10 Best Portable Generators With Large Fuel Tanks for Extended Power Supply

Written by: Editor-in-Chief
Published on:

When it comes to ensuring a reliable power supply during outages or outdoor adventures, choosing the right portable generator is essential. You need something with a large fuel tank to keep the electricity flowing for extended periods. In this guide, you’ll discover the top 10 portable generators designed for extended power supply. Each option has unique features that might just meet your specific needs. Let’s explore what makes these generators stand out.

DuroMax XP13000EH Dual Fuel Portable Generator

If you’re looking for a reliable power source during storms or outages, the DuroMax XP13000EH Dual Fuel Portable Generator is an excellent choice. This 13,000-watt generator runs on both gas and propane, ensuring you have options when you need power most. Its heavy-duty, all-metal frame withstands harsh conditions, while user-friendly features like a push-button start make operation a breeze. With no-flat tires, it’s easy to transport across various terrains. Plus, its versatility allows you to use it for home backup, RV trips, or job sites, making the XP13000EH a smart investment for your power needs.

Best For: Those seeking a reliable and versatile power solution for home backup during outages, RV trips, or job sites.

Pros:

  • Dual fuel capability allows operation on both gas and propane for flexibility.
  • Heavy-duty all-metal construction ensures durability against harsh weather and wear.
  • User-friendly features like push-button start and a variety of outlets enhance ease of use.

Cons:

  • Weight and size may make it less portable for some users compared to smaller generators.
  • Potentially higher initial cost compared to single fuel generators.
  • Noise level may be higher than expected during operation, which could be a concern for some users.

Westinghouse 12500 Watt Dual Fuel Portable Generator

The Westinghouse 12500 Watt Dual Fuel Portable Generator is an outstanding choice for those who need reliable power during outages or outdoor activities. It offers 9500 running watts and 12500 peak watts on gasoline, while propane provides 8500 running watts and 11200 peak watts. With a robust 457cc engine, you’ll enjoy up to 12 hours of run time on its 6.6-gallon tank. Features like remote start, multiple outlet options, and safety covers make it user-friendly. Plus, it comes with essential accessories and a 3-year warranty, ensuring peace of mind for your power needs.

Best For: Those seeking a reliable and versatile power solution for home backup during outages or for outdoor events.

Pros:

  • Versatile Fuel Options: Can operate on both gasoline and propane, providing flexibility based on availability.
  • Long Run Time: Offers up to 12 hours of operation on a single tank, reducing the need for frequent refueling.
  • User-Friendly Features: Equipped with remote start and multiple outlet options, enhancing convenience and accessibility.

Cons:

  • Weight and Portability: At a substantial weight, it may be challenging to transport without assistance.
  • Noise Level: Generators of this size can be relatively loud, which may be disruptive in certain settings.
  • Initial Cost: The upfront investment may be higher compared to smaller, less powerful generators.

2450-Watt Portable Inverter Generator for Home Use

For those seeking reliable backup power at home or on the go, the 2450-Watt Portable Inverter Generator stands out with its impressive performance and quiet operation. With a starting power of 2450W, it’s perfect for various appliances, whether you’re camping or need emergency power. Operating at just 59 decibels, it guarantees a peaceful environment. The 6L fuel tank allows for up to 14 hours of run time at 25% load, enhancing efficiency. Weighing only 43 pounds, its lightweight design makes it easy to transport. Remember to drain the oil for longevity when not in use, making sure your generator stays in top shape.

Best For: Those in need of a portable, efficient power solution for camping, outdoor activities, or as a reliable backup for home use.

Pros:

  • Quiet operation at 59 decibels ensures a comfortable environment.
  • Long runtime of up to 14 hours at 25% load with a 6L fuel tank.
  • Lightweight at 43 pounds, making it easy to transport and store.

Cons:

  • Gas-powered, which may require frequent refueling compared to electric options.
  • Maintenance required, such as draining oil when not in use, to prolong lifespan.
  • Limited starting power of 2450W may not be sufficient for high-demand appliances.

WEN Dual Fuel Portable Generator (DF475T)

Looking for versatility in your power supply? The WEN Dual Fuel Portable Generator (DF475T) has you covered. With a powerful 224cc engine, it delivers 4,750 surge watts on gasoline and 4,350 on propane. You can easily switch between fuels using a simple selection dial. Its 4-gallon fuel tank provides up to 11 hours of runtime at half load, making it perfect for extended use. You’ll find multiple outlets for your devices, and the electric start feature makes operation a breeze. Plus, it comes with a 2-year warranty, ensuring you have peace of mind with your purchase.

Best For: Those seeking a reliable and versatile power solution for outdoor activities, emergencies, or job sites.

Pros:

  • Dual fuel capability allows for flexibility between gasoline and propane.
  • Long runtime of up to 11 hours at half load, ideal for extended use.
  • Electric start feature simplifies operation for users of all skill levels.

Cons:

  • Limited power output may not be sufficient for larger appliances or tools.
  • Heavier than some competitors, making it less portable for some users.
  • Maintenance and fuel switching may require additional attention and effort.

Westinghouse Dual Fuel Portable Generator

If you’re in search of a reliable power solution for your home or RV, the Westinghouse Dual Fuel Portable Generator stands out with its impressive versatility. With a peak output of 4650 watts on both gasoline and propane, it guarantees you have the power you need. The 4-gallon fuel tank allows for up to 14 hours of runtime on gasoline and 16.5 hours on propane, perfect for extended use. Featuring multiple outlets, safety features like automatic shutdown, and a 3-year warranty, this generator is designed for convenience and peace of mind, making it an excellent choice for any situation.

Best For: Individuals seeking a versatile and reliable power solution for home use or RV applications.

Pros:

  • Dual fuel capability allows for flexibility in fuel choice, using either gasoline or propane.
  • Impressive runtime of up to 14 hours on gasoline and 16.5 hours on propane ensures long-lasting power for extended use.
  • Safety features such as automatic low oil and carbon monoxide shutdown provide peace of mind during operation.

Cons:

  • Weighing 108 pounds, it may be difficult to transport for some users.
  • The generator’s noise level may be higher compared to some other portable models.
  • Limited peak wattage may not be sufficient for larger appliances beyond essentials.

JJing Universal 7 Gallon Generator Gas Fuel Tank

The JJing Universal 7 Gallon Generator Gas Fuel Tank stands out as an essential accessory for owners of Honda generators and several other brands. With a generous capacity of 7 gallons, it guarantees you won’t run out of fuel during critical moments. This tank fits various models, including Honda’s EC6500 and EM5500, as well as brands like Champion and Predator. Weighing just 11.8 pounds and featuring easy installation components like grommets and fuel lines, it’s designed for convenience. Just remember to check the dimensions before ordering to verify it fits your generator perfectly.

Best For: Owners of Honda generators and other compatible brands seeking a reliable and spacious fuel tank solution.

Pros:

  • Generous 7-gallon capacity ensures extended run times without frequent refueling.
  • Compatible with multiple generator brands, making it a versatile choice for various users.
  • Lightweight design and included installation components simplify setup and transportation.

Cons:

  • Does not include a vent valve, which may be necessary for some users.
  • Actual fuel capacity is slightly less than 7 gallons, which may be a concern for some.
  • Requires checking dimensions prior to ordering to avoid compatibility issues.

WEN 5,600-Watt Dual Fuel Portable Generator (DF5600X)

For those in need of versatile power solutions, the WEN 5,600-Watt Dual Fuel Portable Generator (DF5600X) stands out with its dual fuel capability, allowing you to choose between gasoline and propane. It delivers 5,600 surge watts and 4,500 rated watts on gasoline, or 5,000 surge watts and 4,050 rated watts on propane. With a 4.3-gallon gas tank, you can enjoy up to 12.5 hours of run time at half-load. Safety features like the WEN Watchdog CO Shutdown Sensor keep your family protected. Plus, its electric start and included wheel kit make it user-friendly and easy to transport.

Best For: Those seeking a reliable and versatile power source for outdoor activities, emergencies, or home backup needs.

Pros:

  • Dual fuel capability allows flexibility in fuel choice, catering to various situations.
  • Long run time of up to 12.5 hours at half-load ensures extended usage without frequent refueling.
  • Safety features, including the WEN Watchdog CO Shutdown Sensor, protect users from carbon monoxide exposure.

Cons:

  • Weight and size may be cumbersome for some users, making it less portable without the wheel kit.
  • Electric start may require battery maintenance, which can be an added responsibility.
  • Limited power output on propane compared to gasoline may restrict use for more demanding appliances.

WEN 3600-Watt Dual Fuel Portable Inverter Generator (DF360iX)

Looking for a versatile power solution that won’t disturb the peace? The WEN 3600-Watt Dual Fuel Portable Inverter Generator (DF360iX) is your answer. With its dual-fuel design, it delivers 3600 surge watts on gasoline and 3500 surge watts on propane, ensuring you have options. Its quiet operation is comparable to normal conversations, making it great for camping or tailgating. Plus, it produces clean power, protecting your sensitive electronics. Safety features like the WEN Watchdog CO Shutdown Sensor provide peace of mind. Connect easily with multiple outlets and enjoy a three-year warranty for added assurance.

Best For: Those seeking a quiet, reliable power source for outdoor activities like camping or tailgating, as well as for emergency backup at home.

Pros:

  • Dual-fuel capability allows for flexibility in fuel choice.
  • Extremely quiet operation is perfect for noise-sensitive environments.
  • Clean power output protects sensitive electronics from damage.

Cons:

  • Limited power output compared to larger generators.
  • Requires regular maintenance for optimal performance.
  • Heavier than some portable generators, making transport slightly more challenging.

Westinghouse Dual Fuel Portable Generator

Designed for versatility, the Westinghouse Dual Fuel Portable Generator is perfect for those who need reliable power on the go, whether for camping trips, tailgating, or emergency backup. With a powerful 212cc engine, it offers 4650 peak watts and 3600 rated watts on gasoline, or 3240 rated watts on propane. Its 4-gallon fuel tank provides up to 14 hours of run time, ensuring you won’t run out of power when you need it most. Plus, with multiple outlets and safety features like rubber covers and automatic low oil shutdown, you can trust this generator to keep you connected and safe.

Best For: Those seeking a reliable and versatile power source for camping, tailgating, and emergency backup situations.

Pros:

  • Dual Fuel Capability: Operates on both gasoline and propane, offering flexibility in fuel choice.
  • Long Run Time: Up to 14 hours of operation on a single tank, perfect for extended use.
  • Safety Features: Includes automatic low oil shutdown and rubber-covered outlets for added protection.

Cons:

  • Weight: May be heavier than other portable generators, making it less convenient to transport.
  • Noise Level: As with many generators, it may produce noticeable noise during operation.
  • Assembly Required: Some minimal assembly is needed, which could be a hassle for some users.

Universal 5 Gallon Gas Tank for Generator

When you need a reliable fuel source for your portable generator, the Universal 5 Gallon Gas Tank stands out as the perfect solution. Its durable high-density polyethylene construction guarantees it can handle rough conditions, offering long-lasting performance. The integrated venting system prevents spills and leaks, making refueling hassle-free. Plus, with an easy pouring mechanism featuring a thumb-operated flow control valve, you’ll enjoy precise fuel delivery every time. Its ergonomic design, complete with a sturdy handle and compact size, makes transporting and storing your fuel effortless. This tank is ideal for generators, lawn equipment, and other gasoline-powered tools.

Best For: Those seeking a durable and efficient fuel storage solution for their generators, lawn equipment, and gasoline-powered tools.

Pros:

  • Durable construction from high-density polyethylene ensures long-lasting performance and impact resistance.
  • Integrated venting system prevents spills and leaks, making refueling safe and hassle-free.
  • Easy pouring mechanism with a thumb-operated flow control valve allows for precise fuel delivery.

Cons:

  • Limited capacity of 5 gallons may not suffice for larger generators or extended usage.
  • Plastic material may be less environmentally friendly compared to metal options.
  • Requires careful handling to avoid damage from rough use despite its durable design.

Factors to Consider When Choosing a Portable Generator With a Large Fuel Tank

When you’re choosing a portable generator with a large fuel tank, think about how fuel capacity affects runtime efficiency. You’ll also want to take into account the generator’s weight and portability features, as these can impact how easy it is to transport. Finally, don’t forget to factor in maintenance requirements to keep your generator running smoothly.

Fuel Capacity Importance

Choosing a portable generator with a large fuel tank can greatly enhance your experience during power outages or outdoor adventures. A larger fuel tank means you can run your generator for extended periods, often up to 12 hours or more at half load. This extended runtime is vital when you’re in an area with limited access to fuel. Plus, larger tanks improve fuel efficiency, reducing the frequency of refueling stops. If you need to power multiple appliances or meet higher power demands, a larger capacity guarantees you won’t run out of power quickly. Ultimately, opting for a generator with a significant fuel tank can save you money over time by cutting down on fuel purchases and interruptions.

Runtime Efficiency

Understanding runtime efficiency is essential for maximizing the benefits of a portable generator with a large fuel tank. A generator’s fuel tank capacity greatly impacts how long it can run before needing refueling. For instance, a 4-gallon tank can provide up to 14 hours of power, depending on the load. To enhance fuel efficiency, consider models that offer dual fuel options, allowing you to switch between gasoline and propane based on availability. Operating your generator at around 50% load typically yields the best runtime efficiency, so know the wattage needs of your devices. Finally, regular maintenance, like checking oil levels and ensuring proper ventilation, can greatly boost your generator’s runtime efficiency and lifespan.

Generator Weight Considerations

Runtime efficiency isn’t the only factor to contemplate; the weight of a portable generator plays a significant role in its overall usability. Lighter models, around 43 pounds, are easier to transport and store compared to heavier ones exceeding 100 pounds. While these heavier generators often boast larger fuel tanks for longer runtimes, they can be cumbersome to move and set up. You should also consider how weight distribution affects stability; heavier models may provide a stable base but can tip over if not positioned correctly. Think about your intended use—if you’re planning outdoor activities or need quick mobility during emergencies, a lighter generator might be more practical. Finally, verify your transport equipment can handle the generator’s weight safely.

Portability Features

When evaluating a portable generator with a large fuel tank, portability features are essential for ensuring ease of use and mobility. A lightweight design enhances transportability, allowing you to move the generator without strain. Look for integrated wheels and handles that make it easy to maneuver across various terrains, especially during outdoor activities or emergencies. A no-flat tire design can save you from punctures and maintenance issues, keeping your generator functional when you need it most. Additionally, compact dimensions help with storage and transportation, fitting snugly in smaller spaces or vehicles. Finally, durable construction materials, like high-density polyethylene, protect your generator from impacts and rough handling during transport.

Maintenance Requirements

Choosing a portable generator with a large fuel tank means you must also consider its maintenance requirements to guarantee reliable performance. Regularly check and change the oil, especially after prolonged use or every 50 hours, to prevent engine wear. Clean or replace air filters every 25 hours to maintain airflow and fuel efficiency. Inspect fuel lines for leaks or damage, as neglecting this can cause safety hazards. Follow the manufacturer’s guidelines for winterization or long-term storage, which may involve draining fuel or adding a fuel stabilizer. Finally, schedule routine maintenance checks, including spark plug inspections and battery care for electric start models, to prolong your generator’s lifespan and ensure it remains dependable when you need it most.

Power Output Ratings

Power output ratings are essential to understanding how well a portable generator can meet your energy needs. You’ll want to look at both running watts, which represent continuous power, and surge watts, the peak power needed for appliances during startup. It’s vital to calculate the total wattage of all devices you intend to connect, ensuring the generator can handle the load without overloading. Keep in mind that output ratings can differ based on fuel type, with generators offering varying capacities when using gasoline versus propane. By grasping these power output ratings, you can choose a generator that aligns with your immediate and future energy requirements, providing reliable power during outages or while camping.

Safety Features Availability

Understanding power output ratings is just the start; safety features are equally important in selecting the right portable generator, especially one with a large fuel tank. Look for models that have automatic low oil shutdown, which protects the engine by turning off the generator when oil levels get too low. Carbon monoxide (CO) shutdown sensors are essential, automatically shutting off the unit if CO levels become dangerous. Overload protection is another vital feature, preventing the generator from exceeding its power capacity and risking fires or equipment damage. Additionally, rubber outlet covers safeguard against dust and moisture, while proper venting systems in fuel tanks prevent spills and leaks, ensuring safe fuel handling and reducing environmental hazards.