hours at half load using gasoline. The fuel tank size is 6.6 gallons, but it comes with a 47″ propane pipe and regulator, so you can simply connect it to your LPG source if you run out of gasoline.

If using propane, the runtime is three hours at half load. You also need 20 gallons of this fuel type to power your appliances. That’s pretty normal because propane has a shorter life expectancy than gasoline and diesel.

  • Certifications

The WEN DF1100T carries EPA III and CARB certifications. Therefore, the purchase of this generator is allowed across all 50 states.

What We Like

With the lowest possible noise rating of 72dB, the WEN DF1100T Generator is one of the more quiet products for its class. We also like the built-in fuel gauge for easy monitoring.

Another thing we love about this unit is its fuel efficiency. It has a fuel consumption average of 5.5 kilowatt-hours per gallon (gas), which is well above the average.

What We Don’t Like

At 214 pounds, the WEN DF1100T is a heavy beast. Thankfully, the unit comes with a wheel kit that’s big enough to handle rough terrain. However, we doubt if it will last long because they’re made of plastic.

Pros:

  • Heavy-duty 
  • Clean emissions
  • LPG pipe included
  • GCFI outlets
  • Fuel efficient

Cons:

  • Relatively low run time for its type
  • Super heavy
  • Outlets don’t have dust covers

5. DuroMax XP5500EH 5500-Watt Generator

DuroMax XP5500EH Electric Start-Camping & RV Ready, 50 State Approved Dual Fuel Portable Generator-5500 Watt Gas or Propane Powered, Blue/Black
DuroMax XP5500EH Electric Start-Camping & RV Ready, 50 State Approved Dual Fuel Portable Generator-5500 Watt Gas or Propane Powered, Blue/Black

This dual fuel unit is powerful enough to support basic appliances during an outage, tools for your DIY project, and most of your electric camping essentials. It also makes an ideal RV generator. DuroMax also features the MX2 technology, which doubles its 120V amperage for heavy loads.

Product Highlights

The features of the DuroMax XP5500EH Generator that you need to make a note of are:

  • Portability and Power

If you’re looking for a good mix of power and portability, this generator fits the bill. The power output is not as high as a full-scale emergency generator but is more than enough to keep you comfortable at home with basic appliances. Since it’s light and powerful, you can pack it on your camper or RV as well.

  • Runtime

The DuroMax XP5500EH Generator’s runtime is plausible. It gives you eight hours of continuous electricity supply when used at 50% load. Its tank size is four gallons.

  • Durability

This brand is known for its long service life. The robust metal frame has cushioned mountings that reduce engine vibration. Some elements are made of natural cast iron, which contributes to its durability.

  • Power Panel

The DuroMax XP5500EH Generator features two 120V GCFI outlets, one 120/240V twist-lock outlet, and 12V DC for charging external batteries.

  • Certification

This portable dual fuel generator is certified by EPA and CARB.

What We Like

The portability and lightness of the DuroMax XP5500EH is its greatest advantage. A running wattage of 4,500 is pretty decent and is perfect for both emergency backup or recreational use. However, it’s more suitable for outdoor applications, particularly as an RV power source.

The twist-lock outlet is a major selling point. It can be cycled between 120V and 240V power, which gives you the ability to use the generator to power large home appliances or power tools at a job site.

What We Don’t Like

For a portable generator, the DuroMax XP5500EH creates a considerably loud noise at 69dB. It can reach up to 89dB if used at full load.

Pros:

  • Good runtime
  • Electric startup and manual recoil
  • Off-road wheels
  • Steel frame

Cons:

  • Very noisy
  • Relatively heavy

Related: Click here for a more powerful DuroMax generator option.


Dual Fuel Buyer’s Guide

Propane vs gasoline

With the increasing demand for cost-effective, versatile, and “cleaner” generators, dual fuel models were born. These generators are capable of using two different fuels to produce electricity.

Since there are many brands, makes, and models that feature dual fuel systems, finding the right generator can be quite tricky.

Now that you know the best dual fuel generators in the market today, we like to give you more tips and reminders before you purchase one. Below are the most important factors to consider when shopping for dual fuel generators:

Power Output

How many loads your generator can support is dependent on its power output which is measured in watts. Generators produce two different outputs: the rated or running wattage and the peak or surge wattage.

The surge or starting wattage indicates the amount of power needed by a device to operate, while the running wattage indicates the power it needs to keep running.

If you’re using the generator for residential or commercial applications, opt for higher power output. Generators rated at 5,000 to 7,500 watts are ideal for powering household equipment and power tools.

Fuel Capacity

Apparently, the bigger the tank, the more fuel it can hold. A bigger tank is an advantage because it means you won’t have to refill too often. A higher fuel capacity also corresponds to a longer runtime.

Portable generators designed for camping, bowfishing, and outdoor use generally have smaller fuel tanks, while heavy-duty residential or commercial generators have larger tanks. 

Choose a model with a decent fuel capacity that could provide at least 10 hours of continuous power supply.

Noise Level

Generators will never be super quiet, but you can find many makes and models with good noise levels. Inverter-style generators are the quietest, with noise levels ranging from 50 to 60 dB. A 60dB is comparable to the noise level of a normal conversation.

Keep in mind, though, that the dB ratings you see on generator specs are only applicable for 25% load. The higher the power output of the generator, the noisier it gets. So, it’s best to avoid generators that have dB ratings of 75 and up as they can be terribly loud.

Don’t know what decibel is? Click here to learn more.

Safety

Lastly, pay attention to the dual fuel generator’s safety features. Quality generators usually have overheating and overload protection. Some models automatically shut down when the gas or oil runs low.


Dual Fuel Generator FAQs

1. Are Dual Fuel Generators Any Good?

While they aren’t as popular as their single fuel counterparts, dual fuel generators tend to be more fuel-efficient, versatile, and portable.

The ability to use a different fuel, in this case, propane, gives you so much flexibility, especially during natural calamities when we encounter scarcity in the gasoline supply.

2. Why Should I Get a Dual Fuel Generator?

A dual fuel generator has many advantages, such as:
It’s easy to use and operate. It typically has a low fuel consumption.

It’s more eco-friendly since you have an option to switch to fuel types that emit less carbon into the environment.

3. Will a Generator Run Quieter on Propane?

Yes. Generally, generators that use propane are quieter, and that’s because they are clean burning. Of course, other factors affect the noise level of generators apart from fuel. These include the size, power output, and efficiency of the generator.

Read more about how to make your generator as quiet as a cricket.

4. Can You Convert a Dual Fuel Generator To Natural Gas?

While most dual fuel generators run on gasoline and propane, it’s possible to modify them so you can also use natural gas. To do this, you will need to purchase an adapter or a dual fuel conversion kit.

This device doesn’t offer a permanent conversion, rather an adaptation. It’s the most common, least expensive, and least labor-intensive method of conversion.

5. Can a Propane Generator Run on Natural Gas Without Modification?

No. You cannot run a propane generator on natural gas without modifications. You have to change the orifice where the gas passes through to accommodate the different pressure of natural gas.

Modifications are easy with natural gas conversion kits.

Final Recommendations

All the five dual fuel generators highlighted above are the best in their class, but we’d like to give the top spot to Pulsar G12KBN-SG 12000 Watt Generator.

It offers plenty of advantages for homeowners and job site operators. With 9,500 running watts, you can run most of your household appliances. We would have chosen the Westinghouse WGen7500 had it not been for its high THD.

Despite its high capacity, the Pulsar G12KBN-SG 12000 Watt Generator has a THD ranging from 5% to 8%. That means it provides “clean” electricity, and you can safely connect sensitive appliances and electronics to it. Since all of us are using devices like laptops and computers, this feature is a major concern.

That said, if you’re looking for a portable option for outdoor and recreational use, we highly recommend DuroMax. This dual fuel generator isn’t the lightest but comes with features like a wheel kit and handles for easy transportation. The decent power output is the biggest selling point for us.

Aside from your RV travels and camping trips, you can use it as an emergency backup power source for your home. Such versatility makes this generator worth the investment.