In today’s post, we will discuss the advantages of ans find the best dual fuel generators. These machines run on either gasoline and propane, hence dual fuel.
Using only gasoline to run a generator has its issues, even though this fuel is easily available. Because propane is cheaper and cleaner, along with being quieter, a propane generator has its advantages.
This post talks about the best options out there. It has been compiled with a lot of sweat and research. The list is built on power output and price point analysis.
If you are in the market for the best dual fuel generator, keep reading.
10 Best Dual Fuel Generators: Our list
1) DuroMax XP12000EH
One of the priciest machines we’ve listed in our reviews, the DuroMax is some seriously heavy-duty stuff. It has a massive output of 12,000 W peak-to-peak and 9,500 running watts, almost double what a home requires.
Since this is such a massive generator, you can’t expect it to be very silent. There are muffler kits available though that you can purchase to reduce the noise.
The DuroMax XP12000EH is EPA approved for use in national parks.
If you have a DuroMax going for you, you can pretty much run any appliance in your home without much trouble.
It has a huge fuel tank, so it can last a very long time, too – under a 1000W load, it will last you nearly 48 hours.
The engine is a 457cc OHV engine with a power rating of 18 HP.
This dual fuel generator from DuroMax has 5 outlets:
- 2 x 120V
- 1 x 120V 30A twist lock
- 1 x 120V/240V 30A twist lock
- 1 x 120/240V 50A heavy duty
Like most of the other top-of-the-line generators, the DuroMax has an electric push-button start, as well as a backup recoil starter in case something goes wrong. The engine will shut off if the pressure gets too low.
There is also a “low oil” indicator light that lets you know when you’re running low on fuel.
- Dual fuel technology allows generator to be run on propane or gas
- Heavy duty frame with four Point fully isolated motor mounts for Smooth quiet operation
- Full power panel with oil warning light, volt meter, circuit breaker and power outlets
- Run-time on gasoline at 50% maximum output: 10 hrs. Run-time on propane at 50% maximum output: 20 hrs. (Standard BBQ tank size)
- Low oil shut-off protects engine. Quiet muffler reduces engine noise
2) Duromax Fortress Hybrid Dual Generator
The Duromax Fortress is a generator that is not too cheap and not too expensive. Of all the Duromax models we’ve listed, this one would be our last preference.
When you look at and feel the Duromax, you’ll notice that the construction of the model is not quite as “solid” as the construction of other Duromax models. The mix of metal and plastic is just OK and they could have done a better job of making the machine sturdier.
The weight savings are there, since the machine only weighs a little over 100 lbs. The wheels are also not built in – they come as an included kit which you’ll have to install.
The Duromax Fortress can do 3500 running watts.
- 2 x 120V
- 1 x 120V 30A twist lock
The generator can be started using an electric push-button or with a recoil starter. The manual included is not the best nor the clearest, and you may find yourself on the phone with Duromax when getting started.
There is a 1 year warranty of the parts, and even though the construction is OK, the 7 HP engine is quite a workhorse and should not cause you any trouble.
One of the only reasons we’ve actually listed this generator is because it is one of the quietest models that we’ve seen. With a muffler kit, the noise can be very low, close to 67 dBa, which is like a quiet street.
3) Champion 7500W Dual Fuel Generator
The Champion 7500W dual fuel generator is one of the best dual fuel generators available on the market today. It ships with oil in the tank so you can start it up right away.
It is very sturdily built, has wheels to offset the weight during transport, and can withstand the elements and rough conditions.
This dual fuel generator has a 439cc monster engine that will run for up to 30 hours on a single tank under a 1000 watt load.
Under maximum load, you’re looking at 8 hours with a tank of gas or 6 hours with a 20 pound propane tank.
One of the strongest points of this generator is the cold start. This is especially useful in cold climates – remember how cars used to have trouble starting in extremely cold weather?
- 4 x 120V
- 2 x 120V 30A twist lock
There is also a 3 year limited warranty and a great support service that you can always rely on.
- Dual Fuel - Operate your 7500-watt portable generator right out of the box on either gasoline or propane, plus the unit holds 1.2-quarts of oil (included) and has a low oil shut-off sensor
- Electric start - Power up the 439cc Champion engine with the handy toggle switch, battery included
- Intelligauge - Keep track of voltage, hertz and run-time hours to easily monitor power output and track maintenance intervals.1.5 Inch dia. tubular steel frame for protection and durability
- Powerful - At 9375 starting watts and 7500 running watts on gasoline and 8400 starting watts and 6750 running watts on propane, trust Volt Guard built-in surge protector to prevent overloads
- Champion Support - Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts
4) Ford FG7750PBE Dual Fuel Power Generator
Ford has been manufacturing engines for a long, long time. So it is no surprise that along with car engines, they also make another kind of engine: generators.
The Ford FG7750PBE has an air-cooled single cylinder engine. The capacity is 420cc and it is a 4-stroke engine.
You will get a peak output of 7750W and a rated output of 6250W, which is more than enough to power an entire home.
It also has safety features built-in such as an auto shut-off if the oil pressure drops too much. There is also an electric start so you don’t have to worry about pulling anything. There is still a recoil starter though in case you need a backup.
To keep your outlets safe from the elements, they’re all covered with a rubber cap that seals it off from any outside debris.
This Ford dual generator has 6 outlets:
- 4 x 120V
- 1 x 120V AC twist-lock
- 1 x 120V/240V twist-lock outlet
There is an in-built voltage regulator to protect your appliances and electronics from any power spikes.
Moving this generator around is also fairly easy. There are large wheels and a handle that you can use to roll it around, so the weight of the generator(which is quite a bit) won’t feel as much of an issue to you.
Finally, there is a digital display that tells you how much fuel is left. It will monitor both fuel sources, gasoline and LPG.
- 7,750W Peak/ 6,250W Rated (Gasoline) & 7,500W Peak/6,000W Rated (LPG)
- The powerful 420cc, Single Cylinder, 4-Stroke, OHV, Air Cooled Engine is protected by a Heavy-Duty Powder Coated Steel Frame
- A Large 6.6 Gallon High Capacity Fuel Tank gives you up to 10.5 Hours of Continuous Operation at half load when running on gasoline
- Dual Fuel Capability lets you choose between Gasoline or LPG fuel sources for running your generator
- Switch & Go Technology allows for seamless transitioning between LPG and Gasoline fuel sources while still in operation
5) Champion 3800W RV Ready Generator
Champion generators are some of the best names in the business, and for good reason. The Champion 3800W is a younger brother to the Champion 7500W that we reviewed at the start of the post.
The main difference between this one and the 7500W is just the power rating. Otherwise, both generators are quite similar.
Like the model number suggests, the peak rating is 4750 watts and the load rating is 3800W. It is RV-ready and the wattage is more than enough for an RV and even as a backup generator for a small home.
However, it won’t be able to run all your home appliances at once, so bear that in mind.
It has 4 outlets:
- 1 x 120V 30A twist-lock
- 1 x 120V 30A RV outlet
- 2 x 120V 20A standard outlets
There is a surge protector built in to protect your appliances from any unwanted power surges, and the generator is powered by a 224cc single-cylinder engine.
This generator is on the lighter side of the dual-fuel generator spectrum, coming in at a little higher than 100 pounds. It has wheels and a pull handle for easy transport.
To start the generator, you can use the push button or there is a backup starter as well. When the oil pressure gets too low, the generator will shut off automatically.
For monitoring power output, there is a gauge on the front of the machine. This will notify you of the output and any potential maintenance you need to do.
Champion’s 3 year warranty is a huge plus point and really backs up the dollars you’ll spend on it. The Champion 3800W is one of the most budget friendly dual fuel generators that made our list, and indeed, in the entire market.
- Ready for RV use
- CARB compliant
- Comparatively inexpensive
- Lower power rating than others
- Dual Fuel - Runs on GAS or PROPANE straight out of the box. Engine type: 4-stroke, wheel diameter: 8.0 inches
- 4750 starting watts, 3800 running watts with up to 9 hours run time on a full tank of gas and up to 10.5 hours on a 20 lb. propane tank
- Powered by a reliable 224cc Champion engine with Touch Start, push-button electric start (battery included).Gasoline Starting Amps at 120V - 39.6A.Gasoline Running Amps at 120V - 31.7A.Propane Starting Amps at 120V - 35.6A.Propane Running Amps at 120V - 28.5A
- Frequency: 60 Hz. Outlets - 120V 30A RV, 120V 30A locking, two 120V 20A household outlets all secured by Volt Guard, protects your appliances from power surges
- Champion Support - 3 year limited warranty with FREE lifetime technical support. Refer instruction manual before use.
6) Duromax XP4850EH Dual Fuel
While the Duromax XP4850EH dual fuel generator is not as powerful as other generators – with a rating of 3850 watts under load(and 4850 peak watts), it’s still quite affordable for a generator that uses a 7 horsepower engine with a 196cc capacity.
The generator has an electric key start and a recoil starter as a backup. On the panel, you’ll find a voltage meter that shows how much voltage the generator is pumping out, as well as a low oil light and the outlets/
To switch from gas to propane, you can flick a switch and the generator will begin using the other tank.
The good thing about the Duromax is the built in muffler, which greatly reduces the noise levels.
Transporting is also quite easy. This generator weights only 130 pounds, and has tires and well designed handles that make transporting a breeze.
- Dependable 7 HP air cooled DuroMax OHV engine. Engine displacement (cc): 212
- Heavy duty frame with four point fully isolated motor mounts for smooth quiet operation
- Rated AC Output: 3,850 watts. Max AC Output: 4,850 watts. Two 120-Volt, 20 Amp, 3 prong outlets (standard household plug)
- Full power panel with advance oil warning light, key start switch, volt meter, circuit breaker and power outlets; Low oil Indicator lamp and shutoff. Decibels (db): 69
- EPA Approved For Safe Use In National Parks. Flexible line allows for connecting to tanks of any size
7) Firman H03651 Hybrid Series
Even though this dual fuel generator is from a relatively unknown brand, it still makes our list because the manufacturer offers a 3 year warranty, which is very rare in this market.
To start the Firman generator, you use the electric start. If that does not work for whatever reason, there is a recoil starter backup, too.
In order to change the fuel source from gasoline to propane, you just need to hit a switch(and have the fuel in the tank, obviously).
There is also a built in fuel gauge, something often overlooked in most generators but very useful for knowing when you’re going to run out.
There are four outlets that include covers on them to protect them from the outdoors.
You can also use it in an RV, as there is a 120V 30A outlet especially meant for RVs.
There are 2 120V outlets and a third 120V 30A outlet.
It is very sturdy, comparatively lightweight(considering it is a generator), and it has nice large wheels and a handle so you can move it around in a cinch.
The engine in this generator is a 4-stroke, 7 HP OHV engine that can churn out 4550 peak watts or 3650 running watts with gasoline.
If you’re using propane(LPG), then you’ll get 4100 peak watts and 3300 running watts.
There’s also an automatic shutoff feature in case the pressure gets too low.
- Outlets are covered
- Ready for use in an RV
- Only 2 outlets
- Not as common so less community help in case something goes wrong
- Ready for any task, The H03651 Hybrid Dual fuel portable generator provides power on demand. Great for For camping, emergency power, work-site and great outdoors. California emission certified
- 208cc dual fuel engine with low oil shut off and cast iron sleeve
- 5 gallon tank provides 14 hours of runtime. Propane tank not included. 5. 5 ft LPG regulator hose included.
- RV ready multi feature control panel with covered outlets *see specs for full list
- 8" heavy duty Never-Flat wheels and high leverage u-shape Folding handle
8) Sportsman GEN4000DF: The DF stands for Dual Fuel
The Sportsman GEN4000DF is a very minimalistic dual fuel generator. It is one of the cheapest options available, and many features found in higher end models are not present. However, if budget is your primary concern, then this is worth considering.
The engine is relatively weak and can only generate 3500 running watts, which will not be enough for a home but it will be good enough for an RV or for a backup power source.
Some of the features that are not present are the electric start – the only way to get this generator going is with a recoil cable.
On the front of the generator, you’ll find a voltage meter, the power switch, circuit breakers, and power outlets:
- 4 x 120V
- 1 x 120V RV outlet
- 1 x 1-12V DC outlet
The Sportsman is also a great choice for camping and tailgating. Weighing just 90 pounds, it is one of the lightest generators we have reviewed. The challenge will be moving it, though, since it does not have any wheels.
- 4,000 Watts Rated, 3,500 Starting Watts; Outlets: 4-120V outlets, 1-120V RV outlet, 1-12V DC outlet, regulator hose kit included
- Dual Fuel Capable - operates off Propane or Gasoline, 212cc OHV Engine; EPA approved
- Runs for 10 hours on a full tank of gas (3.6 gal.) or propane tank at 50% load, Decibel rating < 69 decibel
- Recoil Start, Weight: 90 lbs.; Dimension: 24.5" (L) x 17" (W) x 16.5" (H)
- 1 Year Limited Warranty
9) Pulsar PG10000B16 Dual Fuel High Power Generator
The Pulsar PG10000B16, as the number in the model name suggests, is an incredibly high power generator capable of outputting 10,000 peak watts and 8,000 watts under load. This is running on gasoline.
If running on propane, the peak watts will be 9,000, and the running watts will be 7,000, which is still quite a lot and more than enough to power a normal sized home.
As a result the Pulsar PG10000B is a great choice for a backup generator for homes. It has a super long run time: with a 1000 watt load, it can last up to 48 hours before needing refilling again.
- 4 x 120V
- 1 x 120V/240V twist lock
- 1 x 120V 30A RV outlet
- 1 x 120V 50A outlet
Since there is an RV outlet, this generator is RV ready and can be good to go right out of the box.
It weighs 200 lbs, but the wheels and twin handles make moving it around quite a straightforward job.
Pulsar offers a 2 year warranty, have good customer service, and also include a surprisingly in-depth and detailed manual.
- 10, 000W peak 8000W rated (gas)/ 9000W peak 7000W rated (LPG)
- The powerful 420cc, 4-stroke, OHV, air cooled Engine is protected by a durable powder coated Steel frame
- A large 6. 6 gallon fuel tank give you up to 12 hours of continuous operation at half load when running on gasoline
- Switch & Go technology allow for seamless transitioning between LPG and gasoline fuel sources while still in operation
- Electric push start with recoil backup make start-up quick and easy, so you can get up and running with less hassle
Can a dual fuel generator power an entire home?
To power an entire home, you need about 5000-6000 watts of energy. This is considering you have an average sized home and an average size family.
For larger homes and more users, you’ll need more wattage.
5000 watts should be able to power most of the electricity in your home, except for electric furnaces or heaters – these are energy guzzlers and will require a lot more energy – somewhere in the range of 15,000 watts.
If you have a gas heating system(for both water and air), you should not have any issues.
Another utility that draws a lot of energy is a well pump, which typically uses nearly 4000 watts. The best way to know if your home will be fine with your generator is to just add up the wattages of the appliances you wish to use at any one point in time and that should give you a good idea.
Regardless, if you are unable to run your whole house with a generator, you can certainly use it as an emergency power source when the grid is down and keep the critical appliances running.
Like cars in many countries, it is possible to convert a gasoline generator so that it will operate on LPG. Some mods even let you use LPG as a backup source. It’s not very easy to do but there are tutorials out there.
There are also conversion kits available which you can use.
However, the straightforward solution would be to just get a dual fuel generator! This will relieve you of the challenges and potential hair pulling of a technical DIY project.
Unless you’re the DIY type, in which case, knock yourself out!
Not only are portable generators good for emergencies but they’re also a useful utility to have for camping, RVing, and tailgating.
Since you’re using a dual fuel generator you can use gasoline where propane is not available and propane when it is – though you’d prefer using propane, since it is more eco friendly and it is also cheaper.
The dual fuel generator models that we’ve listed in this post are all great performers and they would not have made our list had we not been confident in them.
STILL HAVE TO EDIT
As you have seen from the reviews above, a number of the dual fuel generators we reviewed above have an RV outlet out of the box and can be used immediately in your camper:
- Firman H03651 Hybrid Series
- Champion 3800W
- Pulsar PG10000B
- Sportsman GEN4000DF
The other generators can be easily made RV compatible using an adapter:
POWER CONVERSION MADE EASY, premium quality electrical adapter cord converts power from a 50 Amp ( 14-50 ) power cord, (found on most recreational vehicles) to a 30 AMP ( L14-30P) generator type connector. Keep those batteries charged and run small appliances up to 30amps. With its superior conductivity due to the use of 100% 10Awg copper wire and connectors, you can enjoy effortless transmit of power to your RV.
SUPERIOR DURABILITY, this 12" adapter is constructed from a high quality PVC jacket (STW RATED) that's both heat and cold resistant, allowing the adapter to function in extreme temperatures. Plugs are molded to the cord for a superior water tight connection.
EASY ERGONOMICAL HANDLE Finger grip handle make plugging or unplugging the cord adapter a breeze. Molded and made of heavy-duty polyvinyl plastic.
RV MUST-HAVE ACCESSORY, when park power isn't available and a generator is required. Super-convenient when you are camping or RVing around the country, this camping RV accessory has extra durability and will still stay flexible in hot and cold conditions. Perfect for RV, popup trailer, camping trailer, travel trailer owners.
PROLINE WARRANTY & 100% SATISFACTION, this premium quality 50 to 30 amp RV adapter comes with a best in class limited LIFETIME warranty and amazing customer support from PROLINE. You ever have an issue with one of our adapters, send it back and will replace it at no charge.
- Comfort grip with non-slip grooves
- One-piece heavy-duty construction
- Connect a generator with L5-30 locking plug to an RV with a standard 30 AMP RV cord set
- Connects a L5-30 30 AMP locking receptacle to a TT-30 30 AMP standard cord set plug
- 12" length adapter
- Patented PowerGrip handle makes pluging and unpluging easier
- Connect your generator to your RV
- Rated for 125V/3750W
Dual Fuel VS Gasoline Only
The advantage of a dual fuel generator is that in emergencies, you have the option of using whichever fuel is available to you. Also, if you happen to have both full tanks, then you can effectively double your running time.
- Available everywhere
- Toxic fumes
- Can’t be stored for a long period of time without stabilizer
- Works better in the cold than LPG
- Cheaper than gasoline
- Can’t be spilled
- Quieter running
- Less carbon monoxide in fumes
- Less wear and stress on engine
- Can be stored for a long time