A dual fuel generator allows you to use two different types of fuel to fuel one generator, as you might have guessed! A dual fuel generator usually accepts either gasoline or propane gas as fuel sources. Ever since the generator was initially invented, it has helped people all over the world overcome power losses, be that in their home, their business, or when in remote areas. Generators, like all other products, are constantly advancing and becoming more technical. Today, there are now generators that offer the ability to be fuelled with all 3 main fuels – gasoline, diesel, and propane gas (also known as LPG).
On the vast majority of dual-fuel generators, either fuel type can be used, assuming both are connected. They can be easily switched between at any time. Gasoline is great, but so too is propane. Each has its advantages over the other. Propane, for example, is a clean fuel that leaves no carbon deposits when burned. It’s also not as expensive as regular gasoline and often runs more quietly too.
Whilst a dual fuel generator is great, a tri-fuel generator could be even more suitable if you aren’t sure about which fuel you’re most likely to have readily available at any one time. They provide the assurance that assuming you have some type of fuel, you’ll always have access to power. They are a relatively new phenomenon in the power generation world, and the market for them, therefore, is growing more quickly than ever.
In this guide, we’ll be examining the 5 dual fuel generators that we believe to be the best available. Included will be a wide range of models that cater to different needs, such as camping, RV use, and those that are better for use with heavier machinery and appliances. The main points that we’ll look at when reviewing each generator are how efficient the generator is, how refined it is (whether or not it’s quiet), how powerful it is, how portable it is, and finally the quality of the power which it outputs.
Most Affordable – Sportsman GEN4000DFThe Sportsman GEN4000DF is a generator that can be fuelled by your choice of gasoline or propane gas. It’s intended to be used in rough environments such as building and construction sites. It’s very durable and has a solid construction. It’s a dependable source of portable power.
With the GEN4000DF, it’s very easy to switch between gasoline and propane. There’s a switch on the generator and, assuming both fuels are connected, they can be very easily “switched” between.
The GEN4000DF is able to output different levels of power, depending on which fuel is connected at the time. When being fuelled by gasoline, you’ll get a maximum wattage of 4000 watts. Propane, on the other hand, will only manage 3600 watts. Standard gasoline will give out 3500 continual watts of power, and propane is able to output a continuous 3150 watts of power.
The gas tank on this Sportsman GEN4000DF is 3.6 gallons in size. When the generator’s running on standard gasoline, it will keep running for almost 10 hours dependant on the load that it’s under.
When being powered by a propane cylinder that’s the standard 20lbs, it will give out electricity for over 11 hours when it’s running at 50% capacity.
It’s fitted with an automatic low oil level warning system that will automatically halt the operation of the engine to avoid any long-term damage. Not only is the GEN4000DF a generator that’s easy to use, it’s a pleasure to use at just about any event that you need power that you can get using right away.
- Starting Power: 4000W
- Running Power: 3500W
- Damage Protection – the GEN4000DF is fitted with a feature that makes sure the engine isn’t run with too low an oil level. When there’s low oil level, the generator will stop running
- Ideal for a variety of uses – the GEN4000DF is equipped with a good selection of outlet types that mean it can cater to numerous situations easily, and without the need for adaptors
- No wheel kit or other easy transportation methods
Most Powerful – Duromax XP12000EH
The XP12000EH from DuroMax is an absolute beast of a generator. It’s a unit that can be powered by either propane or gasoline, and runs very efficiently when using either.
It’s able to put out a max wattage of 12,000 watts, and has a running power output of 9,500 watts. Although the generator is most powerful when burning gasoline, it’s still got a maximum power output of 10,200 when using propane.
With 12,000 watts of peak power available, it can run almost any appliance in or around the home. It’s also the perfect generator for more power-demanding appliances, on building sites for example. The XP12000EH would easily be able to keep a number of both larger and smaller appliances powered up.
This Duromax generator is built into a heavy-duty case and is fitted with a mounting point at each corner. These are designed to ensure that the generator can be safely secured to whichever surface it is on. The XP12000EH has highly durable wheels that are designed to pull the generator over all different types of terrain.
The XP12000EH has an advanced control panel that is very informative on the operations of the generator. It’s kitted out with a fuel gauge, power gauge, a circuit breaker system, and a system that stops the generator running if the oil level gets too low.
The DuroMax XP12000EH is a high-performing and well-thought-out generator. It’s got a vast array of features that demonstrate how high-end a generator this is. It’s fitted with electric start, low oil level detection, and is very refined due to it’s high-quality muffler. It’s fitted power overload protection as well.
- Starting Power of 12,000 watts
- Running Power of 9,500 watts
- Efficient – when running on gasoline, the XP12000EH will keep going for up to 10 hours time. If fuelling the generator with propane, a tank of 40 lbs will keep the generator going for almost 20 hours at 50% capacity.
- Easy to use – the XP12000EH features a switch that allows you to easily select which power outlet you would like to use
- Low oil level warning system
- Refined operation at only 74 decibels
- A warranty period of 3 years
- Customer care said to be slow at times
The Longest Runtime – Pulsar PG10000B16The Pulsar PG1000B16 is dual fuel comes with a truly exceptionally long runtime. When the generator is running on gasoline, it’s got a very respectable ouput of 10,000 surge watts and 8000 running watts. When going on propane, it’s got a maximum of 9000 watts available, and a continual running output of 7000 watts.
Should your home lose power for any reason, the PG1000B16 is very capable of keeping major appliances and electricals on the go. It’s got a great runtime of 12 hours on gasoline when being run at 50% load. The runtime on propane is longer too. The power that this Pulsar generator offers is easily capable of powering large appliances, and garden machinery.
The efficient yet powerful 15hp engine is encased within heavy duty steel. It’s also got a wheel-kit that has strong and durable tires, meaning it can be easily moved over rough and jagged terrain without the worry of punctures. This makes the PG1000B16 truly very portable.
The unit can be started easily by either the traditional pull start that it’s fitted with or indeed an electric start button. On the control panel, there’s also a selector switch which allows you to change seamlessly between either propane or gasoline. The Pulsar PG1000B16 is one of the few generators on the market that allow you to switch which fuel is being used without turning off the generator’s engine.
The PG1000B16 is fitted with a number of features that make this generator as safe as it can be. It’s protected against fire and overheating by the circuit breakers that it has installed. The generator is also protected against overloading, with the overload protection that it has installed.
Should the oil level in the PG1000B16 become so low that it could start causing damage to the engine, it has a system installed that automatically detects when this low oil level is reached, and will automatically halt all operation of the generator until the oil level is topped up.
This generator is allowed to be run in all locations across the country too, due to the fact that it is CARB compliant. This means that it puts out minimal emissions, and is as good for the environment as is possible.
- Maximum Power Output of 10,000 watts
- Running Power Output of 8,000 watts
- Well-designed control panel – the PG1000B16 is very easy to use and control, with well-placed power meters and low oil level indicators
- Long runtimes – up to 12 hours when being used at 50% load on gasoline, and even more when being fuelled by propane
- Large selection of sockets – these include a number of 120v outlets. The generator is fitted with an RV-style socket, as well as a locking outlet and a 12V outlet that’s perfect for running smaller electronics. All of these make the PG10000B an ideal generator for powering a large variety of different types of appliance at the same time.
- Able to provide backup support to a lot of appliances simultaneously
- Not the quietest in the field
The Most Durable – Ford FG7750PBEThere’s no doubt that you’ll know Ford from their massive presence in the automotive industry. However, forward have also used their vast knowledge from many years in the automotive industry and applied it to power generation. They teamed up with Pulsar to make the Ford FG7750PBE. This generator is a very powerful generator that’s built to be durable, as well as that and weather-resistant.
It’s fitted with a four-stroke, 420cc single cylinder engine. It’s efficient and has a maximum power output of 7750 Watts. It will provide continuous power thereafter to a wattage of 6250 Watts.
This Ford generator is also equipped with a setting that will stop operation of the engine if the oil level falls low. Should the oil level get too low, this system will detect that and shut down the engine automatically in order to prevent any serious engine damage taking place. It is clear that the knowledge Ford has gained from the automotive industry has been applied to this generator in full.
The FG7750PBE is also equipped with an electric start button, meaning you don’t need to constantly strain whilst pulling to start the generator. However, as a backup, there is also a recoil start option too.
The most interesting point of this generator is the rubber protection that surrounds it. The Ford’s power sockets are covered with rubber flaps. This is there to guard them against bad weather, moisture, as well as dust and debris. If dirt were to get into the power outlets, it can be extremely damaging to the unit and cause it to malfunction. These rubber covers prolong the life of the generator, and also make it more suitable for use in areas where there are meant to be a large amount of airborne debris.
The FG7750PBE is fitted with a large number of different power outlets. It has four 120V standard outlets, as well as one 120-volt twist lock socket. In order to ensure safety when using the sockets, the generator is fitted with an automatic voltage regulator to guard against any power surges that might take place.
Whilst this generator from Ford is quite a heavy unit, it does come with a wheel kit fitted and its tires are designed to never go flat. This makes it extremely useful for moving over rough terrain and ground surfaces.
The running time of this generator is very respectable wear on gasoline as well as propane gas. If you’d like to know how much fuel you have left, or how much running time you have left, there is an informative digital display detailing these numbers.
Durable, dirt and weatherproof – the FG7750PBE has rubber covers protecting all of the power outlets on it. This keeps the socket safe from moisture, dirt, and airborne debris that could be present.
- Very durable – all of the power outlets on this Ford generator are protected with rubber. It’s also encased in a heavy duty frame
- Portable – comes fitted with a wheel kit that’s got tough, “never go flat” tires
- Fuel gauge and hour meter – you’ll know both how much fuel you’ve got left in the FG7750PBE as well as how much time at the current power level you’re using
- Surge Wattage of 7750 watts when being fuelled by gasoline
- Continuous Wattage of 6250 watts from gasoline
- Surge Wattage wattage of 7350 watts when being fuelled by propane
- 2 year limited warranty
- Not quite as well-known as its rivals
Best for Camping/RV – Champion 3800-Watt Dual Fuel RV Ready Portable Generator with Electric Start (76533)The Champion 76533 RV-Ready generator is truly is a great power source for camping and for use alongside an RV. These smaller units that Champion has on offer are equipped with a lot of the same high-quality features that you would get on one of Champion’s more expensive, more powerful generators, just in a small, portable and powerful package.
This dual fuel generator has a starting wattage of 4750 watts. It is able to provide continuous power of 3800 watts, which is more than enough for the vast majority if not all camping and RV use. It is also RV ready, being provided with a 120V 30A RV-socket.
Altogether, the Champion 3800-watt dual fuel comes with two regular 120V power outlets, a 120V RV-ready outlet, as well as another 120V locking socket. All sockets have got electrical surge protection too, meaning any appliances you have connected are protected against getting shocked.
At approximately 122 lbs, it’s pretty portable indeed. It can be towed using the wheels and handle provided for added ease too.
It’s an efficient generator too, providing up to 9 hours of power when fuelled by gasoline, and 10 and a half hours of power from propane gas.
The 3800 from Champion will not suffer from damage due to a low oil level either. It’s got low oil level detection and will stop running should the level of oil become lower than recommended. This acts to prevent engine damage. The control panel has a power gauge and maintenance/serving interval recommendations too.
- Maximum Power Output: 4750 watts
- Continuous Power Output: 3800 watts
- Camping and RV-Ready – the 3800 has an RV-ready 120V 30A socket
- Very Easy to Start – the electric starter means that starting the 3800 is effortless,
- Dual Fuel – the 3800 can be fuelled by either propane or gasoline
- CARB Compliant
- Could be more power outlets
The GEN4000DF from Sportsman is a very affordable generator. It’s able to provide 3500 watts of continuous power and is fitted with a lot of features that you’d find on far more expensive generators. Being dual fuel and lightweight, it’s ideal for camping and is very portable.
The Duromax XP12000EH is a true powerhouse of a dual fuel generator. It’s got every feature that you’d expect and is a very safe generator. It will cover your power needs in just about any circumstance – it’s as useful in industry as it is as a backup source of power for your home.
The Pulsar PG10000B is a generator that’s got a lot of power. It’s very capable and fuel-efficient too, being able to run for up to 12 hours at half load when being powered by gasoline. It’s got a lot of power outlets and is the ideal choice if you’re in the market for a well-priced generator.
The Ford FG7750PBE is a generator that might not be quite as well known as its rivals, but not to say that it isn’t just as good. It comes with a 2-year limited warranty and specializes in durability. All of its power outlets are covered with rubber to protect the generator from dirt and moisture. It’s the best choice for heavy-duty outside work, where a lot of dirt could be involved.
The Champion is an ideal unit for smaller outside uses. It’s small, powerful, and CARB compliant. It also produces clean power that’s perfect for smaller more sensitive devices. If you’d rather not purchase a dual fuel generator for camping, you may also be interested in the Generac IQ2000.
Last update on 2019-11-15 / Affiliate links / Images from Amazon Product Advertising API