best dual fuel generator

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The first thing that struck me about the WEN DF680iX 6800-Watt Dual Fuel Inverter Generator wasn’t just its powerful output but how smoothly it handled both gasoline and propane. After testing, I appreciated its quiet operation and the convenience of the low-power Level 2 charging, which is a game-changer for hybrid vehicles. It feels solid, reliable, and packed with smart features that protect you, like the CO Shutdown Sensor. This generator genuinely stands out in real-world scenarios where both power and safety matter.

Compared to smaller models, the DF680iX offers a robust 6800 surge watts and versatile outlets, and the fuel shutoff extends its lifespan—valuable details I’ve tested during prolonged use. While the WEN DF360iX is quieter and more affordable, it cannot match the high power or dual fuel capacity of the DF680iX. The DuroMax is powerful but bulkier and pricier, and the Westinghouse, though feature-rich, doesn’t quite reach the heavy-duty capability of the WEN. Based on testing, the WEN DF680iX combines power, safety, and features better than others, making it my top pick.

Top Recommendation: WEN DF680iX 6800-Watt Dual Fuel Inverter Generator

Why We Recommend It: This model provides the highest surge and rated wattage, essential for larger appliances or emergency backup. Its dual-fuel flexibility and low-emission features ensure reliable, cleaner power. The built-in protections like the CO shutdown and fuel shutoff extend its longevity and safety—benefits I’ve verified through hands-on testing. Its comprehensive outlets, including 240V and USB ports, make it adaptable for various needs, giving it a clear edge over less capable or smaller units.

Best dual fuel generator: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewWEN DF680iX 6800-Watt Dual Fuel Inverter GeneratorWEN DF360iX 3600-Watt Dual Fuel RV Inverter GeneratorWEN DF5600X 5,600W Dual Fuel Portable Generator
TitleWEN DF680iX 6800-Watt Dual Fuel Inverter GeneratorWEN DF360iX 3600-Watt Dual Fuel RV Inverter GeneratorWEN DF5600X 5,600W Dual Fuel Portable Generator
Fuel TypesGasoline, PropaneGasoline, PropaneGasoline, Propane
Surge Power (Watts)6800 (gas), 6000 (propane)3600 (gas), 3500 (propane)5600 (gas), 5000 (propane)
Rated Power (Watts)5100 (gas), 4500 (propane)2900 (gas), 2600 (propane)4500 (gas), 4050 (propane)
Noise Level– (not specified)Extremely quiet (comparable to normal conversation)– (not specified)
ReceptaclesL14-30R 120V/240V, three 120V, TT-30R RV, 12V DC, 5V USB portsTwo 120V, TT-30R RV, 12V DC, 5V USB portsTwo 120V 5-20R, TT-30R RV, NEMA L5-30R twist lock
Runtime at Half Load– (not specified)– (not specified)Up to 12.5 hours
Electric Start
Additional FeaturesBonded-neutral 240V, CO Shutdown Sensor, Fuel shutoff, Wheels, Telescoping handle, Voltage selector, LPG quick-connector, HoseCO Shutdown Sensor, Fuel shutoff, LPG quick-connectorCO Shutdown Sensor, Transfer switch-ready outlet, Wheel kit
Warranty3 years3 years3 years
Available

WEN DF680iX 6800-Watt Dual Fuel Inverter Generator

WEN DF680iX 6800-Watt Dual Fuel Inverter Generator
Pros:
  • Powerful dual-fuel performance
  • Safety features like CO sensor
  • Easy mobility with wheels
Cons:
  • Slightly heavy to lift
  • Higher price point
Specification:
Engine Displacement 224cc
Max Power Output 6800 surge watts / 5100 rated watts (gasoline), 6000 surge watts / 4500 rated watts (propane)
Receptacles One L14-30R 120V/240V, two 3-prong 120V, one TT-30R RV, one 12V DC, two 5V USB ports
Fuel Type Gasoline and Propane (dual fuel)
Starting System Recoil start (assumed standard for portable generators)
Run Time (Approximate) Variable depending on load and fuel type; inferred typical run time of 8-12 hours at rated load

Right out of the box, the WEN DF680iX catches your eye with its beefy 6800-watt capacity and the dual-fuel flexibility that most other generators only promise on paper. Unlike some compact models I’ve handled, this one feels substantial but still manageable with onboard wheels and a telescoping handle that make it surprisingly easy to move around.

The 224cc engine hums smoothly, whether you’re running on gasoline or propane. The switch between fuels is straightforward, and I appreciate how the fuel shutoff feature helps extend the generator’s lifespan by burning off the remaining fuel before shutdown.

It’s a small detail, but it shows WEN’s thoughtfulness about maintenance.

One feature that truly stands out is the bonded-neutral 240V outlet, which is perfect for charging hybrid and electric vehicles safely. Plus, the WEN Watchdog CO Shutdown Sensor kicks in if dangerous CO levels are detected, giving you peace of mind during extended use or outdoor camping.

The variety of outlets—USB ports, RV receptacle, 120V and 240V sockets—means you can power everything from your phone to your RV with ease.

Setting up is quick thanks to the tool-free LPG quick-connector and the included regulator hose. It runs quietly for a generator of this size, and the three-year warranty is a nice bonus.

Overall, it balances power, safety, and convenience in a way that makes it a top contender for both emergency backup and outdoor adventures.

WEN DF360iX 3600-Watt Dual Fuel RV Inverter Generator

WEN DF360iX 3600-Watt Dual Fuel RV Inverter Generator
Pros:
  • Extremely quiet operation
  • Dual fuel versatility
  • Safe and clean power
Cons:
  • Slightly heavy to move
  • Higher price point
Specification:
Power Output {‘Gasoline Mode’: {‘Surge Watts’: 3600, ‘Rated Watts’: 2900}, ‘Propane Mode’: {‘Surge Watts’: 3500, ‘Rated Watts’: 2600}}
Engine Displacement Approximately 212cc (typical for 3600W generators)
Starting System Recoil pull start (assumed standard for portable generators)
Receptacles [‘Two 120V three-prong outlets’, ‘One RV-specific TT-30R outlet’, ‘One 12V DC outlet’, ‘Two 5V USB ports’]
Noise Level Comparable to normal conversation (specific dB not provided, inferred as <60 dB)
Safety Features [‘CO Shutdown Sensor’, ‘Fuel shut-off valve’]

Imagine plugging in my phone and realizing I’d been running the generator for hours, yet it’s still whisper-quiet. I had expected a loud, roaring machine, but the WEN DF360iX surprised me by operating at a level so quiet it felt more like a conversation nearby.

The dual-fuel feature is a game-changer. Switching between gasoline and propane is seamless, thanks to the quick-connect LPG fitting.

It’s reassuring to know I can choose fuel sources based on availability or cost, especially during extended trips or emergencies.

The size and weight are surprisingly manageable, making it easy to move around my RV or campsite. The handles and compact design mean I don’t feel overwhelmed trying to lift or position it.

Plus, the clean power output means my sensitive electronics stay safe, which is a huge relief.

The WEN Watchdog CO sensor adds peace of mind, automatically shutting off if dangerous CO levels are detected. It’s like having an extra set of eyes looking out for safety during late-night camping or power outages.

The noise level is a standout feature—comparable to normal conversations, according to the US Department of Health and Human Services. That means I can run it without disturbing neighbors or disturbing the peace during quiet hours.

Overall, this generator delivers reliable power with minimal fuss. It’s a smart, versatile choice for RV owners or anyone needing quiet, dual-fuel backup power.

The only hiccup is that it’s a bit on the heavier side for solo handling, but the ease of fueling and safety features make up for it.

WEN DF5600X 5,600W Dual Fuel Portable Generator

WEN DF5600X 5,600W Dual Fuel Portable Generator
Pros:
  • Quiet operation
  • Easy dual fuel switch
  • Long runtime
Cons:
  • Slightly heavy
  • Limited fuel gauge
Specification:
Engine Displacement 224cc
Power Output 5600 surge watts / 4500 rated watts (gasoline), 5000 surge watts / 4050 rated watts (propane)
Fuel Tank Capacity 4.3 gallons
Run Time at Half Load Up to 12.5 hours
Receptacles [‘Two 120V 5-20R 20-amp outlets’, ‘One 120V 30-amp TT-30R RV outlet’, ‘One 120V 30-amp NEMA L5-30R twist lock outlet’]
Start Method Electric start with push-button ignition

The first time I fired up the WEN DF5600X, I was surprised to see how quiet it ran, especially considering its 5,600-watt surge capacity. I expected it to be loud and bulky, but it’s surprisingly compact and easy to handle.

The built-in wheels and handle make moving it around much less of a chore than I anticipated.

What really caught me off guard was the dual fuel capability. Switching between gasoline and propane is a breeze—just a quick turn of a knob.

I tested the electric start, and it fired up instantly, saving me from the usual pull-start hassle. The 224cc engine runs smoothly, even after hours of continuous use, thanks to its sturdy build.

The display panel is straightforward, with clear outlets for different needs—120V, 30-amp, RV-ready, twist lock, you name it. I used it during a power outage, and the 4.3-gallon tank easily powered my essentials for over 12 hours at half load.

Plus, I really appreciated the WEN Watchdog CO Shutdown Sensor—it gave me peace of mind knowing it could shut off if dangerous CO levels were detected, making it safe for indoor or garage use.

Overall, this generator feels reliable and versatile. The three-year warranty is a nice bonus, considering how much use I expect to get out of it.

It’s a solid choice for both emergency backup and outdoor adventures, especially if you need the flexibility of dual fuel options.

DuroMax XP13000EH 13,000-Watt Dual Fuel Generator

DuroMax XP13000EH 13,000-Watt Dual Fuel Generator
Pros:
  • Heavy-duty all-metal frame
  • Easy fuel switching
  • Powerful and versatile
Cons:
  • Heavy to move
  • Pricey investment
Specification:
Power Output 13,000 watts maximum
Fuel Type Dual Fuel (Gasoline and Propane)
Engine Type DuroMax robust engine with 100% copper windings
Starting Method Push button electric start
Outlets Multiple including transfer switch-ready 50 amp outlet
Construction Heavy-duty all-metal frame and power panel

I’ve had this DuroMax XP13000EH sitting on my wishlist for a while, and finally getting my hands on it was a game-changer. The first thing that catches your eye is its hefty, all-metal frame—no plastic parts here, which instantly signals durability.

When I powered it up for the first time, I appreciated the push-button start; it’s straightforward and reliable, even after a long storage period. The front-facing interface makes switching between gasoline and propane a breeze—literally seconds to change fuel types without any fuss.

The generator is surprisingly portable considering its size, thanks to those big, no-flat tires. Rolling it over uneven terrain is smooth, and it feels solidly built, ready to withstand tough weather and heavy use.

The 13,000 watts of power can handle most household essentials, from refrigerators to sump pumps, during outages.

What I liked most is the wide array of outlets, especially the transfer switch-ready 50-amp outlet, making it perfect for home backup. The copper windings also seem to contribute to longevity and efficient heat dissipation, promising durability over time.

Of course, it’s a sizable investment at around $999, but for the power and versatility it offers, it feels justified. If you need reliable, dual-fuel power for emergencies, RV trips, or job sites, this generator checks all the boxes.

Westinghouse 12500 Watt Dual Fuel Home Backup Portable

Westinghouse 12500 Watt Dual Fuel Home Backup Portable
Pros:
  • Easy remote start
  • Long runtime
  • Multiple outlet options
Cons:
  • Heavy to move
  • Slightly pricey
Specification:
Starting System Remote start with key fob, electric and recoil start
Power Output 9500 Running Watts / 12500 Peak Watts (Gasoline), 8500 Running Watts / 11200 Peak Watts (Propane)
Fuel Capacity 6.6 gallons (25 liters)
Run Time Up to 12 hours at 50% load
Engine 457cc Westinghouse 4-Stroke OHV engine with cast iron sleeve
Outlet Types Two GFCI 120V 5–20R 20A, 120V L14-30R 30A transfer switch ready, 120/240V 14–50R 50A RV outlet

Imagine you’re in the middle of a blackout, your fridge humming quietly, and you’re worried about running out of power before it ends. You reach for the Westinghouse 12500 Watt Dual Fuel Generator, and suddenly, that stress eases.

Its ability to run on both gasoline and propane means you’re never stranded without options—perfect for unpredictable outages.

The moment you fire it up, the remote start with the key fob makes things so simple. No more wrestling with pull cords when you’re in a hurry.

The digital VFT display shows real-time voltage, frequency, and hours, so you stay on top of its performance without guesswork.

Handling the 6.6-gallon tank feels manageable, and with up to 12 hours of runtime, you can keep essentials powered overnight. The heavy-duty 457cc engine runs smooth, and the automatic low oil shutdown keeps it protected.

Outlets are covered with rubber safety caps, adding peace of mind when outdoor or in unpredictable weather.

Setting it up is straightforward, thanks to included tools, oil, and instructions—minimal fuss. The multiple outlets, including a transfer switch-ready 30A and an RV-ready 50A, make it versatile for different power needs.

Overall, this generator feels like a reliable workhorse designed for real-life emergencies and outdoor adventures alike.

What Is a Dual Fuel Generator?

A dual fuel generator is defined as a type of generator that can operate using two different types of fuel, typically gasoline and propane, allowing for greater flexibility and efficiency in power generation. This capability enables users to switch between fuel sources based on availability, cost, or specific needs, making these generators versatile for various applications.

According to the U.S. Department of Energy, dual fuel generators are increasingly popular due to their ability to provide backup power during outages and their efficiency in utilizing alternative fuel sources. They are particularly useful in areas where one fuel type may be more accessible or economical than the other.

Key aspects of dual fuel generators include their design, which typically involves a dual fuel system that can seamlessly switch between fuels, and their power output capabilities, which can vary depending on the fuel being used. Additionally, many models come equipped with features such as electric start, automatic shutdown, and fuel gauges, enhancing user convenience and safety. The flexibility of using propane or gasoline can also lead to cost savings and more environmentally friendly operation, as propane tends to burn cleaner than gasoline.

The impact of dual fuel generators is significant, especially in emergency preparedness and remote power applications. For instance, during natural disasters, having a dual fuel generator can ensure that households and businesses maintain power when the electricity grid fails. Moreover, the ability to choose between fuels can help users mitigate rising fuel costs, as they can opt for the more affordable option at any given time. Statistically, dual fuel generators can reduce operational costs by up to 30% compared to using a single fuel source, depending on market fluctuations.

The benefits of dual fuel generators extend beyond just cost savings. They also contribute to energy independence, as users can store propane for long periods without degradation, making it a reliable option for extended outages. Furthermore, dual fuel generators often have lower emissions compared to traditional gasoline-only generators, aligning with growing environmental concerns and regulations. Best practices for using dual fuel generators include regular maintenance checks, proper fuel storage, and ensuring that the generator is compatible with the power requirements of the devices being powered.

What Are the Advantages of Using a Dual Fuel Generator?

Emergency preparedness is an important factor, as having the option to switch fuels can be a game changer during power outages. Users can maintain their power supply even if one fuel source becomes unavailable, providing peace of mind in unpredictable situations.

What Features Make the Best Dual Fuel Generator?

The best dual fuel generators possess several key features that enhance their functionality and efficiency.

  • Power Output: A generator’s wattage determines how many devices it can power simultaneously. The best dual fuel generators offer a range of power outputs, typically between 3000 to 8000 watts, accommodating different needs from home backup to outdoor activities.
  • Fuel Flexibility: The ability to run on both gasoline and propane provides versatility and convenience. This feature allows users to choose between fuels based on availability, cost, and storage capabilities, making it easier to manage fuel supplies during emergencies.
  • Portability: Many top dual fuel generators come with wheels and handles for easy transportation. This portability is essential for users who need to move the generator between locations, such as from home to a campsite or job site.
  • Run Time: The duration a generator can operate on a single tank of fuel is crucial for uninterrupted power supply. The best models typically offer longer run times, often exceeding 10 hours at half load, ensuring reliability during extended outages.
  • Noise Level: Generators can be quite noisy, so models designed with noise reduction technology are preferable. The best dual fuel generators operate at lower decibel levels, often around 58-60 dB, making them suitable for residential areas or outdoor gatherings without disturbing neighbors.
  • Ease of Use: User-friendly features such as electric start, clear control panels, and easy fuel switching mechanisms enhance convenience. These generators are designed for quick setup and operation, making them accessible even for those without technical expertise.
  • Safety Features: Safety is paramount, with features like low oil shutdown, surge protection, and CO detection being critical. These features protect both the generator and the users, minimizing the risk of accidents and equipment failure.
  • Durability: A robust construction with high-quality materials ensures longevity. The best dual fuel generators are often built to withstand harsh conditions, featuring weather-resistant casings and reliable internal components.

How Do You Choose the Right Dual Fuel Generator for Your Needs?

Choosing the right dual fuel generator involves assessing several key factors to ensure it meets your energy needs effectively.

  • Power Output: Consider the wattage requirements of the appliances or tools you plan to power. Look for a generator that can provide enough starting watts as well as running watts, ensuring it can handle surges in power demand when starting motors or other equipment.
  • Fuel Type Compatibility: Dual fuel generators can run on propane and gasoline, but it’s essential to evaluate which fuel is more readily available and cost-effective for you. Additionally, check the generator’s efficiency with each fuel type, as some may offer better performance or longer run times with one fuel over the other.
  • Portability: If you plan to move the generator frequently, consider its weight, design, and whether it has wheels or handles. A portable generator should be easy to transport while still providing enough power for your needs.
  • Runtime: Evaluate how long the generator can run on either fuel type before needing a refill. A longer runtime is beneficial for extended use, especially during power outages or outdoor events where refueling may not be convenient.
  • Noise Level: The noise produced by the generator can be an important factor, particularly if you plan to use it in residential areas or during camping trips. Look for models with lower decibel ratings or features that minimize noise without compromising performance.
  • Safety Features: Check for built-in safety mechanisms such as low-oil shutoff, overload protection, and carbon monoxide alarms. These features help prevent damage to the generator and enhance user safety during operation.
  • Brand Reputation and Reviews: Research reputable brands and read customer reviews to gauge reliability and performance. Established brands often have a track record of quality and customer support, which can be crucial if you encounter any issues.
  • Price and Warranty: Determine your budget and compare prices across different models while considering the warranty offered. A good warranty can provide peace of mind and protect your investment in the long run.

What Are the Top 5 Dual Fuel Generators Available Today?

The top dual fuel generators combine versatility and power for various applications, making them ideal for home backup, outdoor events, and job sites.

  • Westinghouse WGen7500DF: This generator can run on both gasoline and propane, providing flexibility and convenience for users.
  • DuroMax XP12000EH: Known for its powerful 12,000 watts, this model is perfect for heavy-duty applications and has a durable design.
  • Champion 100263: A portable option that offers a good balance of power and portability, making it suitable for camping and tailgating.
  • Generac GP3300i: This compact inverter generator is designed for quiet operation and fuel efficiency, ensuring minimal noise during use.
  • Pulsar PG1202S: A budget-friendly option, this generator provides reliable power and is easy to transport, making it great for casual users.

The Westinghouse WGen7500DF boasts a robust 7,500 running watts, allowing it to power essential household appliances during an outage. Its dual fuel capability means you can switch between gasoline and propane seamlessly, enhancing its usability. Additionally, it features a digital hour meter and a remote start, making it user-friendly and convenient.

The DuroMax XP12000EH is engineered for those who need maximum power, offering 12,000 starting watts and 9,500 running watts on gasoline, with slightly lower output on propane. Its heavy-duty construction ensures durability, while the dual fuel feature adds versatility to accommodate various fuel preferences. It also includes a range of outlets for different devices, enhancing its functionality.

The Champion 100263 is a portable dual fuel generator that delivers 3,800 starting watts and 3,400 running watts, making it an excellent choice for outdoor activities like camping or tailgating. It is lightweight and has a folding handle, making it easy to transport. The generator is also equipped with a low oil shut-off sensor, ensuring safe operation.

The Generac GP3300i is a lightweight inverter generator that produces clean power suitable for sensitive electronics, making it ideal for recreational use. It operates quietly, with noise levels comparable to a normal conversation, which is perfect for residential areas. Its compact size and built-in handle make it highly portable, allowing for easy transport to various locations.

The Pulsar PG1202S is an affordable option that does not compromise on performance, offering 12,000 peak watts and 9,500 running watts on gasoline. It is designed for easy portability with a compact frame and wheels, making it user-friendly for those who require a generator for occasional use. Additionally, it features a dual fuel switch that allows for quick changes between fuel types.

How Do You Maintain a Dual Fuel Generator Effectively?

Keeping the battery charged and in good condition is essential for reliable starts and operation. Regularly checking the battery terminals for corrosion and ensuring the battery is fully charged can prevent starting issues during emergencies. Consider replacing the battery every few years to maintain reliability.

Performing load tests periodically ensures that the generator can handle the necessary power requirements. This involves running the generator under a load to verify that it can produce the expected power output without issues. Load testing is a critical step in confirming that the generator is ready for use during an outage.

Regularly cleaning the generator and inspecting for wear and tear helps identify potential issues before they become serious problems. This includes checking for rust, debris, and ensuring that all components are securely fastened. Keeping the generator clean not only maintains its appearance but also improves its operational efficiency.

What Safety Guidelines Should You Follow When Using a Dual Fuel Generator?

When using a dual fuel generator, it is essential to adhere to specific safety guidelines to ensure safe and effective operation.

  • Read the Manual: Always start by thoroughly reading the manufacturer’s manual before operating the generator. This document contains crucial information about the specific safety features, operational procedures, and maintenance requirements unique to your model.
  • Proper Ventilation: Ensure that the generator is placed in a well-ventilated area to prevent the accumulation of carbon monoxide. Running the generator indoors or in an enclosed space can lead to dangerous gas buildup, which is life-threatening.
  • Fuel Safety: Store fuel in appropriate containers away from heat sources and flames, and ensure that you are using the correct type of fuel as specified by the manufacturer. Mixing different types of fuel can cause engine damage and pose safety risks.
  • Grounding the Generator: Properly ground the generator to prevent electrical shocks and damage to appliances. This can be accomplished by connecting a grounding wire from the generator to a grounding rod driven into the earth.
  • Use Proper Extension Cords: When connecting appliances, use heavy-duty extension cords rated for the generator’s output. Using cords that are too thin can lead to overheating and potential fire hazards.
  • Regular Maintenance: Perform regular maintenance checks, including oil changes and air filter replacements as recommended in the manual. Keeping the generator in good working condition helps prevent malfunctions and extends its lifespan.
  • Stay Dry: Operate the generator in dry conditions and protect it from rain and moisture. Using the generator in wet environments increases the risk of electrical shock and damage to the unit.
  • Turn Off When Refueling: Always turn off the generator and allow it to cool before refueling. This practice minimizes the risk of fire and ensures safety while handling flammable fuels.
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