Best Dual Fuel Generator (2020) – Buying Guide and Reviews

Updated On: October 14, 2020
By
Champion
Low Power
  • 3400 / 3060 Surge Watts
  • 3100 / 2790 Rated Watts
  • 1.6-Gallon Tank
  • 7.5 / 14.5 Hours @ 25% Load
  • EPA and CARB Compliant
WEN
High Power
  • 11000 / 9500 Surge Watts
  • 8300 / 7500 Rated Watts
  • 6.6 Gallon Tank
  • 8.5 / 3 Hours @ 50% Load
  • EPA and CARB Compliant

Dual fuel generators are handy things to have, especially at home. In case there’s an emergency or electric shortage, you’re assured that your home has a reserved power, and you don’t have to worry.

These engines make use of gasoline and propane in generating electricity, which makes it more reliable than other generators.

They perform better, give more power than regular ones, and are usually cheaper. Still skeptical about whether you should get the best dual fuel generator or not?

Well, you better not.

Single Fuel vs. Dual Fuel Generators

Single Fuel generators typically run on only one fuel source like gasoline, diesel, natural gas, or propane.

On the other hand, dual-fuel generators, as its name suggests, can run on two fuel sources such as gasoline and propane. With dual fuel generators, you can alternate using one fuel and another, or even both, while single fuel doesn’t offer the same convenience.

Sustainability

Dual fuel generators are more eco-friendly. Natural gas burns better and cleaner than standard gasoline, and it is accessible and less expensive. You can easily find natural gas to supply your dual fuel generators without any problem.  

Reliability

Single fuel generators are just as useful as dual-fuel generators, but they’re not as convenient and reliable. It relies mainly on one fuel supply, which doesn’t give you enough flexibility in terms of fuel choice.

Fuel-based Runtime

Like dual-fuel generators, you cannot alternate between one fuel source from another on Single fuel models. There’s always a risk that you might run out of fuel supplies, which would leave your generator useless.

However, single fuel generators are also as functional as other generators because they can get the job done, and covers the essential functions of generators.

ChampionChampion 100402 - 2,000-Watt Dual Fuel Inverter Generator
    • Starting Power: 2000 Watt (G) / 1800 Watt (P)
    • Running Power: 1600 Watt (G) / 1440 Watt (P)
    • Noice Label: 53dB (From 23 Feet)
    • Operating Time: 11h (G) / 24h (P) @ 25% Load
    • Fuel Tank Size: 1.1 Gallon
    • Weight: 47.6lbs
Best 3kWChampionChampion 3400-Watt Dual Fuel Portable Inverter Generator
    • Starting Power: 3400 Watt (G) / 3060 Watt (P)
    • Running Power: 3100 Watt (G) / 2790 Watt (P)
    • Noice Label: 59dB (From 23 Feet)
    • Operating Time: 7.5h (G) / 14.5h @ 25% Load
    • Fuel Tank Size: 1.6 Gallon
    • Weight: 95.7lbs
Budget 3kWSportsmanSportsman GEN4000DF -  Both Gas & LPG Powered Portable Generator
    • Starting Power: 4000 Watt (G) / 3600 Watt (P)
    • Running Power: 3500 Watt (G) / 3100 Watt (P)
    • Noice Label: 69dB (From 23 Feet)
    • Operating Time: 10h (G) / 12h (P) @ 50% Load
    • Fuel Tank Size: 3.6 Gallon
    • Weight: 90lbs
Best 4kWWestinghouseWestinghouse iGen4500DF Dual Fuel Inverter Generator
    • Starting Power: 4500 Watt (G) / 4050 Watt (P)
    • Running Power: 3700 Watt (G) / 3330 Watt (P)
    • Noice Label: 52dB (From 23 Feet)
    • Operating Time: 18h (G) / 18h (P) @ 25% Load
    • Fuel Tank Size: 3.4 Gallon
    • Weight: 98lbs
PulsarPulsar PG5250B - 5,250 Watt Dual Fuel Portable Generator
    • Starting Power: 5250 Watt (G) / 4750 Watt (P)
    • Running Power: 4250 Watt (G) / 3850 Watt (P)
    • Noice Label: 78dB (From 23 Feet)
    • Operating Time: 12 hour @ 50% Load
    • Fuel Tank Size: 4 Gallon
    • Weight: 120lbs
LighweightChampionChampion 7500-Watt Portable Dual Fuel Generator
    • Starting Power: 9375 Watt (G) / 8400 Watt (P)
    • Running Power: 7500 Watt (G) / 5750 Watt (P)
    • Noice Label: 74dB (From 23 Feet)
    • Operating Time: 8h (G) / 5.5h (P) @ 50% Load
    • Fuel Tank Size: 6 Gallon
    • Weight: 200.6lbs
FirmanFirman H08051 - 8000 watt Dual Fuel CARB Generator
    • Starting Power: 10000 Watt (G) / 9050 Watt (P)
    • Running Power: 8000 Watt (G) / 7250 Watt (P)
    • Noice Label: 74dB (From 23 Feet)
    • Operating Time: 12 hours @ 50% Load
    • Fuel Tank Size: 8 Gallon
    • Weight: 212lbs
Budget 10kWAll Power AmericaAll Power America Generator APGG10000GL 8000 Watt Generator
    • Starting Power: 10000 Watt (G) / 8500 Watt (P)
    • Running Power: 8000 Watt (G) / 7000 Watt (P)
    • Noice Label: 76dB (From 23 Feet)
    • Operating Time: 11 hours (50% Load)
    • Fuel Tank Size: 8 Gallon
    • Weight: 235lbs
Best 10kWWENWEN DF1100T 11000 Watt Dual Fuel Generator – Both Gas & Propane
    • Starting Power: 11000 Watt (G) / 9500 Watt (P)
    • Running Power: 8300 Watt (G) / 7500 Watt (P)
    • Noice Label: Not Tested
    • Operating Time: 8.5h (G) / 3h (P) @ 50% Load
    • Fuel Tank Size: 6.6 Gallon
    • Weight: 213.8lbs
Fuel EfficientWestinghouseWestinghouse WGen9500DF Dual Fuel Portable Generator
    • Starting Power: 12500 Watt (G) / 11200 Watt (P)
    • Running Power: 9500 Watt (G) / 8500 Watt (P)
    • Noice Label: 74dB (From 23 Feet)
    • Operating Time: 12h (G) / 7h @ 50% Load
    • Fuel Tank Size: 6.6 Gallon
    • Weight: 220lbs
DuroMaxDuroMax XP13000EH Portable Propane Or Gasoline  Generator
    • Starting Power: 13000 Watt (G) / 12350 Watt (P)
    • Running Power: 10500 Watt (G) / 9975 Watt (P)
    • Noice Label: 74dB (From 23 Feet)
    • Operating Time: 8.5h (G) / 6.5h (P) @ 50% Load
    • Fuel Tank Size: 8.3 Gallon
    • Weight: 260lbs

Best Dual Fuel Generator Reviews – Both Gasoline and Propane

Gas generators on its own are more expensive than some of the dual-fuel options. Propane is significantly cheaper and cleaner than gas. Combined with gasoline, it creates an efficient dual generator, reliable in different kinds of uses.

Champion 100402 – 2,000-Watt Dual Fuel Inverter Generator

Champion 100402 - 2,000-Watt Dual Fuel Inverter Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 2000 Watt / Running: 1600 Watt
Starting: 1800 Watt / Running: 1440 Watt
Noise Level53db (From 23 Feet)
Operating Time11 hours / 25% Load (Gasoline)
24 hours / 25% Load (Propane)
Fuel Tank Size1.1 Gallon
Starting MethodRecoil Pull Start
Weight47.6lbs

Enjoy a quiet 53dBA machine for up to 11 hours. The Champion Power Equipment is highly reliable and possesses a versatile power as a dual fuel inverter generator.

This generator is ideal for a lot of outdoor activities, such as camping, tailgating, or powering up some appliances on your RV. It can operate on both gasoline and propane, and it even has an EZ Start Dial, which lets you switch from one fuel to another with ease.

There’s also a reliable digital power panel which can indicate oil level, power output, run time, fuel life, economy mode, and if maintenance is necessary.

Pros
  • EZ Start Dial
  • Inverter technology and parallel ready
  • Very Quiet Operations
  • Compact, impact-resistant design
Cons
  • May sometimes have trouble in Customer Service

Champion 3400-Watt Dual Fuel Portable Inverter Generator

Champion 3400-Watt Dual Fuel Portable Inverter Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 3400 Watt / Running: 3100 Watt
Starting: 3060 Watt / Running: 2790 Watt
Noise Level59db (From 23 Feet)
Operating Time7.5 hours / 25% Load (Gasoline)
14.5 hours / 25% Load (Propane)
Fuel Tank Size1.6 Gallon
Starting MethodRecoil Pull Start, Electric
Weight95.7lbs

This dual fuel generator allows you to run the engine on gasoline or propane. Have fun using this generator for up to 7.5 hours on gas, and 14 hours on 20lbs propane tank, without worrying that it’ll make noise.

The Champion 3400 watt Portable Inverter Generator is perfect for your small house and even your RV. It combines versatility and convenience in one piece of equipment, making it the ideal choice for everyone, even those who are always on the go.

You can take the Champion straight out of the box, and you’ll have yourself a portable generator running on either propane or gasoline anytime, anywhere.

Pros
  • Duel Fuel
  • Lightweight, portable, and quiet
  • Touch start and Quick Touch Panel
  • Clean Power
  • Economy Mode
Cons
  • No remote starter

Sportsman GEN4000DF – Both Gas & LPG Powered Portable Generator

Sportsman GEN4000DF -  Both Gas & LPG Powered Portable Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 4000 Watt / Running: 3500 Watt
Starting: 3600 Watt / Running: 3100 Watt
Noise Level69db (From 23 Feet)
Operating Time10 hours / 50% Load (Gasoline)
12 hours / 50% Load (Propane)
Fuel Tank Size3.6 Gallon
Starting MethodRecoil Pull Start
Weight90lbs

This Sportsman generator has excellent power and flexibility to handle any task it’s faced with. It’s the perfect equipment to have on the road if you’re running the RV, or powering appliances when there’s a power outage.

The generator can run on either propane or gasoline, so you can always use it. It’s especially convenient because you have a choice based on which is readily available in your location, or more affordable for the moment.

It packs a 4000 peak watt and 3500 rated watts on gasoline, making it a powerful generator for handling many recreational activities for home use, and even job sites for most contractors. You can always rely on having a long-lasting and clean-burning advantage when you use propane and the benefits of using unleaded gasoline.

Pros
  • Easy to Use
  • Works Great
  • Perfect for RV’s
  • Starts up easily
Cons
  • No electric start

Westinghouse iGen4500DF Dual Fuel Inverter Generator

Westinghouse iGen4500DF Dual Fuel Inverter Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 4500 Watt / Running: 3700 Watt
Starting: 4050 Watt / Running: 3330 Watt
Noise Level52db (From 23 Feet)
Operating Time18 hours / 25% Load (Gasoline)
18 hours / 25% Load (Propane)
Fuel Tank Size3.4 Gallon
Starting MethodRecoil, Electric, Remote
Weight98lbs

This quiet and fuel-efficient generator is perfect for any setting. Its 5.5-inch wheels make it easy to bring around, especially for camping, picnics, and even pool parties. This is the ideal generator for anyone who’s always on the go.

The iGen4500DF is easy to operate, mainly because of its front panel and easy push button to start the generator. Besides, the remote can also start the generator from up to 100 yards distance, which makes it easy and convenient to start up.

There is also an LED data center to indicate whether the generator is operating under low oil, overload, and if its output is ready. The digital displays show the voltage, remaining fuel, total runtime in hours, and power in kilo-watts.

Pros
  • Very Quiet
  • Can be used in parallel with another generator
  • Easy to Transport
  • Can safely charge other devices
  • Loads of Safety protection Measures
Cons
  • Little bit Expensive

Pulsar PG5250B – 5,250 Watt Dual Fuel Portable Generator

Pulsar PG5250B - 5,250 Watt Dual Fuel Portable Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 5250 Watt / Running: 4250 Watt
Starting: 4750 Watt / Running: 3850 Watt
Noise Level78db (From 23 Feet)
Operating Time12 hours / 50% Load (Gasoline)
Fuel Tank Size4 Gallon
Starting MethodRecoil Pull Start, Electric
Weight120lbs

This generator is very portable and has the power to perform in different types of situations. It’s perfect for many job sites, outdoor activities, and even home use. You can easily switch to propane or gasoline, whichever is affordable and accessible.

The Pulsar PG5250B is one of the best dual fuel generators out there today. It can also be one of the best gasoline generators and propane generators today.

You can switch to either of the two with ease and convenience, with just a simple switch flip. It has a Switch & Go technology, which lets you safely switch between gasoline and propane, even when the generator is still running. A propane hose is also included to give you more convenience in terms of use.

Pros
  • Ready for RV use
  • Switch & Go Technology
  • Fuel-Efficient
  • Great run Time
  • Great Weight and Portability
  • Automatic Voltage Regulation
  • Fuel Gauge
  • Spark Arrestor
Cons
  • No Electric Start

Champion 7500 Watt Dual Fuel Portable Generator

Champion 7500-Watt Portable Dual Fuel Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 9375 Watt / Running: 7500 Watt
Starting: 8400 Watt / Running: 6750 Watt
Noise Level74db (From 23 Feet)
Operating Time8 hours / 50% Load (Gasoline)
5.5 hours / 50% Load(Propane)
Fuel Tank Size6 Gallon
Starting MethodRecoil Pull Start, Electric
Weight200.6lbs

This dual generator stands for convenience and versatility. You won’t have a hard time operating this dual generator, anytime and anywhere.

The Champion 7500-Watt Portable Generator already comes with oil, so you can take it out of the box immediately after purchase and use it. It can run on either gasoline or propane, which is why it’s handy equipment to have around and use primarily for emergencies.

This equipment is relatively heavy compared to others. Luckily, it comes with a wheel kit that has sturdy tires, so you can wheel it around without minding its weight.

Pros
  • Automatically turns-off if it has low oil
  • Reliable monitor which tracks power output and maintenance needs
  • Excellent customer service and warranty
  • Made of tough and sturdy materials to withstand any elements
  • Surge guard protector
Cons
  • It tends to be loud, which can be annoying to most people

Firman H08051 – 8000 Watt Dual Fuel CARB Generator

Firman H08051 - 8000 watt Dual Fuel CARB Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 10000 Watt / Running: 8000 Watt
Starting: 9050 Watt / Running: 7250 Watt
Noise Level74dB (From 23 Feet)
Operating Time12 hours / 50% Load (Gasoline)
Fuel Tank Size8 Gallon
Starting MethodRecoil Pull Start, Electric
Weight212lbs

The Firman Generator can give you power on demand, and it offers long-lasting power and exceptional performance. This equipment is especially popular for work-site use and emergencies. Nevertheless, it’s the perfect equipment to have at home.

Consider the H08051 as a powerhouse, with a 10,000 watt power capability. It’s larger than most dual fuel generators, but it’s acceptable considering the amount of power its cable of producing. It gets its power from the Max-Prop Series Fireman engine. You can expect up to 12 hours of running time at 50% load with an 8-gallon fuel tank.

Moreover, it can run on either gasoline and propane, which gives you enough flexibility and reliability in terms of use. It comes with a 5.5 feet propane hose, and a 10-inch wheel-kit to make it easy to bring around, regardless of the terrain.

Pros
  • Power whenever you need it
  • Runs for a long time
  • Electric Start
  • Easy to Use Propane Hose
  • High Power with Low maintenance
Cons
  • Not as quiet as most dual fuel generator

All Power America Generator APGG10000GL 8000 Watt Generator

All Power America Generator APGG10000GL 8000 Watt Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 10000 Watt / Running: 8000 Watt
Starting: 8500 Watt / Running: 7000 Watt
Noise Level76db (From 23 Feet)
Operating Time11 hours / 50% Load (Gasoline)
Fuel Tank Size8 Gallon
Starting MethodRecoil Pull Start, Electric
Weight235lbs

This mighty dual fuel generator sports a 10000 Watt portable generator. It’s very lightweight, which makes it portable and convenient to have around.

You can run this generator on either propane or gasoline and even both at the same time. By running both fuels at the same time, you can expect the generator to perform longer and in good condition.

Moreover, you can easily use this generator with a conveniently located on its body to switch between fuels or restart the generator. The body of the generator is made with anti-corrosive materials to extend its useful life and extend its reliability and functionality.

Pros
  • EPA Certified
  • Has multiple outlets
  • Noise (76dB) less then a blow dryer
  • 8 gallons of fuel capacity
  • Electric Start Button and Recoil Start
Cons
  • Not CARB Compliant

WEN DF1100T 11000 Watt Dual Fuel Generator – Both Gas & Propane

Generac 5939 GP5500 5500 Gas Powered Portable Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 11000 Watt / Running: 8300 Watt
Starting: 9500 Watt / Running: 7500 Watt
Noise LevelNot Tested
Operating Time8.5 hours / 50% Load (Gasoline)
3 hours / 50% Load (Propane)
Fuel Tank Size6.6 Gallon
Starting MethodRecoil Pull Start, Electric
Weight213.8lbs

This is a powerful, portable, and reliable generator people want to have at home or for their business. It’s an ideal choice for many people operating food vans, sports competitions, open-air performances, and even festivals.

This equipment is very versatile and powerful, providing an output of 120/240V. When it’s running on gasoline, it has a running wattage of 8300W and 7500Watts when it is running on propane.

The DF1100T has a control panel that includes a meter to show power frequency, lifetime hours, and voltage. This is a handy feature, especially if you want to monitor your activity, status, and use.

Pros
  • Comes with several accessories
  • Quiet operations
  • Affordable for its specifications
  • Portable
  • Automatic Voltage Regulation
  • Fuel Gauge
  • Spark Arrestor
Cons
  • Quite heavy

Westinghouse WGen9500DF Dual Fuel Portable Generator

Westinghouse WGen9500DF Dual Fuel Portable Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 12500 Watt / Running: 9500 Watt
Starting: 11200 Watt / Running: 8500 Watt
Noise Level74dB (23 Feet)
Operating Time12 hours / 50% Load (Gasoline)
7 hours / 50% Load (Propane)
Fuel Tank Size6.6 Gallon
Starting MethodRecoil, Electric, Remote
Weight220lbs

The Westinghouse generators are one of the most powerful dual fuel generators out there. This generator can run up to 12 hours with gasoline at a 50% load. It can supply you with the energy that you need without experiencing any problem.

This equipment provides 9,500 running watts and 12,500 starting watts on gasoline, and 8,500 running watts and 11,200 starting watts on propane. Its body is constructed using a durable cast iron sleeve to help extend its engine life, making it tough and sturdy equipment to have around.

Moreover, this equipment was designed to make sure its operations go smoothly, and that it is fuel-efficient. Most importantly, its low oil shutdown helps prevent the engine from getting damaged.

Pros
  • Comes with various accessories
  • Remote Start
  • High Run Time
  • Fuel-Efficient
  • Acceptable Noise
  • Automatic Voltage Regulation
  • Fuel Gauge
  • Spark Arrestor
Cons
  • Average performance for its price

DuroMax XP13000EH – Portable Propane Or Gasoline Generator

DuroMax XP13000EH Portable Propane Or Gasoline  Generator
FeaturesValue
Gasoline Output
Propane Output
Starting: 13000 Watt / Running: 10500 Watt
Starting: 12350 Watt / Running: 9975 Watt
Noise Level74db (From 23 Feet)
Operating Time8.5 hours / 50% Load (Gasoline)
6.5 hours / 50% Load (Propane)
Fuel Tank Size8.3 Gallon
Starting MethodRecoil Pull Start, Electric
Weight260lbs

This incredible generator runs with 10500 watts and can surge up to 13000 watts. It’s the perfect generator to power essential household appliances while guaranteeing the safety of your home.

The power panel of this generator is equipped with several outlets, and each has individual breakers to make everything safe and that it does not overload. It’s also EPA and CARB approved, which make sure that you can use this generator in any state of the US and Canada.

This generator is equipped with a DuroMax 500cc OHV engine, which packs a lot of power to handle as many loads as possible without worrying over any electrical spikes and grounds.

Pros
  • Powered by DuroMax 20HP, 500cc OHV Engine
  • Power Boost Technology
  • Surge Arrest
  • Metal Construction
  • Extended Runtime
  • Push Button Start
  • Low Idle Control
Cons
  • May Sometimes Have Inconsistent Runtime

Features That Make a Good Dual Fuel Generator

There’s a ton of dual fuel generators to choose from, and selecting the best among them is not an easy task. You have to do your research on which generator suits your needs, regardless of whether you’re new to the idea of it or not.

Here are some tips or areas you have to consider when you’re choosing the best dual fuel generator in the market.

Budget

Generator Budget

Before you search for the best generator out there, you need to set a realistic budget for yourself and how much you are willing to spend. Your budget can help narrow down your choices and make a wise decision.

Some of the best dual fuel generators don’t have to be as expensive as you think, and there are a lot out there that offer the best feature at an affordable price range.

Noise Level

Generator Noise

Most generators are noisy, and some are not, and it usually differs based on the brand and its product features. You want a generator that can operate as silently as possible so it does not disrupt anyone around.

You should also note that noise levels are also affected by the number of power output on the generator and the load it carries. Usually, gasoline operated generators are louder than those working on propane. It can also depend on how far the generator is from your home, and the load it’s running on.

Outlets

Generator Outlet

One of the essential features of generators is the number of outlets it has to power various appliances and equipment. As much as possible, you want a generator that has many outlets so that you’ll always have a reserve outlet in case of an emergency.

However, you need to be mindful that these outlets have different volts suitable for different types of devices or appliances.

Power Demands

Generator Power

Your primary motivation for selecting a generator should always be, whether it’s able to meet your power demands or not. How much power are you plugging in, and is the generator capable of supplying it?

To determine how much power you need, the first step is always to identify how many appliances you plan on running simultaneously on your generator.

Make sure to note how much power consumption your devices are using, including its starting and running watts. Only then will you be able to know for sure how much watts your generator needs to have.

Portability and Size

Portable Generator

The size of your generator also plays an essential role in determining how much power it produces. More significant generators usually produce more energy than lower output generators, which are smaller in size.

Most importantly, you have to make sure that you have enough space in your home to fit the generator. Its size is also essential, especially if you want a portable generator that you can bring around for camping, tailgating, and other outdoor activities.

Start Type

Recoil Generator

Generators come with different start types, such as recoil or electric start. A manual way of opening a generator is to pull the cord, but this is not as convenient as electric starts. Electric starts are easier to turn on with just a switch of a button.

Most electric starts rely on batteries, which is why you always need to have a recoil start for back-up. Choosing the start type is a matter of convenience for most people.

Warranty

Warranty of Generator

Consider dual fuel generators as an investment, because it is a big purchase you’ll be using for a long time. You need to make sure it lasts for many years, and that the manufacturer offers extra protection against any defects or problems.

Make sure your dual fuel generator comes with a warranty, so that you can always raise any issue before them and that they can resolve it immediately.

Frequently Asked Questions

Q: How many watts do I need for my generator?

A: The number of watts you need depends on how many appliances, devices, or equipment you want to plug on it. To determine how much you’ll be needing, you have to make a list of appliances you’ll be running and how much watts it uses.

Q: What’s the best fuel for a generator?

A: After analyzing each type of fuel advantage and disadvantage. We can say, propane is usually better than other types of fuel because it’s cheaper and runs with little noise compared to gasoline. Moreover, propane has a longer shelf life, and it can be stored safely anywhere without gas.

Q: Is it cheaper to use propane than gas?

A: Propane runs on fewer watts than gas. Nevertheless, there’s a minimal difference in the cost of running a generator using propane versus gasoline.

Q: What happens if you overload a generator?

A: Generators may begin to overheat and eventually short circuit and have electronic spikes. This may lead to permanent damage to your generator and even appliances.

Q: How do I connect my generator to our house?

A: You can directly connect the generator to the transfer switch and then the main supply. As an alternative, you can also use an extension cord, especially if the generator is far from your home.

Final Words

Portable generators are always handy to have, especially when there’s an emergency. It’s also an excellent equipment to have around if you plan to work on or go to remote locations for camping. With the power of gasoline and propane combined, the two make one great dual fuel generator.

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