10 Best Dual Fuel Generators [2022]– Hybrid| Low THD| Quiet

Last Updated: September 16, 2022
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What is a dual fuel generator? Dual-fuel generators, sometimes known as hybrid portable generators, can run on two types of fuel: gasoline and propane, or natural gas in some cases.

Gasoline is the most common generator fuel, but it has several drawbacks, such as being difficult to store and being subject to price swings, something propane does not have. Propane is usually less expensive, which lowers your running costs.

It can also be stored forever and lessens the machine’s noise level. Having both alternatives allow for operational cost, run time, and storage freedom.

They’re frequently mixed up with bi-fuel generators, which use two types of fuel but rely on them both. Due to its dual power system, it will provide higher reliability than other backup systems such as diesel generators, solar generators, or single-fuel generators.

These are suitable for whole house (heavy duty models), RV, and camping with less hazardous emissions (e.g., CO) than diesel-only models, and some dual fuel hybrid models have low total harmonic distortion (low THD) (clean sine power) so you can run your sensitive electronics as well.

When compared to regular generators, dual fuel generators are a more cost-effective and environmentally friendly source of power.

No time to read. Just want to know the best dual fuels by type

It’s critical to choose a high-quality dual fuel generator, as lower-quality models will cost you more in fuel for less power. In this guide, we’ll look at some of the best dual fuel generators for homes and businesses on the market today.

This article will help you determine who makes the best dual fuel generator by going over some of the key features of quality generators.

Table of Contents

Top 10 Picks for The Best Dual Fuel Generator Reviews


Model & Features


The Best Dual Fuel Generator - Westinghouse WGen9500DF
  • Remote Start Key Fob

  • Power output: 9500 Watt

  • Engine size: 457cc

  • Weight: 220 lbs.

The Best Dual Fuel Generator - DuroMax Dual Fuel Portable Generator
  • Perfect for home backup

  • Power output: 12000 Watt

  • Engine size: 457 cc OHV

  • Weight: 224 lbs.

The Best Dual Fuel Generator - Champion Power Equipment 200961 2500-Watt Dual Fuel Portable Inverter Generator
  • Ultra-quiet operation

  • less than 3% THD

  • Power output: 2500 Watt

  • Engine size: 79 cc

  • Weight: 39 lbs.

The Best Dual Fuel Generator - Durostar DS5500 EH, RV ready
  • 120/240-Volt outlet

  • Power output: 5500 Watt

  • Engine size: 225cc OHV

  • Weight: 129 lbs.

The Best Dual Fuel Generator - WEN DF1100T
  • Perfect for transfer switches

  • Power output: 11000 watt

  • Engine size: 457 cc

  • Weight: 214 lbs.

The Best Dual Fuel Generator - All Power America APGG10000GL 10000 Watt
  • Electric push button start

  • Power output: 10000 Watt

  • Engine size: 420 cc Air Cooled

  • Weight: 235 lbs.

The Best Dual Fuel Generator - All Power America APGG10000GL
  • Electric start capability

  • Power output: 5500 Watt

  • Engine size: 322 cc

  • Weight: 168.7 lbs.

The Best Dual Fuel Generator - Pulsar PG10000B16 hybrid portable generator
  • Switch & go technology

  • Power output: 10000 Watt

  • Engine size: 420 cc

  • Weight: 209 lbs.

The Best Dual Fuel Generator - Sportsman GEN4000DF 4000 Watt Dual Fuel
  • Small dual fuel generator

  • Power output: 4000 Watt

  • Engine size: -

  • Weight: 94 lbs.

Firman Power Equipment H03652 best small dual fuel generator
  • Extended propane hose

  • Power output: 4550 Watt

  • Engine size: 208 cc

  • Weight: 119.5 lbs.

Top Rated Dual Fuel Generators – Comprehensive Reviews & Buyers Guide

Here is more information about the best dual fuel generators and why thousands of users chose them.

1. Westinghouse WGen9500DF Dual Fuel Generator, Portable, Electric Start, Transfer Switch & RV Ready

Best Dual Fuel Generator with Remote Start

Westinghouse WGen9500DF- best dual fuel generator

Top Specs

  • Electric push start
  • Remote start with a key fob
  • Camper and RV ready
  • Low-oil shutdown
  • Quick fuel change
  • Easy controls

This dual fuel generator from Westinghouse offers 9,500 watts of running power and 12,500 watts of peak power with gasoline or 8,500 watts of running power with 11,200 peak watts on propane.

It has an electric start, a recoil cord start, and a key fob with a remote start button.

With a full 6.6-gallon tank of gasoline, the generator runs at 74 decibels and lasts up to 12 hours. Two 120-Volt GFCI regular household outlets, one 120 Volt transfer switch outlet, and one 120/240-Volt RV outlet are all included.

Each outlet is equipped with rubber coverings for added safety and a wheel kit and lift bracket for increased mobility.

The 457cc Westinghouse OHV 4-stroke engine can run for up to 11 hours on a 20-pound fuel tank. The WGen9500DF can run for up to 17.5 hours on gasoline.


  • Fuel switching is simple.
  • Offers electric, recoil, and remote start.
  • Easy to start in the cold.
  • Low oil shutoff.
  • Engine output of 9,500 watts.
  • Start with a remote control.
  • 17.5 hours of running time on gas.
  • Powers a whole house with transfer switch.
  • Long-lasting and durable Construction.
  • 3-year limited warranty, as well as EPA and CARB compliance.


  • Did not have enough oil for a first-time start.
  • A high total harmonic disruption (high THD <23%).
  • A high noise level of 74 dBA.

2. DuroMax XP12000EH Dual Fuel Generator, Home Back Up & RV Ready, Electric Start, Portable

Best Dual Fuel Home Generator

DuroMax dual fuel Hybrid on wheels generator - best dual fuel generator over 10000 watt

Top Specs

  • Electric start
  • All-terrain solid rubber tires, no flats
  • 12,000 watts of startup power
  • 9,500 watts of running power
  • Dual-fuel technology
  • Idling control
  • Low oil automatic shutoff

The DuroMax XP12000EH Dual Fuel Generator comes equipped with a number of great features, one of which is an electric start.

This ‘Beast’ is designed for heavy-duty uses, with a durable steel frame, a high output, all-terrain tires, and an MX2 switch which will double the 120 Volt amps for heavy load.

This is the model to choose if you need a portable generator powerful enough even to power a whole house or dependable enough for a construction site or run your RV needs.

The generator is ideal for large homes and businesses. When running on gasoline, this generator has a 120/240V output with a peak power output of 4,650 watts and a running power output of up to 3,600 watts. You can get up to 4,650 peak watts and 3,240 rated watts on propane.

The XP12000EH dual fuel backup generator’s control panel features a voltmeter for measuring power output, a low oil level indicator, and a built-in fuel gauge. To prevent friction damage, this best multi fuel portable generator also features an overload circuit breaker and an automatic low oil shutoff sensor.


  • Dual fuel generator of high quality and dependability.
  • Suitable for a variety of power applications.
  • It has an electric start and cold start technology.
  • Very simple to use.
  • Can run 120 volt and 240-volt outlets simultaneously.
  • Extra-large fuel tank.
  • three-year warranty.
  • Consistent energy.
  • Simple to use key start.
  • A powerful engine with high output.


  • There is no remote start.
  • There is a heat shield that vibrates around the exhaust.

3. Champion Power Equipment 200988 2500-Watt Small Dual Fuel Generator, RV Ready Portable Inverter Generator, Manual Start, Low THD

Best Dual Fuel Inverter Generator for RV

Champion Dual Fuel 2500 Watt Gas and Propane Generator - review of best generators that are dual fuel

Top Specs

  • Suitcase style dual fuel portable generator
  • 2500 watts of startup power
  • 1800 watts of running power
  • Less than 3% THD
  • Up to 34 hours on propane
  • Sold-separately clip-on parallel kit

Despite the fact that many best dual fuel generators are large and cumbersome, Champion Power Equipment’s 2500-Watt portable version is one of the smallest dual fuel generators.

Its 39-pound portable generator can output 2,500 watts, but if you need more, the brand also makes a larger model that weighs 202 pounds and can output 7,500 watts. This machine has been successfully used by consumers to power from WiFi routers to RV needs on camping adventures.

One satisfied customer said, “This product is really well designed. Draining the gas for storage, replacing the oil, and switching fuel sources are all simple tasks. You’ll have no trouble starting if you’re used to any bi fuel equipment.”


  • On gasoline, it also gives an “estimated tank time left” based on current consumption.
  • Power many small sensitive gadgets like chargers, computers.
  • Backup of essential gadgets in the home (not simultaneously).
  • Suitcase style portable generator.
  • 10-11 hours of run time at about a 30% load.
  • Fairly accurate LED indicators on estimated power usage.
  • Dial selector for easy switch back and forth between propane or gas.
  • Top notch customer service.


  • There is no propane purge valve to prime the line.
  • You have to pull the starter about 4-5 times to allow propane to fill the line.

4. Durostar DS5500EH Dual Fuel Portable Generator, 4-Stroke Engine, EPA and CARB Compliant

Best Dual Fuel Portable Generator

Durostar DS5500EH - duel fuel generator on wheels

Top Specs

  • EPA and CARB approved
  • 5,500 starting watts
  • 4,500 running watts
  • Durostar MX2 technology
  • Engine Type: 4-Stroke
  • 7.5HP 225cc OHV Durostar Engine

The DuroStar is an affordable dual fuel generator for the RV or campsite with a capacity output of 4,500 running Watt and a peak capacity of 5,500 Watts.

It has two conventional 120-Volt household outlets, one twist lock 120/240-Volt outlet, and a 12-Volt DC charging connector.

DuroStar’s dual fuel generator weighs just 129 pounds and measures 25 by 22 by 22 inches. It has a 3.96-gallon fuel capacity and measures 25 × 22 × 22 inches. It has a metal frame and a wheel kit for enhanced mobility and works at 69 decibels of noise.

The generator has a electric push start can be started with the push of a button, but it also has a backup recoil cord in case it is needed.


  • Flexible line allows connection to propane tanks of any size.
  • Run time on gasoline – up to 8 hours at 50% load.
  • Idle control keeps RPM even with heavy loads at a steady level for conserving fuel and reducing noise.
  • Run time on propane – 50% load up to 8 hours on 20 lb. Tank.
  • Steel frame made of 1-inch steel tube.
  • Convenient electric key start.
  • Full power panel with shutdown engine, voltmeter, power outlets and circuit breakers.
  • Engine noise is reduced by a super quiet muffler.
  • Low oil shut-off protects the engine.


  • Cheap included tools.
  • Assembly instructions are not that clear.
  • 4 gallons gas tank can be low in some situations.

5. WEN DF1100T 11,000-Watt Dual Fuel Portable Generator with Wheel Kit and Electric Start, CARB Compliant

Top Rated Dual Fuel Generator

WEN DF1100T 11,000-Watt - generator that can use two kinds of fuel

Top Specs

  • Over 8 hours of run time
  • Has a DC outlet
  • Two-year warranty
  • Easy switch between 120V and 240V
  • Electric key start

WEN has produced a good heavy-duty dual fuel generator. Switching between fuels is extremely simple and safe with the WEN DF1100 Dual Fuel Portable Generator. One of the best features is the electric start.

You’ll also note that its exterior is more rugged than others. As a result, it may be one of the better alternatives for outdoor usage, particularly for RVs that require a lot of power.

Now, the term “CARB-compliant generator” refers to a device that emits less than a specified amount of greenhouse gases and complies with the organization’s rigorous guidelines.

It’s also a 4 stroke 457 cc OHV engine, like the other portable dual-fuel generator on this list. On gasoline, you can achieve up to 8300 watts running watts and a max output of 11000 watts. For propane, on the other hand, it can provide 7500 running watts and has a surge capacity of 9500 watts.

All of this power is supplied by a 6.6-gallon fuel tank, which will provide you with around 8.5 hours of continuous use.

You can switch from 120V to 240V easily with the WEN DF1100 portable generator, allowing you to transfer switches instantly. This feature also makes it more useful as an emergency backup generator. You’ll have a lot of options when it comes to outlets as well.


  • Circuit breakers for safety.
  • Built in volt, frequency, and time meter A simple selection dial for switching between gasoline and propane.
  • Good generator for heavy-duty applications.
  • Easy to transport.
  • Voltage easily changes from 120V to 240V.
  • High power capacity.
  • Runs multiple appliances simultaneously.
  • At half load, the 6.6-gallon tank can run for up to 8.5 hours.


  • No built in. Amp or watt meter.
  • Weighs 214 pounds.

6. All Power America APGG10000GL 10000-Watt Dual-Fuel Generator, Electric Push Button Start, Whole House backup

10000 Watt Dual Fuel Generator

All Power America APGG10000GL - best dual fuel generators to consider

Top Specs

  • Electric start
  • Maintenance free battery
  • 8-gallon gas tank
  • 420cc OHV engine
  • 20 amps @120v
  • 11 hours @50% load
  • Flat free wheels

The All Power 10000 Watt Dual Fuel Portable Generator is a lightweight generator with unrivaled power and reliability.

You can take this generator camping, tailgating, or use it as a backup power source in your home or RV.  Despite not being the quietest machine, some reviews stated that it could power through hurricanes and is a good alternative to some more expensive best reviewed brands, such as Honda.

The multi fuel portable generator from all Power America weighs 235 pounds, but it comes with a steel lift frame and a wheel kit so it’s easier to load, unload. With a 420cc OHV Air Cooled Engine and electric push start, the APGG10000GL has a peak power of 10000 watts.

The APGG10000GL can be started with the electric start button or the recoil cord. The 8-gallon fuel tank can run at 50% of its 10,000-watt peak power for 11 hours. It has four 120-Volt standard household outlets, one 120/240-Volt twist lock outlet, one 120-Volt twist lock outlet, and a 12-Volt DC port.


  • Can easily run a 2,000 sqft. home, minus the clothes dryer, central air or heat of course.
  • Long operation (11 hours at half load).
  • Easy to transport.
  • Electric start.
  • Flat-free wheels (made of plastic).
  • Great choice of outlets.


  • Not CARB compliant (so not for sale in California).
  • Plastic wheels can easily get damaged.
  • Handle grip sleeves tend to slide off the poles and into your hands when pulling.

7. A-iPower SUA6000ED 6000 Watt Dual Fuel Portable Generator, Gas & Propane Powered, Jobsite, RV, and Home Backup Emergency

Best Dual Fuel RV Generator

A-iPower SUA6000ED - dual fuel generator review

Top Specs

  • Heavy-duty steel construction
  • Came with oil and a wheel kit
  • Powerful 322cc OHV 4-stroke engine
  • 2 year-warranty
  • Operates on gasoline and propane
  • Switch On Demand technology

The A-iPower SUA6000ED dual-fuel generator is excellent for use on construction sites or as available backup power for your home in the event of a power outage.

The generator has a one-touch electric start button, as well as Intelli-Start, which ensures that your battery is always fully charged.

The generator is powered by the 322 cc OHV engine and the on-demand technology that allows you to switch between the desired fuel type in a convenient and easy manner, combined with an efficient high-power generator developed and made by Senci which offers greater maximum wattage.

With regular gasoline, the A-iPower 6000-Watt Dual Fuel Generator produces 6,000 watts of starting power and 5,500 watts of running power, and with propane (LPG), it produces 5,500 watts of starting power and 5,000 watts of running power.

The A-iPower can easily power your lights, television, refrigerator, slump pumps, air conditioners, cloth dryers. It can power up to 5 power tools. It has an average run time of 6 hours at 50% load and a 4-gallon heavy duty all steel construction fuel tank with built-in fuel gauge.


  • Intelli-start & switch-on demand technology.
  • Overload protection is provided by circuit breakers that include a push-to-reset button.
  • Fuel tank has a all-steel construction.
  • Simple to use small control panel with weatherproof receptacle protection.
  • Never-flat 9.5-inch wheels designed for heavy-duty loads.
  • A high-performance alternator produces more peak wattage.
  • 6.5 hours of run time at 50% load on Gas.
  • 10 hours at 50% load with a 20 lb LPG tank.


  • Only one 3 prong outlet for standard household connections.

8. Pulsar PG10000B16 10000 Watt Hybrid Portable Generator with Switch & Go Technology

Best Hybrid Portable Generator

Pulsar PG10000B16 - best outdoor dual fuel generator

Top Specs

  • Switch & Go Technology
  • Six outlets
  • All-terrain wheels
  • Electric push start
  • 12 hours of run time (@50% load)
  • 8,000 running watts on gas
  • 7,000 running watts on propane

The Pulsar PG10000B16 Dual Fuel Generator made an RV-ready design that is ready for camping. It is quite powerful, so you should have no trouble getting power for everything in your RV.

This is a great source if you want a reliable power supply for a long time, as the Pulsar hybrid generator can run for 12 hours at half load on either gasoline or propane. There are also four 120v power outlets, allowing you to plug in a large time of electrical appliances at once.

This product is one of the best dual fuel generator for the money alternatives on this list, with a reasonable price for its capacity and technological features.


  • Value/quality ratio.
  • Good fuel efficiency and run time.
  • Low oil automatic shutdown.
  • Easy to store.
  • Powder coated steel frame
  • Easy to read oil indicator.
  • Useful all-terrain wheels.


  • Power fluctuations.
  • Inadequate instructions.

9. Buffalo Tools Sportsman GEN4000DF 4000 Watt Dual Fuel Portable Generator

Best Value Dual Fuel Generator

Buffalo Tools Sportsman GEN4000DF - best 4,000 watt generator

Top Specs

  • Starting power: 3,500 watts
  • Rated power: 4,000 watts
  • Clean fuel burning
  • Six available outlets
  • Moderate run time
  • 69 dB noise level

The Sportsman GEN4000DF is a small dual fuel generator that provides a low-cost backup power for key equipment for home and RV owners. The output of this unit is 120v and it features dual-fuel technology.

The GEN4000DF Dual Fuel Generator is versatile enough for any task. It’s portable, weighing only 94 pounds. It does not, however, have wheels.

The generator will provide 3,500 rated watts and 4,000 starting watts if you use gasoline. The 212cc 4-stroke OHV engine produces 3,100 rated watts and 3,600 starting watts when running on propane. On gasoline, the running time at 50% load is 10 hours, and on propane, it’s 12 hours.

The control panel has five AC outlets, which is quite a few for such a small unit. Two duplex 120V 20A 5-20A outlets and one 120V 30A TT-30R receptacle are included in this set of outlets.

The DC outlet is a 12V 8A receptacle that may be used to charge the batteries of your gadgets. The control panel is RV-ready since it features a TT-30R receptacle.

This generator is fairly noisy, with a noise level of 69 dB, yet it may be used for camping, RV, travel trailer.


  • Clean burning.
  • Given the power output, the price is reasonable.
  • RV-compatible, with five alternating current (AC) outlets.
  • Portable, small unit weighing just 94 lbs.
  • Fuel capacity and runtime are decent.
  • Good for everyday use.
  • Easy to maintain.
  • Several household outlets.


  • No wheels.
  • This model only has a recoil start rather of an electric start.

10. Firman Power Equipment H03651 Gas or Propane Dual Fuel Portable Generator, Recoil Start

Dual Fuel Camping Generator

Firman Power Equipment H03652 best small dual fuel generator

Top Specs

  • Air cooled 208 cc engine
  • 3300 running watts on propane
  • 3650 running watts on gas
  • Low-oil shutdown
  • 14 hours of run time
  • Extended propane hose

For light outdoor activities, the Firman H03651 small dual fuel generator is a great option. Its engine is less powerful and quieter than others, making it ideal for outdoor kitchens, camping or tailgating, and travel trailers.

The Firman H03651 has two Duplex household ports and a TT-30R RV available outlet. The engine’s medium power contributes to this unit’s effectiveness for fuel efficiency. Depending on the size of your load, you can receive up to 14 hours of run time after the five-gallon fuel tank is full.


  • Low emissions.
  • Durable, compact frame design.
  • Easy 4-in-1 data minder.
  • Easy to troubleshoot.
  • Lightweight and portable, 119 pounds.
  • CARB and cETL certified.
  • Ergonomic U-shaped padded handle.
  • Quiet on propane.
  • Built-in tank gauge.
  • Low oil indicator.
  • Long run time of up to 14 hours at 1/2 load


  • No electric start.
  • No DC port for charging.

What Are the Advantages of A Dual Fuel Generator?

Personal view will determine whether or not to invest in some of the best dual fuel generators.

However, for many homes, the ability to switch between two types of fuel is a great option. If you have propane tanks on hand, for example, you may easily utilize them instead of gas.

When considering whether to invest a dual fuel generator or remain with your current model, consider the following advantages:

Easy to Use

The freedom to switch the type of fuel you wish to use or that is available is the most evident benefit.

The variety of outlets on these units is one of the most important and user-friendly features. Instead of just one or two types, there are a range to choose from.

Many include a push-start or remote-start feature, which eliminates the need to crank the engine. Depending on the model you buy, you may easily switch between fuel sources with a simple press of a button, switch, or lever.

Some generators contain a mix of RV and household outlets, as well as DC outlets that look like cigarette lighters.

Besides, you need remember to replenish the fuel tank often and without spill, with a gasoline only generator.

With a propane generator, you are freed from the continual fueling task. Therefore, the portable dual fuel generator adds to its single fuel equivalents in terms of efficiency. Dual-fuel generators are equally practical with the added advantage of a choice of tank options.


A dual fuel generator is a cost-effective option. It allows you to save money because you will no longer be reliant on gasoline as your primary source of fuel.

In terms of efficiency and efficacy, gasoline and propane are quite different chemicals. When it comes to creating electricity, gasoline outperforms propane. Its efficiency is expressed in BTUs per gallon.

So, if you’re primarily concerned with energy efficiency, such as during a long power outage, gasoline is the best option.

Instead of only relying on gasoline, you have the option of using propane. Because propane is less expensive than gasoline, the savings will pile up quickly. It’s also a highly fuel-efficient generator to choose from.

Even with a 50% load, the propane generator will last longer than the gas generator.

When you’re using a dual fuel generator, you can choose between these two options. If you use a single-fuel generator, you won’t have this option.

Flexibility in Emergencies

In the event of an emergency, a dual fuel generator can provide you with the options you need.

You don’t have to stress about running out of gas to run your generator and you can quickly and easily switch between fuels. As a result, if your gas connection is disrupted due to a disaster, you can swap to the fuel source you have.

Easy Maintenance

Dual fuel portable generators are easy to maintain since they can be moved quickly for repairs if they break down.

They’re also less expensive than whole-house generators, which require a lot of upkeep and appropriate installation.

Propane is a clean burning fuel; this helps your generator requiring less maintenance. There will be little to no residue that can go into the generator’s parts and damage them.

Continuous Power Supply

You can be confident of a constant power supply with a fuel-efficient dual fuel generator.

This is critical for any appliances that must remain operational during a power outage. This is also true for hospitals, industries, and other companies that might benefit from a reliable dual fuel generator.

This means that gasoline’s high-efficiency, high-risk character is best saved for emergency emergencies. A supplementary fuel source, on the other hand, is better for longer or more casual periods of use. You only have two choices: buy two separate generators or buy a single dual fuel generator.

Gasoline burns more quickly, but it also offers greater power. The size of the generator’s built-in fuel tank, which generally stores only a few gallons, determines the average runtime on gas.

Propane, on the other hand, burns slowly but produces less power. Tanks for propane range in size from 5 Gallon to 500 Gallon.

Dual-fuel generators give the best of both worlds rather than relying on a single fuel type. If your chosen fuel is available, you can switch to the other.

You can run your generator constantly for at least 24 hours if you use two types of fuel. Especially useful in the event of natural disasters or when a fuel source is inaccessible.

Highly Portable

Some generators are more portable than others. Some models have folding handlebars and highly maneuverable never-flat tires.

Buying one of these means that you will never have to worry about transporting any size generators from one location to another.

What Are the Potential Downsides of Dual Fuel Generators?

The major issue you’ll encounter is that a large dual-fuel models will be more expensive than a single-fuel model of the same size.

Alternatively, you might compare them to a tri-fuel generator and argue that they lack a third fuel type, putting them at a disadvantage once more. However, they are minor drawbacks. A dual fuel generator is a great tool to have on its own.

You’ll need to budget ahead of time and handle for the best dual fuel generator to meet your needs at a reasonable price.

The second drawback that comes to mind is that carrying extremely heavy propane tanks. They must also be linked to the generator at all times when it is running.

The fact that propane is a little less powerful in energy generation than gasoline is a small drawback. As you can see, while running on propane, most dual fuel generators produce a lower wattage.

Finally, unlike gasoline, which can be found at any gas station, propane bottles can be a little more difficult to come by.

Before You Buy a Dual Fuel Generator

There are several things to think about before purchasing a dual fuel generator to make sure it will fit your needs.

Dual fuel generators offer power to your home, campsite, or job site using both gasoline and propane. Compared to single-fuel generators, these generators are larger and less portable. It might also be inconvenient to transport two different types of fuel.

If noise levels are an issue, the propane mode is advantageous because it operates silently. If you truly want a generator that runs quietly, a dual fuel inverter generator is a better choice.

Instead of an alternator, which is often seen on open-frame portable generators, the dual fuel inverter generators have an insulated body and provides power via a computer-controlled inverter.

Best Dual Fuel Generator – Buying Guide

best dual fuel generators reviews

Understanding the main benefits of a dual fuel generator is a great place to start.

After that, it’s time to start which generator is the best fit for you. The Best Dual Fuel Generators are available in a range of sizes, and you should select one that is large enough to provide the energy you want without being extravagant.

Now let’s discuss the factors to look out for in your new dual fuel generator before making a purchase.

Fuel Capacity

These generators feature separate fuel tanks to store gasoline.

Because each tank has its unique capacity, not all fuel tanks are the same. This capacity is measured in gallons and can range from 2 gallons to more than 10 gallons.

Having a high-capacity tank will benefit you in a variety of ways. You won’t have to worry about refilling the generator frequently if you have a large fuel tank.

The larger the fuel tank on the generator, the longer it will be able to supply gasoline-based power, but it will also increase the size of the generator.

The capacity of your dual fuel generator has no bearing on how much propane you can burn. Because propane gas is kept under pressure in tanks that are connected to the generator through a hose and pressure regulator for direct fuel consumption.

Power Output

Watts (W) are used to measure the power output of generators, and it is reported in peak and running watts.

Running power output is the average amount of Watts generated throughout usage, whereas peak power output is the maximum Watts the generator can supply at any given time.

Depending on the size of the generator, the generator may produce anywhere from 1,000 to over 12,000 Watts of power. Depending on the manufacturer, this can be further split down into peak and running power output of propane and gasoline.

Because gasoline can provide more wattage than propane, these figures are often given separately.

Also, the wattage output varies depending on whether the portable generator is powered by gas or propane.

Propane will typically run at a 10-15% lower power level. A 4000-Watt model, for example, will supply 4,000 Watt on gasoline and 3,600 Watt on propane.

Of course, the budget will play a significant role. A dual fuel generator can cost anything from a few hundred dollars to a few thousand dollars. Prices will be high at higher watts.

When buying a generator for backup power, you must consider the amount of power you can get from generator vs. what you need.

Electric Start vs. Recoil Cord

Generators with electric start are very easy to operate. When you push the button on the keypad or keyfob, or flip the switch, the generator saves additional electricity in an internal battery that is utilized to automatically start the generator.

The recoil cord is an outdated but dependable technology that has long been seen in generators, chainsaws, lawnmowers, and other fuel-powered power tools. This technique of starting the generator needs you to pull the recoil cord quickly and steadily to start the engine.

Engine Efficiency

Every dual fuel generator is powered by an engine that burns gasoline or propane to burn energy.

While various power output ratings may appear to be similar, fuel consumption will vary due to engine efficiency. The engine efficiency essentially indicates how effectively fuel may be utilized to generate energy. If the engine is efficient, you will run out of fuel quickly.


The number and type of outlets in your generator are two things that are sometimes neglected.

Almost all models have a pair of conventional 120V AC outlets, which are sufficient for most home appliances. 240V outlets or automobile 12V DC outlets may be required by RVs. Before making investment, compare different models.

Noise Level

Any power tool or equipment will make some noise, but the aim is to find a dual fuel generator that makes the least amount of noise while yet producing enough power for your needs.

Based on the size of the generator, the fuel utilized, and the power output of the unit, a dual fuel generator will create a dB level ranging from 50 to 90 decibels.

Most generators have a noise level of 65 to 75 decibels, which is roughly the same as a hairdryer. Opt for a small, quiet dual fuel generator if this is still too noisy for your needs.

N.B.: Gasoline runs louder than propane.

Wheel Kit

Some dual fuel generators are bulky, with hoses and tanks that make them difficult to transport.

Manufacturers have begun adding wheel kits with their products in acknowledgment of this mobility limitation, allowing you to tilt the generator and wheel to whichever position you had in mind.

Wheel kits are sometimes supplied separately so that you could add them to your current generator or change an older wheel kit that isn’t functioning. A wheel kit, in either case, will make transporting your dual fuel generator a lot easier.

Dual Fuel Generator – FAQs

Are Dual Fuel Generators Any Good?

Dual fuel generators are amongst the best generator alternatives available. Depending on their situation, every user can switch from one type of fuel to another.

What Are the Major Benefits of A Dual Fuel Generator?

We have previously discussed many of the key benefits of the dual fuel generator, which include fuel efficiency, low noise, portability, ease of use, and minimal maintenance and so on.

Aren’t There Any Generators Which Run on Propane Only?

There were at least a few propane-powered portable generators on the market.

However, you now see less and less of them anymore. Dual fuel models are a better and more adaptable option since they allow you to switch from propane to gasoline if you run out. They’re also more advanced in design and run quietly and more consistently than old single fuel generator.

Tri-fuel generators are also available, but they are quite rare and, in my opinion, are a bit overkill, since they do not function well enough to warrant their higher cost.

To summarize, dual fuel is the best option.

Is There a Honda Dual Fuel Inverter Generator?

Honda does not make a dual fuel generator at present time, despite the fact that their generators are highly fuel-efficient.

They do have a number of very quiet inverter generators on hand. However, instead of running on gas and propane, they all now run on only gas.

Honda may produce dual-fuel units in the future, given the growing popularity of dual-fuel generators on the market. You may purchase customized conversion kits to convert your existing gasoline generator to a dual-fuel. Working with a professional to convert the unit is advised to guarantee it is done correctly.

Is There a Generac Dual Fuel Generator?

Yes. Generac produces industrial generators that can run on both diesel and natural gas. These are known as bi-fuel generator. It begins with diesel fuel and gradually adds natural gas until it runs entirely on natural gas. 

Because Generac BI-FUEL generators run largely on natural gas, which is less expensive than diesel, long-term fuel expenditures are considerably reduced.

Because every component is made in-house, these units are EPA-compliant right out of the box.

Do Dual Fuel Generators Have Remote Start?

Some generators offer a remote start, which is one of the best features.

The generator may be started remotely from anywhere. Similar to a key fob for your car, a remote may be used to start the generator from inside your RV or house.

This feature is useful for everyday ease or in the event of a natural disaster when you are unable to go outside.

Can Dual Fuel Generators Run on Natural Gas?

The majority of generators available for everyday usage are not equipped to run on natural gas.

Having said that, you may purchase kits that enable you to convert them to natural gas-powered models.

Natural gas is somewhat more challenging to include due to the significant variations in their operating temperatures. There are tri-fuel generators that permit this. Additionally, if you’re prepared to pay a little extra, you can find a diesel and natural gas dual fuel generator, such as the Generac Bi-fuel series.

N.B. We highly suggested that you see the user’s manual to find whether the device is capable of conversion.

What Is the Best Quiet Dual Fuel Generator?

Champion Power Equipment makes one of the quietest dual fuel generators. The Champion Power Equipment 200961 2500-Watt RV ready portable dual fuel inverter generator is out choice.

How Long Will a Dual Fuel Generator Run on Propane Fuel?

A propane tank for a generator may hold between 5 and 500 gallons of fuel (above ground).

A propane powered generator can burn around 2-3 gallons of propane fuel every hour. So, a 20-pound propane tank will last around 2 hours. A 500-gallon tank can provide continuous power to a family for up to a week.

Best Dual Fuel Generator – Summary

Our pick for the best dual fuel generator is the Westinghouse Outdoor Power Equipment WGen9500DF Dual Fuel Portable Generator, thanks to its Heavy Duty 457cc Westinghouse 4-Stroke OHV Engine. This allows you to run multiple appliances and devices at the same time in all-weather situations.

It is also extremely portable, making it perfect as a backup power source for your house or a major power source for your RV. With portable generators, you may utilize them for many tasks around the home and on a job site.

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Thornton M. School

I am a mechanical engineer with years of experience working on Internal combustion engine and fixing electrical and mechanical systems, generators, transfer switches, and equipment related to storm water and sewage pumping stations.