Dual Fuel Generators let you take advantage of both types of fuel: gasoline and propane.
While gas is always easily obtainable, it has some disadvantages. A dual fuel generator lets you use propane as needed. Propane fuel is cheaper, cleaner, and quieter.
I’ve created this list of the best dual fuel generators based on experience and research.
These are the best options available on the market right now. I’ve included models at a range of price points and with a range of power, so you’ll be able to find the right one for you no matter your needs.
|Picture||Generator||Rated AC Output||Estimated Run-time on Gas (1000W load)||Weight||Price Range|
|Champion Dual Fuel 7500
|7500W (6750W on LPG)||30 Hours 00 minutes||218 lbs||$$$$|
|Duromax XP10000EH Dual||8000W||40 Hours 00 minutes||265 lbs||$$$$||DuroMax XP4850EH||3850W||15 Hours 30 minutes||130 lbs||$$|
|DuroMax Fortress Hybrid||3500W||14 hours 00 minutes||130 lbs||$$$$|
|Pulsar PG10000B||8000W (7000W on LPG)||48 Hours 00 minutes||204 lbs||$$$$$|
|DuroMax XP12000EH||9500W||47 Hours 30 minutes||269 lbs||$$$$$|
|Champion RV Ready 3800W||3800W (3420 on LPG)||17 Hours 05 minutes||122 lbs||$$|
|Ford FG7750PBE Dual Fuel||6250W (6000W on LPG)||33 Hours 00 minutes||196 lbs||$$$|
|Firman H03651 Hybrid Series||3650W||25 Hours 30 minutes||140 lbs||$$|
|Sportsman GEN4000DF||3500W||17 Hours 30 minutes||90 lbs||$$|
Champion 7500W Dual Fuel - My #1 Choice for Best Dual Fuel Generator
This is the gold standard in dual fuel generators. It has an electric push-button start for the epitome of convenience.
Because it comes with oil, it’s ready to go right out of the box with either gasoline or propane (I still advise you to break in the generator). It’s fairly heavy, but it comes with a wheel kit and nice sturdy tires that will never go flat.
The construction is very tough and sturdy and should be able to handle less than ideal conditions.
The 439cc Champion engine is a trustworthy workhorse that you can count on. Champion also backs this generator up with a 3-year limited warranty with free lifetime technical support.
You’ll get a nice long runtime with this generator, up to 30 hours with gasoline and a 1000 watt load.
Even when operating at a maximum load, you’ll get 8 hours on a full tank of gas or nearly 6 hours on a 20 lb – propane gas tank.
A big advantage to this generator is the cold start ability. If you live in a climate where it gets pretty cold, you’ll have trouble getting a lot of generators to start, but this one will start up without any problems.
Another plus is the surge protector that is built right into the panel to protect your devices in the event of a spike. There are four 120V outlets and two 30A locking outlets.
Duromax XP10000EH - A Lot of Power and Quieter Than You Might Expect
This Duromax generator is surprisingly quiet, especially when compared to similar dual-fuel generators. For this amount of power, a noise level of only 72 dBa is pretty surprising.
This quiet exhaust is due in part to the built-in spark arrestor.
Although this is EPA-approved, it doesn’t quite meet the rigorous California CARB standards.
This is another generator with an easy electric start. In this case, starting the generator up is as easy as turning a key. In case the battery for the electric start is low or dead, there is a backup pull cable recoil starter you can use instead.
Weighing in at 265 pounds, this generator is a beast but the solid-fill tires and pull handle make transport easy.
With a peak power of 10,000 watts and 8,000 running watts, this generator can power most homes in the event of a power loss (Check out my calculator to evaluate your needs).
The power comes from the large 18 HP OHV 4-Stroke air-cooled engine. The main power panel keeps everything you need organized and easy to find.
There are gauges and lights for important output and maintenance information. This is also where you will find the six outlets, including:
This generator comes with a 1-year factory warranty. Unfortunately, Duromax is not known for having great customer service.
It’s a pretty serious investment, so the shorter warranty and the potential customer services issues may be off-putting for some people.
Duromax XP4850EH - An Affordable Dual Fuel Option
It doesn’t offer as much power as some, but it has a lot to offer at a very affordable price. Rated for 3850 watts with a peak of 4,850 watts, this generator runs on a 196cc 7 Horsepower air-cooled engine.
Switching from gas to propane and back is as easy as flipping a switch.
The rest of the operation is similarly user-friendly.
It features an electric key start with a backup recoil starter. The front panel includes a voltage meter, a circuit breaker, a low-oil light, and the outlets.
It’s relatively light at 130 pounds, but there are solid-fill tires, high leverage side handles, and a folding pull handle to make transport even easier.
Because of the noise-reducing oversize muffler, this generator will only be around 69 dBa.
Duromax is not known for having stellar customer service, but this generator does have a generous 3-warranty.
Sportsman GEN4000DF - RV-Ready Budget Option
If you have a really small budget, this dual fuel generator from Sportsman is worth looking at. Despite the low price tag, it has a lot of important features.
The 7 HP engine doesn’t have a ton of power, but the 3500 running watts will be more than enough for most users.
There is not an electric start, just a pull cable recoil starter. The front panel is well organized, with a voltage meter, an on-off switch, circuit breakers, and six outlets.
There are four 120V outlets, one 120V RV outlet, and one 1-12V DC outlet. At only 90 pounds, it’s one of the lightest portable dual fuel generators.
That said, it does not have wheels and 90 pounds is heavy enough to make transport a challenge.
This is another surprisingly quiet generator, with a 69 dBa rating, quiet enough to be able to still hold a conversation nearby.
This makes it a decent option for camping and tailgating. It is also fully RV-ready.
Duromax Fortress Hybrid - A Quiet Duromax With Some Potential Problems
This Duromax generator comes in at a mid-range price point and features positives and negatives. A big downside to this model is the quality of construction.
Although the heavy-duty steel frame is sturdy, the overall metal and plastic build quality just aren’t as nice as the sturdy construction on other Duromax models.
It weighs over 100 pounds, but it does come with a wheel kit to help with transport.
With 3500 running watts, it would be nice if there were more outlets like you see on comparable models.
There are only two 120 volt AC outlets and one 30A locking outlet.
Overall, the ease of use factor is pretty high.
There is an electric key start as well as a backup recoil starter.
An auto-shutoff feature for when the oil gets too low prevents damage to the engine.
Because of the comparatively poor construction and the poor manual, there’s a good chance you might need to connect with customer service.
Unfortunately, Duromax isn’t known for having great customer service.
In addition, there is just a 1-year warranty for parts. The 7.0 HP air-cooled engine, at least, should be durable and reliable, especially when you use propane for fuel.
Another big positive for this generator is the noise level. A muffler helps keep the noise to a minimum, around 67 dBa.
Pulsar PG10000B16 - A High-Powered Portable With Super Long Runtime on Both Fuels
This is one of the higher-powered portables you’ll find, especially with dual-fuel capability. This Pulsar generator has 10,000 peak watts and 8,000 running watts on gasoline or 9,000 peak watts and 7,000 running watts on propane.
That’s enough to power most homes, so this is a good home backup power option. The 420cc 15 HP engine starts right up with an electric push-button start.
It features the best runtime on the market, an astounding 48 hours when running a 1000 watt load on gasoline (my estimation based on 1/2 load consumptions figures).
There are plenty of outlets, including four 120V outlets, one 120V/240V twist-lock outlet, one 30 AMP RV outlet, and one 50 AMP outlet.
It is fully RV-ready. It weighs just over 200 pounds, but the no-flat wheels and convenient dual handles make transport quite easy.
This generator has a lot to offer but it’s not insignificant to note that it comes with a manual that is actually clear and helpful.
Pulsar really stands out for this seemingly minor detail. They also offer a 2-year warranty and are known for having decent customer service.
Champion 3800W RV Ready - An Affordable Champ
Once again, Champion lives up to their name. This offers quite a bit less power than the Champion 7500W, but all of the same quality and great features.
It has 3800 watts and 4750 peak watts, perhaps not enough to power everything in your home but more than enough for most projects.
It’s a particularly good dual fuel option for RVs as it is fully RV-ready:
It has a volt guard surge protector built right in, so your more sensitive electronics will be protected from any surges or spikes.
The generator has a 224cc Champion single-cylinder OHV engine known for being dependable.
It features an electric touch button start, and it has cold start technology.
At just a bit over 100 pounds, it’s one of the lighter dual-fuel generators, but it’s still heavy enough to make the never-flat wheels and pull handle very welcome.
For its size and power capabilities, it has a decently long runtime.
There is an auto-shutoff function for when the oil gets low.
A gauge on the front panel keeps you informed of your power output as well as alerting you to pressing maintenance concerns.
Champion generators are generally reliable and trustworthy but they back it up with a 3-year limited warranty and free lifetime technical support.
That can really give a lot of peace of mind when making this kind of investment.
That said, this is one of the most affordable dual fuel models on the market. It’s also one of the models with the best reviews (click here to read buyer reviews on Amazon).
DuroMax XP12000EH - Maximum Power From "The Beast"
It requires a pretty big investment, but if you need a ton of power, this Duromax has plenty of it. It’s known as the beast for a good reason.
It’s a big machine ready for anything. With 12,000 peak watts and 9,500 running watts, you should be able to power your home as a backup power source if needed.
It has an extra-long runtime, up to almost 48 hours when running at a 1000W load.
The 18 HP 457cc OHV engine is a workhorse.
It’s pretty heavy, but it is also portable thanks to the wheels and pull handle.
For as much power as it offers, it’s unfortunate that there are only two 120V outlets.
There is also one 120V 30A twist-lock outlet, one 120v/240v 30A twist-lock outlet, and one 120v/240v 50A heavy duty outlet.
Overall, the operation is quite user-friendly. It has an electric start with a backup recoil starter.
The engine will automatically shut down if the oil gets too low and there is also a light that warns you in advance when the oil is getting low.
A dual fuel generator of this size isn’t going to be quiet, but a muffler and spark arrestor reduces the noise by quite a bit.
Ford FG7750PBE - Built Ford Tough
You know Ford as an automotive leader, but they’ve taken their expertise there and applied it to the generator market in association with pulsar.
This model has a 4-stroke air-cooled 420cc single-cylinder OHV engine that gives you a peak output of 7750W and a rated output of 6250W.
The engine will shut off if the oil gets too low.
Ford’s experience and innovation in the automotive industry definitely carry over to this engine. You can expect this generator to last and to perform reliably.
It has a convenient electric start with a recoil starter backup.
All of the outlets have rubber covers to protect them from the elements and dust.
There are four 120-Volt AC outlets, one 120-Volt AC twist-lock outlet, and one 120/240V AC twist-lock outlet.
An automatic voltage regulator protects your electronics from any spikes or surges.
This generator is pretty heavy, but it does have never-flat tires and a convenient handle. It offers a long runtime on gas, and there is a helpful digital display of how much time you have left (LPG or gasoline).
Firman H03651 Hybrid Series - The Best Warranty
Firman is a brand that isn’t quite as well-known, but this dual fuel generator is worth looking at. A major advantage is that it comes with an industry-leading 3-year warranty.
This generator is easy to use. It has an electric start with a recoil starter backup.
Switching the fuel source just involves the flip of a switch.
It has a fuel gauge, a helpful but surprisingly rare feature on a generator.
The four outlets are covered, helpful for keeping them protected from dust and the elements. It has an automatic voltage regulator to protect your electronics.
It is RV-ready with a 120V 30A RV outlet.
It also has two standard 120V outlets and another 120V 30A outlet.
The construction is sturdy, and it is relatively lightweight. There are also big never-flat wheels, and a pull handle to make transport even easier.
It has a 4-stroke 7 HP 208c OHV engine that will give you 4550 peak watts and 3650 running watts with gasoline or 4100 peak watts and 3300 running watts with LPG.
If the oil pressure gets too low, your engine is protected with an automatic shutoff feature.
Buyer's Guide - Choosing the Best Dual Fuel Generator
With so many dual-fuel generators available on the market today, it can be hard to narrow down your choices to pick the best generator for your needs. It doesn’t matter if you are a beginner when it comes to generators or you are an expert, you will probably still have a question or two along the way.
Hopefully, this brief buyer’s guide will help you narrow down your choices and simplify the overall process as you look for the best dual fuel generator.
The size generator you choose comes down to how much available space you have and how much power you need to generate. You also want to make sure that what you choose is of a high-quality and can power all the appliances you have in mind.
Many generators that run on gasoline are often loud. A dual generator, however, uses two different fuel types so you can somewhat control the noise levels. Another factor when determining the noise level is where you are placing the generator. Will it be further away from the home or closer, which allows the noise to affect you more.
What appliances do you need to power with your generator? Consider the power input your appliances take, and then you can better determine just how much power you will need to start up and run everything efficiently.
It is easy to find an affordable and high-quality dual fuel generator, and this makes it a lot easier to find exactly what you need while sticking to the budget you have.
Finally, you need to consider the purpose of your generator. If you need to use it in different locales such as outdoor events, then you will want to make sure that the generator is easy to transport. However, if it is strictly for home and office use, then you don’t need to worry as much about its portability.
Several of these dual fuel generators are RV-ready, and the rest can be made RV-compatible with an adapter. Of these, the Firman H03651 Hybrid Series, Champion 3800W, Pulsar PG10000B, and Sportsman GEN4000DF are all great options for an RV-compatible generator.
My top recommendation would be the Champion 3800W because it offers a decent amount of power, some great features, and dependability at an affordable price.
Gasoline is readily available and the easiest type of fuel to obtain. That said, gas tends to be more expensive. Gasoline fumes can also be toxic, and it can be easy to spill. Propane fuel has a number of major advantages. Liquid propane gas or LPG is quite a bit cheaper and it’s nearly impossible to spill.
Liquid propane is also a cleaner burning fuel so there will be less wear on the engine over time. A generator running on LPG will be quieter. There is also less carbon monoxide released with LPG. While gasoline needs fuel stabilizer when stored for more than a few months, LPG can be safely stored for much longer.
A tank of LPG will also last much longer. In extreme cold, gasoline will probably work better than propane. The major advantage of a dual fuel generator over a gas generator is that it gives you options. In the case of certain natural disasters, one type of fuel may be more readily available than the other.
A dual fuel model can also extend your total runtime as you can use up a full tank of gas and then switch over and use up your full tank of propane.
Many of these dual fuel generators will offer enough power to run the majority of your home. If you want a generator that will power your entire home, your best bet is a generator that is rated for at least 5000 watts. If you have an electric furnace or a heat pump, you will likely not be able to power them with any of these generators.
You’ll typically need 15,000 watts or more to power these, but you should be fine if you have a gas or forced air heating system. If you have a well pump, you can expect that to take quite a bit of your generator’s load (3800 watts or more). To know for sure if a dual fuel generator will run your entire home, you’ll need to add up the wattages of all the appliances and tools you want to run concurrently. Even if you cannot use your generator to run your entire home, you should be able to use it to run the most important appliances to keep you going during a power outage.
Yes, it is possible to convert a standard gasoline generator to run on LPG instead or as a backup fuel source. The conversion process isn’t necessarily a simple job, but there are some helpful tutorials like this one that can walk you through the process. You can also purchase conversion kits for the project. Just buying a dual fuel generator in the first place means you won’t have to deal with the challenges of this DIY project.
A single fuel generator is one that can run off natural gas, propane, gas, or diesel. However, when you have a dual fuel generator, there are two different fuel types you can choose. So, if you were to run out of your preferred fuel, there is still an available backup until you can get more of the fuel you are out of.
If you have several appliances plugged into your generator and you are exceeding the generator’s total allowed wattage, then your generator is not going to be protected against an overload when using a circuit breaker. The system will eventually begin to overheat and can cause significant damage to your generator.
Dual fuel generators run on two different fuel types. You can choose from gasoline, liquid propane, diesel, and natural gas. Tri-fuel generators run on three different fuel types and is a better option in an emergency situation in case you can’t get your preferred fuel delivered. Tri-fuel generators can run on natural gas, propane, and gasoline and both generators allow you to switch fuel types according to weather conditions as well.
A portable generator is nice to have on hand for emergencies, but it can also be a nice everyday tool for working in remote locations or for camping and tailgating.
With a dual fuel generator, you get the advantages of both gasoline and propane. Because propane is a cleaner energy source, dual fuel generator engines will last longer.
Each of these ten dual fuel generator models offer something different, and they all perform extremely well.
Have you ever used a dual fuel generator? Which fuel type do you prefer? Let me know in the comments below, don’t hesitate to ask questions too!
Please share this list with anyone you know who might be looking for a new generator.