Best Dual Fuel Inverter Generator Buying Guide

The best dual-fuel inverter generators use a new and very efficient technology that makes them more fuel-efficient. As a result, they are the ideal generators for saving money in the long run.

Best Dual Fuel Inverter Generator Buying Guide 2

Unlike conventional generators, inverter generators are much quieter and are less annoying to keep or be around. Put another way, inverter generators are like the holy grail of the generator world.

This feature comes in handy during blackouts as it ensures an uninterrupted power supply to sensitive appliances. Instead of stopping operations when the fuel is out, you can switch power to the reserve fuel source.

Dual fuel generators are reliable and dependent. Hence, if you are looking for a blend of versatility and convenience in one machine, you can depend on a convenient power supply source.

They are also effective, and it is considerably easy to switch from one fuel source to another. Most generators are designed to run for more than 24 hours without stopping. They are relatively easy to put together and require no periodic maintenance.

Before buying the best dual-fuel generators, let us help you with some helpful tips on considering and how to purchase the generators.

Different size Dual Fuel Inverter Generator

DuroMax XP2000EH

  • Power: 1600 Watts / 2000 Watts
  • Engine: 80cc
  • Run-time: 6.5 Hours at 50% load
  • Noise Level: 61 dBA
  • Outlets: 2 – 120V 13.3A
  • Fuel Tank: 1.19 Gallons
  • Size: 20 x 10.5 x 18 Inches
  • Weight: 53 Pounds
  • Parallel Ready: Yes
  • Warranty: 3-Year
  • User Rating: – 4.00 out of 5 – 40+ Customers
  • Expert Score: – 4.10 Out of 5

Ford FG11050PBE

Ford FG11050PBE
Electric Start, Big Engine Generator
  • Power: Gas-9000/11050, LPG-8550/10500W
  • Engine: 457cc
  • Run-time: 10 Hours
  • Noise Level: 78 dBA
  • Outlets: 4 – 120V 20A, 1 – 120/240V 50A RV, 1 – 120V 30A
  • Fuel Tank: 6.6 Gallons
  • Size: 32 x 23 x 23 Inches
  • Weight: 196 Pounds
  • Parallel Ready: No
  • Warranty: 2-Year
  • User Rating: – 4.20 Out of 5 – 100+ Customers
  • Expert Score: – 4.30 Out of 5

Westinghouse WGen9500DF

Westinghouse WGen9500DF
Remote Electric Start
  • Power: Gas-9500/12500, LPG-8500/11200 Watts
  • Engine: 457cc
  • Run-time: 12 Hours
  • Noise Level: 74 dBA
  • Outlets: 4 – 120V 20A, 1 – 120/240V 50A, 120/240V 30A RV
  • Fuel Tank: 6.6 Gallons
  • Fuel Consumption: 0.55 GPH
  • Size: 27.2 x 26.1 x 26.5 Inches
  • Weight: 211 Pounds
  • Parallel Ready: No
  • Warranty: 3-Year
  • User Rating: – 4.60 Out of 5 – 8K + Customers
  • Expert Score: – 4.70 Out of 5

List of Dual Fuel Inverter Generator from Champion

Champion 100402

LPG, Gas-powered Generator
  • Power: 1600 Watts / 2000 Watt
  • Engine: 80cc
  • Run-time: 11 Hours at 100% Load
  • Noise Level: 53 dBA
  • Outlets: 2 – 120V 20A, 1 – 12V DC, 30A RV, Dual port USB adapter
  • Fuel Tank: 1 Gallon
  • Size: 20.5 x 12.6 x 16.9 Inches
  • Weight: 47.6 Pounds
  • Parallel Ready: Yes
  • Warranty: 3-Year
  • User Rating: – 4.40 Out of 5 – 200+ Customers
  • Expert Score: – 4.50 Out of 5

Champion 100900

Ultralight LPG, Gas-powered
  • Power: 1600 Watts / 2000 Watt
  • Engine: 4-stroke 79cc OHV
  • Run-time: 11 H (Gas), Up to 34 H (Propane)
  • Noise Level: 53 dBA
  • Outlets: 2 – 120V 20A, 1 – 12V DC 8A, Dual 2.1A ports USB Adapter
  • Fuel Tank: 1 Gallon
  • Size: 17.3 x 11.5 x 17.7 Inches
  • Weight: 39 Pounds
  • Parallel Ready: Yes
  • Warranty: 3-Year
  • User Rating: – 4.60 Out of 5 – 4.6k+ Customers
  • Expert Score: – 4.70 Out of 5

Champion 3400

Dual Fuel Generator
  • Power: 3100 Watts / 3400 Watts
  • Engine: 192cc
  • Run-time: 7.5 Hours (Gas), Up to 14.5 Hours (Propane)
  • Noise Level: 59 dBA
  • Outlets: 2 – 120V 20A, 120V 30A RV, 12V DC outlet with dual USB Adapter
  • Fuel Tank: 1.6 Gallons
  • Size: 25.1 x 17.3 x 18.3 Inches
  • Weight: 95.7 Pounds
  • Parallel Ready: Yes
  • Warranty: 3-Year
  • User Rating: – 4.70 Out of 5 – 1.9K Customers
  • Expert Score: – 4.80 Out of 5

Best quiet dual fuel generator Champion 100402

This is an excellent solution if you need an emergency machine that can power your small and sensitive equipment. By using gasoline, you can get 2000 to 1600 watts.

And by using propane, This EZ Start dial generator can produce 1800 watts at starting and 1440 running watts. AT a 25% load, this machine makes 53 dba noise (From 23 feet distance).

It’s perfect for camping, tailgating, or backing up a few home essentials. If you need more power, you can use the Parallel connection option to double the power by adding another unit. Comes with 3 years warranty.

Read the user Manual and review about Champion 2000W Dual Fuel EZ Start Dial Portable Inverter Generator. Buy from Amazon.

DuroMax XP2000EH – 2000/1600 Watts

You should check this out if you need an emergency machine that can power your small and sensitive equipment for around 5/6 hours. Using gasoline can get starting at 2000 watts and Running at 1600 watts.

And by using propane, 1,900 starting watts and 1,520 running watts power. At a 25% load, this 79cc 4-Stroke OHV Forced-Air machine makes 52 dba noise (From 23 feet distance).

So it’s perfect for camping, tailgating, or backing up a few home essentials. If you need more power, you can use the Parallel connection option to double the power by adding another unit. Comes with 3 years warranty.

Read the User Manual and review about DuroMax XP2000EH Dual Fuel Generator. Buy from Amazon.

Champion 100900 dual-fuel portable generator

If you are looking for a bit cheaper but the best dual fuel inverter generator than Champion 100402, this is an excellent fit. This can offer the same power as Champion 100402 does.

We found some differences, like there is no Ez Start dial. This is one of the lightweights in this class. Its weight is only 39 pounds, making it easy to use during camping, Tailgating, Hunting, fishing, or RV.

This excellent little machine can support you up to 11.5 hours of run time on gasoline and 34 hours on propane. Both come with one 12 V, two 120V 20 outlets, and a dual-port USB adapter.

Read a complete review about the Champion 100900 dual-fuel portable generator. Buy from Amazon.

DuroMax XP4850EH Dual fuel generators

This is a DuroMax 4 stroke 208cc Single Phase heavy-duty power OHV engine. This generator comes with 3.96 gallon of fuel tank, so with a 50% load, it can run up to 12 hours on gasoline and 16 hours by using propane.

This machine makes 69 dba noise (From 20 feet distance). By using gasoline, you can get 4,850 starting to 3,850 running watts. And by using LPG, it can be e 4,123 watts at starting and 3,273 running watts.

So it’s perfect for RV or Midsize Homes loads, from lights, a refrigerator or air conditioner, and high amperage power tools. Comes with a 30-day replacement warranty and a 3-year warranty. It offers Two 120V 20A and one 120/240V 30A twist-lock outlet.

Read the User Manual and review about DuroMax XP4850EH Dual Fuel Portable Generator. Buy from Amazon.

Champion dual fuel inverter generator 100263

This is a heavy-duty 4-stroke 192CC powerful OHV Engine. This dual-fuel generator comes with 1.6 gallon of the fuel tank so that it can run up to 7.5 hours on gasoline and 14.5 hours by using propane.

By using gasoline, you can get 3400 to 3100 watts. And by using LPG, it can be e 3,060 watts at starting and 2,790 running watts. AT a 25% load, this machine makes 59 dba noise (From 25 feet distance).

It is perfect for camping, tailgating, or backing up a few home essentials. If you need more power, you can use the Parallel connection option to double the power by adding another unit. Comes with 3 years warranty. 

Read the User Manual and review about Champion 3400 dual-fuel inverter generator. Buy from Amazon.

Large dual fuel inverter generator Ford FG11050PBE

This is a heavy-duty single cylinder 4 strokes 457CC powerful Air Cooled engine. This dual-fuel generator comes with a 6.6-gallon of the oil tank to run up to 10 hours of backup. By using gasoline, we can get 11,050 watts at starting and 9,000 running watts. And for LPG, it can be 10,050 watts at starting and 8,100 running watts.

Digital Hour Meter, Low Oil Shutdown, and Automatic Voltage Regulator make this one of the best ford inverter generators in the market. This CARB, EPA, CSA Certified machine has four 120V 20A, One 120V 30A Ac and One 120/240V AC 50A RV Outlet.

Read the review about Ford FG11050PBE Generator Dual Fuel Portable Generator. Buy from Amazon.

Westinghouse WGen9500DF – 12,500/9,500 Watts – 211 pounds

This is a heavy-duty 4-stroke 457CC powerful OHV Engine. This dual-fuel generator comes with 6.6 gallons of fuel tank With a Fuel Gauge so that it can run up to 12 hours of backup.

By using gasoline, we can get 12,500 watts at starting and 9,500 running watts. And for LPG, it can be e 11,200 watts at starting and 8,500 running watts.

This powerful generator has two 120V 5–20R, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R Outlet. Automatic Low Oil Shutdown and Digital Hour Meter is the feature you must like most. Though it’s a bit heavy (211 Pounds) and noisy, It makes 73 dBA noise at 25% load.

Read the user Manual and review about Westinghouse WGen9500DF Dual Fuel Portable Generator. Buy from Amazon.

Before You Buy a Dual Fuel Generator:

The Size of the Generator

Before buying a dual-fuel generator, you must consider the size you want. Generators come in different sizes, each designed to provide custom energy without being excessive.

Besides the power output, the size affects the running time, maintenance requirements, and price. Generator sizes are measured in inches and often include the model’s height, width, and length. Most generators weigh between 100-250 pounds and 22-30 inches.

The size directly affects the weight; hence, you should consider the weight, especially if you plan to move the generator frequently. If the machine is too big, you may have difficulty fitting it into your trunk or maneuvering the unit.

However, if the size is too small, it can cost you the power output. Hence, consider your power and mobility needs before buying the generator.

Wheel Kit and Portable Design

If you prefer a portable generator, look for features that aid in moving from one place to another. Note that mobile does not always mean small; you can conveniently move the generator from one place to another without difficulty.

Since dual generators can be difficult to carry, manufacturers make up for this by providing wheel kits to facilitate moving to different locations.

However, some products don’t come with these kits. Instead, they are sold separately. By implication, you can buy them and add them to your existing unit. Therefore, you need to decide whether you want a generator with a portable transport option or want to buy the kit separately.

Tips: Check out our Portable Inverter Generator review and buying guide

The Cost of the Generator

Be very careful when shopping for a dual-fuel inverter generator, as you must try to strike a price-quality ratio. Most people concerned about the unit’s price either end up with a cheap or an expensive generator that is not worth their time.

The deal is this; overly-cheap generators are not worth much, and the same can be said for the ones that are too expensive.

True, the more expensive the machine is, the more functional features you’ll get; however, you don’t need to break the bank before buying one. There is always a helpful generator at every price level.

All you need to do is create a budget of how much you are comfortable with parting with and find a generator at that price level. The big idea is not to look too low or too high along the price chain before buying a generator.

Maintenance of the Generator

What is the best dual-fuel inverter generator maintenance process? Specific dual-fuel generators are easier to maintain than others. For example, generators that use gasoline as a fuel source require more maintenance than diesel.

In most cases, larger units are more difficult to maintain than their portable counterparts since they include more components. Although it should not always affect the size, you must consider it nonetheless.

Choosing a generator that offers the appropriate running time you desire would be best. This can be a function of the tank size, physical size, or fuel type.

What to Consider When Buying dual fuel inverter generator?

Power Ratio of the Generator

The power ratio or output of generators is measured in Watts and is usually indicated as peak and running power output. The peak power is the maximum watts the generator can provide during operations, and the running watts are the average power it can produce during operations. Dual-fuel generators produce between 1000-12000 watts depending on the size of the generator.

Depending on the manufacturer, the watts may vary between the two fuel sources. For example, gasoline may provide more wattage than propane. We recommend you make a comprehensive list of all your tools, appliances, and electrical device you want to power.

List their wattage and add them all together to give you an idea of the minimum watt requirement the generator must be able to power.

Control Panel of the Generator

The control panel lets you conveniently monitor fuel level, runtime, wattage, and other generators’ status. In most cases, the control panels feature indicator lights and LED displays; however, the quality is usually in the control panel’s intuitive design.

Not just this but also in the number of information it displays. The control panel should be integrated into different protection systems, like the low oil shutdown, to protect the generator. Other protection systems include overheating, circuit breaker, overload protection, manual shutdown, and voltmeter. Proper integration notifies you of any emergencies so you can take action immediately.

Starting Mechanism of the Generator

The standard way to start a dual-fuel generator is through an electric start switch or a recoil cord. The electric start device is easy to use and convenient.

The generator automatically starts by storing extra electricity in an internal battery when you flip a switch or a button on the keypad. This ignition method is the most convenient as it only requires the electricity stored by the generator. However, it cannot work when the internal battery is not charged.

On the other hand, a recoil cord requires you to steadily and quickly pull the recoil cord to start the engine. Although old, this technology is reliable but takes some effort.

It may also require a few pulls to get the generator started. The advantage is that you can start the generator anytime, regardless of how long it has been sitting unused.

Neighborhood-friendly Design 


The operational noise level refers to the acceptable noise level that won’t disturb your neighbors. Any operating tool will produce sound; however, the unit can still power your devices without making too much noise. Since the noise level is measured in decibels, you need to shop for inverter generators with the lowest noise levels.

Inverter generators don’t make more noise than conventional generators; however, a dual-fuel inverter generator combines the function of two into one. The noise level often depends on the generator size, the fuel used, and the power output. We recommend you shop for quiet inverter generators.

Receptacles of the Generator

Check the type and number of receptacles in the generator before buying. Most models come with standard 120V outlets, enough to power most household appliances. However, you may require the automotive 12V DC terminals or 240V outlets. We recommend you check each unit’s specifications and details and compare them to different models before buying.

Fuel Capacity of the Generator

You also need to consider the fuel capacity of the generator as it directly affects the running time. The accommodation ranges from 2-10 gallons depending on the tank’s size. Generally, a larger gasoline fuel tank provides more power and runtime.

However, it is not always the vase with propane since the gas is stored under pressure in canisters and attached to the generator via a hose. If gasoline is one of the fuel sources, we recommend checking to ensure the tank capacity will be enough for your needs.

Lift hook bar 

The lift hook bar is handy if you intend to use your inverter generator on job sites. The bar lets you attach the generator to a pulley and hook the system to lower or raise the machine. Instead of carrying it up and down ladders and stairs, you can attach a pulley system to the bar and conveniently lift the generator.

How Do Dual fuel generators Work?

Champion 3400 dual fuel inverter generator in use

Dual fuel generators use two fuel types, diesel or natural gas, to power a generator. Unlike conventional generators, the fuel can be mixed in the same proportions or used alone, depending on the engine and design.

Read more about the Dual fuel inverter generator. Advantage, How its works.

Why are Inverter Generators So Quiet? Pros Cons Conclusion

The engine design is responsible for the quiet performance of an inverter generator. The technology it uses to produce power is significantly different from conventional generators because of the technology used.

The technology converts a high-frequency AC into DC and then into AC. This conversion process ensures a constant noise level and creates a stable sine wave that keeps the noise level acceptable.

The design also provides more control over the voltage, frequency, and power the machine supplies. Apart from this, manufacturers also add a muffler to reduce the noise created by the generator. Plus, the design reduces internal shaking to keep the engine at a constant level and reduce noise.

What are the significant benefits of the best dual-fuel generator?

A dual-fuel generator lets you save money as it packs the advantages of two generators into one. Propane is less expensive and burns cleaner than diesel if it is available.

Apart from this, it ensures an uninterrupted power supply. It is a reliable form of power as it is versatile, practical, and has a low environmental impact. The generator is durably built to withstand strict and harsh weather conditions.

Besides the build, propane never goes bad; hence, it has a longer shelf life than generators that only uses gasoline. More importantly, it requires less maintenance as it features sturdy frames and solid materials for durable and reliable all-weather performance.

Common FAQs about Your New Best Dual Fuel Generator:

Are dual fuel generators safe to power sensitive electronics?

Clean and stable sine wave energy is key to powering sensitive electronic devices. Since spikes and drops usually affect and damage the processor, you need a dual-fuel inverter generator that produces clean sine wave power.

If the AC power indicates a pure sine wave, you can use the generator to power sensitive electronics. Honda dual-fuel inverter generator can be an excellent solution for you.

Can dual-fuel generators run on natural gas?

Specific dual-fuel generators, adapted for the purpose, can run on natural gas. However, it can be tricky since there is a significant difference in fuel types and operating temperatures.

Nonetheless, natural gas is a less expensive way to generate power and is substantially efficient. It also does not produce a strong odor and is cheaper to buy.

Since natural gas burns cleaner than diesel and requires less maintenance, dual-fuel generators using natural gas don’t need much care and produce cleaner output. Propane is the most standard type of natural gas.

Are dual fuel generators suitable? Key features specifications What included

Dual-fuel generators are economical and environmentally friendly as they produce less toxic emissions and are ideal for different applications. 

Compared to regular units, their design lets you take advantage of their highly flexible performance to ensure optimal performance in other operating conditions. Hence, regardless of the weather, you can always use the generators.

You won’t be affected by fuel scarcity as you can conveniently switch from one fuel source type to another without breaking the bank. The generators are also easy to maintain, highly portable, and ideal for keeping around in emergencies.

About Alex Grint

This is Alex Behind this BestGenerator.Review. I have completed my Diploma in Electrical & Advanced Electrical from Apex Technical School, NYC. The School curriculum covers an introduction to the National Electric Code and includes an emphasis on electrical safety, breakers and fuses, blueprints, grounding, outlets, splicing, and bonding. Besides my job, I like to spend my time testing and playing with different electrical devices. Generators are one of my favorite machines.