Best 4000 Watt Generators – Buyer’s Guide & Reviews

A 4000 watt generator can be a valuable investment for homeowners and outdoor enthusiasts alike, providing a reliable source of power in the event of an outage or when camping or tailgating.

This buyer’s guide and review aims to help make the decision easier by highlighting the important factors to consider when buying a best 4000 watt generator and providing reviews of the top 10 best generators on the market.

Quick Summary

• Best for Overall Quality and Reliability–Honda EU3000iS
  The Honda EU3000iS is a reliable and efficient portable generator that provides clean and stable power for your home, RV, or outdoor activities. With its quiet operation and easy-to-use controls, it’s the perfect solution for all your power needs.
• Best for Fuel Efficiency–Westinghouse WGen3600v
  The Westinghouse WGen3600v is a durable and powerful portable generator, ideal for emergencies or outdoor activities.
• Best for Quiet Operation–WEN GN400i
  The WEN GN400i is a powerful and reliable 4000 watt portable inverter generator, perfect for camping, tailgating, and backup power. Its compact design and quiet operation make it a great choice for outdoor enthusiasts and homeowners alike.
• Best for Value for Money–Champion Power Equipment 100302
  The Champion Power Equipment 100302 is a reliable and durable generator with a 196cc engine that can provide up to 4000 starting watts and 3500 running watts of power, making it perfect for emergency backup or powering your RV.
• Best for Portability–Briggs & Stratton 30736
  Power up your home or business with the Briggs & Stratton 30736 portable generator – durable and easy-to-use for reliable backup power.
• Best for Ease of Use–DuroMax XP4000S
  The DuroMax XP4000S is a dependable and robust portable generator that provides 4,000 watts of surge power and 3,300 watts of continuous power, ideal for backup power during emergencies or outdoor events.
• Best for Affordability–A-iPower SUA4000i
  The A-iPower SUA4000i is a powerful and portable inverter generator with 4000 peak watts and 3500 running watts, perfect for camping, tailgating, or powering your RV.
• Best for Power Output–Generac 6864
  Generac 6864 is a powerful and reliable portable generator that can provide backup power during outages or serve as a primary power source for outdoor events and construction sites.

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The Honda EU3000iS is a reliable and popular portable generator that offers advanced inverter technology and fuel efficiency for up to 20 hours of continuous use. With its compact design, including a handle and wheel kit, and user-friendly features like electric start and noise-reducing muffler, it is a versatile and dependable choice for various applications.

Features:

• Inverter technology that provides clean and stable power for sensitive electronics
• Electric start with recoil backup for easy starting
• Automatic shutdown system to protect the engine from damage
• Fuel-efficient operation with up to 20 hours of runtime on a single tank of gas
• Quiet operation with noise levels as low as 58 decibels
• Parallel capability for increased power output

Fuel Efficiency and Performance:

The Honda EU3000iS generator is fuel-efficient, capable of running up to 20 hours on a 3.4-gallon tank of gas. It also delivers 3000 watts of power, making it a reliable choice for a variety of uses. The generator’s compact design makes it easy to transport and store.

Portability and Convenience:

The Honda EU3000iS generator is highly portable and convenient, weighing only 131 pounds and featuring a handle and wheel kit for easy transportation. Its electric start and advanced inverter technology add to its convenience and versatility.

Why Choose the Honda EU3000iS Portable Generator:

The Honda EU3000iS portable generator offers reliable power with advanced inverter technology and fuel efficiency for up to 20 hours of continuous use. Its portability, electric start, and noise-reducing features make it an easy and versatile choice for various applications.

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The Westinghouse WGen3600v Portable Generator is a powerful and reliable generator that is perfect for powering appliances, electronics, and power tools. 

Features:

• Power Output: The WGen3600v is capable of producing up to 4,650 peak watts and 3,600 rated watts of power, making it suitable for powering appliances, electronics, and power tools.

• Fuel Efficiency: Equipped with a 4-gallon fuel tank, this generator can provide up to 18 hours of run time on a single tank of gas (at 25% load).

• Engine: The WGen3600v is powered by a 212cc OHV engine that is designed for optimal performance and durability.

• Outlets: The control panel features a variety of outlets, including two 120V household outlets, one 120V RV outlet, and one 12V DC outlet, allowing for easy connection to various devices and appliances.

• Portability: This generator is designed for easy transportation with a built-in handle and never-flat wheels, making it suitable for camping, tailgating, or other outdoor activities.

• Durability: The WGen3600v is built with a durable steel frame that is designed to withstand harsh environments, making it a reliable option for emergency backup power.

• Warranty: The generator is backed by a 3-year limited warranty, providing peace of mind and protection against potential defects or malfunctions.

Fuel Efficiency and Performance:

The WGen3600v is equipped with a powerful 212cc OHV engine that can produce up to 4,650 peak watts and 3,600 rated watts. It has a 4-gallon fuel tank that can provide up to 18 hours of run time on a single tank of gas (at 25% load).

Portability and Convenience:

This generator is designed for easy transportation with a built-in handle and never-flat wheels. It also has a convenient control panel that features a variety of outlets, including two 120V household outlets, one 120V RV outlet, and one 12V DC outlet.

Why Choose the Westinghouse WGen3600v Portable Generator:

Reliable and Durable: The WGen3600v is built with high-quality materials and is designed to withstand harsh environments. It has a durable steel frame and is backed by a 3-year limited warranty.

Easy to Use: The control panel is user-friendly and easy to navigate, making it simple to operate even for those with limited experience with generators.

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The WEN GN400i Inverter Generator is a highly rated generator that is perfect for powering sensitive electronics and appliances. Here are some of its key features:

Features:

• Power Output: The GN400i is capable of producing up to 4,000 peak watts and 3,500 rated watts of power, making it suitable for powering appliances, electronics, and power tools.

• Fuel Efficiency: Equipped with a 1.85-gallon fuel tank, this generator can provide up to 7 hours of run time on a single tank of gas (at 50% load).

• Engine: The GN400i is powered by a 212cc 4-stroke OHV engine that is designed for optimal performance and durability.

• Inverter Technology: The generator uses inverter technology to produce clean and stable power that is safe for sensitive electronics and appliances.

• Outlets: The control panel features two 120V household outlets, one 12V DC outlet, and one 5V USB port, allowing for easy connection to various devices and appliances.

• Portability: This generator is lightweight and compact, weighing only 66 pounds, and comes with a built-in handle for easy transportation.

• Noise Level: The generator operates at a quiet 57 decibels, making it one of the quietest generators on the market.

• Warranty: The generator is backed by a 2-year warranty, providing peace of mind and protection against potential defects or malfunctions.

Fuel Efficiency and Performance:

The GN400i is equipped with a 212cc 4-stroke OHV engine that produces up to 4000 surge watts and 3500 rated watts. It has a 1.85-gallon fuel tank that can provide up to 7.5 hours of run time at half load.

Portability and Convenience:

This generator is lightweight and compact, weighing only 66 pounds. It also has a built-in handle for easy transportation and a control panel that features two 120V household outlets, one 12V DC outlet, and one 5V USB port.

Why Choose the WEN GN400i Inverter Generator:

Clean and Stable Power: The GN400i uses inverter technology to produce clean and stable power that is safe for sensitive electronics and appliances.

Quiet Operation: The generator operates at 57 decibels, making it one of the quietest generators on the market.

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The Champion Power Equipment 100302 Dual Fuel Generator is a versatile generator that can run on both gasoline and propane. 

Features:

• Dual Fuel Capability: The generator is designed to run on either gasoline or propane, providing users with more options for fueling.

• Power Output: The generator has a maximum output of 4000 starting watts and 3500 running watts on gasoline, and 3600 starting watts and 3150 running watts on propane. This makes it suitable for powering appliances, electronics, and power tools.

• Fuel Efficiency: The generator has a 4-gallon gasoline tank that can provide up to 17 hours of run time at 25% load, and a 20-pound propane tank can provide up to 14.5 hours of run time at 25% load.

• Engine: The generator is powered by a 224cc engine that is designed for optimal performance and durability.

• Outlets: The control panel features two 120V household outlets, one 120V 30A RV outlet, and one 12V DC outlet, allowing for easy connection to various devices and appliances.

• Portability: The generator is designed with a durable steel frame and comes with never-flat tires and a folding handle for easy transportation.

• Noise Level: The generator operates at a noise level of 68 dBA from 23 feet, which is relatively quiet for a generator of its size.

• Warranty: The generator is backed by a 3-year limited warranty, providing peace of mind and protection against potential defects or malfunctions.

Fuel Efficiency and Performance:

The generator is equipped with a 224cc engine that can produce up to 4000 starting watts and 3500 running watts on gasoline, and 3600 starting watts and 3150 running watts on propane. It has a 4-gallon gasoline tank that can provide up to 17 hours of run time at 25% load, and a 20-pound propane tank can provide up to 14.5 hours of run time at 25% load.

Portability and Convenience:

This generator is designed with a durable steel frame and comes with never-flat tires and a folding handle for easy transportation. It also has a control panel that features two 120V household outlets, one 120V 30A RV outlet, and one 12V DC outlet.

Why Choose the Champion Power Equipment 100302 Dual Fuel Generator:

Dual Fuel Capability: The generator can run on both gasoline and propane, giving users more flexibility and options for fueling.

High Performance: The generator produces enough power to run most household appliances and electronics, making it a reliable choice for emergency backup power.

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The Briggs & Stratton 30736 Portable Generator is a reliable power source designed for various applications such as powering essential appliances during a power outage, camping trips, or outdoor events. It offers a powerful performance, fuel efficiency, and portability, making it a popular choice among users.

Features:

• Power Output: The generator has a maximum output of 3500 starting watts and 3000 running watts, making it suitable for powering essential appliances and electronics during power outages or while camping.

• Fuel Efficiency: The generator is designed with a 4-gallon metal fuel tank that provides up to 14 hours of run time at 50% load, making it fuel-efficient and cost-effective.

• Engine: The generator is powered by a Briggs & Stratton 208cc OHV engine that is designed for long-lasting performance and reliability.

• Outlets: The generator features four 120V household outlets, one 120/240V 30A locking outlet, and one 12V DC outlet, allowing for easy connection to various devices and appliances.

• Portability: The generator is designed with a durable steel frame and features never-flat wheels and a fold-down handle, making it easy to transport and store.

• Noise Level: The generator operates at a noise level of 76 dBA from 23 feet, which is relatively loud for a generator of its size.

• Warranty: The generator is backed by a 2-year limited warranty, providing protection against potential defects or malfunctions.

Fuel Efficiency and Performance: 

The Briggs & Stratton 30736 Portable Generator is designed with a 4-gallon metal fuel tank that provides up to 14 hours of run time at 50% load. It has a maximum output of 4750 starting watts and 3800 running watts, powered by a reliable Briggs & Stratton 208cc OHV engine.

Portability and Convenience:

The generator features never-flat wheels and a fold-down handle, making it easy to move around and store. It also has four 120V household outlets, one 120/240V 30A locking outlet, and one 12V DC outlet, allowing for easy connection to various devices and appliances.

Warranty: The generator comes with a 2-year limited warranty, providing protection against potential defects or malfunctions.

Why Choose the Briggs & Stratton 30736 Portable Generator

Fuel efficiency: The generator is designed to be fuel-efficient, providing up to 14 hours of run time at 50% load with its 4-gallon metal fuel tank.

Portability and convenience: The generator features never-flat wheels and a fold-down handle, making it easy to move around and store. It also has multiple outlets for easy connection to various devices and appliances.

Reliable performance: The generator is powered by a reliable Briggs & Stratton 208cc OHV engine, providing a maximum output of 4750 starting watts and 3800 running watts.

Warranty: The generator comes with a 2-year limited warranty, providing protection against potential defects or malfunctions.

Versatility: The generator features four 120V household outlets, one 120/240V 30A locking outlet, and one 12V DC outlet, allowing for easy connection to various devices and appliances.

Overall, the Briggs & Stratton 30736 Portable Generator offers excellent fuel efficiency, portability, reliability, and versatility, making it a popular choice for those in need of a reliable power source. Additionally, its warranty provides added protection and peace of mind.

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The DuroMax XP4000S Gas Powered Portable Generator is a reliable and cost-effective option for those in need of a portable power source. It is powered by a 7 HP air-cooled OHV engine, providing 4000 starting watts and 3300 running watts of power. Some of its features include fuel efficiency, up to 8 hours of run time on a single tank of gas at 50% load, a compact and lightweight design with a built-in handle for easy portability, and multiple outlets for easy connection to various devices and appliances.

Features:

• Fuel efficiency and performance: The DuroMax XP4000S is powered by a 7 HP air-cooled OHV engine, providing 4000 starting watts and 3300 running watts of power. The generator is designed to be fuel-efficient, offering up to 8 hours of run time on a single tank of gas at 50% load.

• Portability and convenience: The generator features a compact and lightweight design with a built-in handle, making it easy to move and store. It also has multiple outlets for easy connection to various devices and appliances.

• Noise reduction: The generator is equipped with a muffler that helps reduce noise levels during operation, making it less disruptive to nearby individuals.

• Automatic voltage regulation: The generator features an automatic voltage regulator (AVR) that helps maintain a steady flow of power, preventing damage to connected devices and appliances.

• Safety features: The generator has several safety features, including a low oil shutoff that automatically turns off the engine when the oil level is too low, preventing damage to the engine. It also has a circuit breaker that protects against electrical overloads.

Fuel efficiency and performance:

The DuroMax XP4000S is powered by a 7 HP air-cooled OHV engine, providing 4000 starting watts and 3300 running watts of power. The generator is designed to be fuel-efficient, offering up to 8 hours of run time on a single tank of gas at 50% load.

Portability and convenience:

The generator features a compact and lightweight design with a built-in handle, making it easy to move and store. It also has multiple outlets for easy connection to various devices and appliances.

Why choose the DuroMax XP4000S:

The generator is a cost-effective option for those looking for a reliable power source during power outages or outdoor activities. It is easy to use, versatile, and designed to provide consistent power output.

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The A-iPower SUA4000i Portable Inverter Generator is another great option for those in need of a reliable and efficient power source. Here are the features, pros, and cons of this generator:

Features:

• Inverter Technology: The generator’s inverter technology ensures stable and clean power output suitable for use with sensitive electronics like laptops and smartphones. It features a digital display that shows the generator’s operating status, including voltage, frequency, and runtime.
• Electric Push-Button Start: The A-iPower SUA4000i has an electric push-button start, making it easy to start the generator quickly and easily.
• Parallel Capability: The generator has a parallel capability, which means you can connect two A-iPower SUA4000i units together to increase the power output.

Fuel Efficiency and Performance:

The generator is equipped with a 212cc OHV engine that can produce up to 4000 peak watts and 3500 rated watts. It features an eco-throttle system that adjusts the engine speed according to the power demand, maximizing fuel efficiency and extending the generator’s runtime.

Portability and Convenience:

The A-iPower SUA4000i has a compact and lightweight design, weighing only 90 pounds. It features a telescoping handle and never-flat wheels for easy transportation. The generator also includes a variety of outlets, including two 120V AC outlets, one 120V/240V twist-lock outlet, and one 12V DC outlet.

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The Generac 6864 Portable Generator is a highly reliable and powerful generator that can deliver up to 5500 watts of peak power and 4500 watts of rated power. It features a 389cc OHV engine that can provide efficient and consistent power to your appliances and tools. The generator comes with a 7.2-gallon fuel tank that can run for up to 11 hours at 50% load.

In terms of portability, the Generac 6864 features a durable and compact design with never-flat wheels and a fold-down handle for easy transportation and storage. It also has a low-tone muffler that reduces noise levels and ensures quiet operation.

Features:

• 3500 starting watts and 3000 running watts

• Generac OHV engine with splash lubrication for long-lasting performance

• Large-capacity steel fuel tank with fuel gauge for extended run time

• Fold-down handle and never-flat wheels for easy portability

• Covered outlets for added protection and durability

• Why Choose the Generac 6864 Portable Generator:

• The Generac 6864 Portable Generator offers a powerful and reliable source of electricity for your home, camping trips, or job site. 

Fuel Efficiency and Performance:

Equipped with a powerful Generac OHV engine that delivers 5500 running watts and 6875 starting watts.

TruePower Technology that provides clean and stable power for sensitive electronic devices.

Features a large-capacity fuel tank that can provide up to 11 hours of continuous operation at 50% load.

Portability and Convenience:

Compact and lightweight design with integrated handle and wheels for easy transportation.

User-friendly control panel with a variety of outlets for different applications.

Comes with a folding handle for space-saving storage.

Why Choose the Generac 6864 Portable Generator:

Provides reliable and stable power for various applications, including emergency backup, camping, and outdoor events.

Features a durable and high-quality construction that can withstand tough conditions.

Offers easy maintenance and servicing, with a low-oil shutdown feature that prevents engine damage.

Backed by a 2-year limited warranty and a nationwide customer support network.

Overall, the Generac 6864 Portable Generator is a top-performing and convenient power solution that can meet the needs of a wide range of users.

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Exploring the Three Main Types of 4000 Watt Generators

There are three main types of 4000 watt generators available on the market today: conventional, inverter, and dual-fuel generators. Each type has its own unique features and benefits, and choosing the right type of generator depends on your specific power needs and usage requirements.

Conventional generators are the most common type of generator and are typically powered by gasoline or diesel fuel.

They use a standard alternator to generate AC power and are generally less expensive than other types of generators. However, they can be quite noisy and may not be suitable for use in residential areas.

Inverter generators are a newer type of generator that use advanced electronics to provide clean and stable power.

They are more fuel-efficient than conventional generators and are much quieter, making them ideal for use in residential areas and for outdoor activities like camping and tailgating. Inverter generators are also typically more expensive than conventional generators.

Dual-fuel generators are a versatile option that can run on either gasoline or propane,

Giving you the flexibility to choose the most cost-effective fuel source depending on your needs. They are typically more expensive than conventional generators, but their ability to run on two different fuel sources can be very useful in emergency situations.

When choosing a 4000 watt generator,

It’s important to consider factors like fuel efficiency, noise levels, portability, and power output to determine which type of generator will best suit your needs.

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The Advantages of Owning a 4000 Watt Generator

Owning a 4000 watt generator can offer numerous advantages, especially for those who live in areas that are prone to power outages or those who need a reliable power source for their outdoor activities. Here are some of the benefits of owning a 4000 watt generator:

Backup power:

A 4000 watt generator can provide enough power to run essential appliances and devices during a power outage, such as a refrigerator, lights, and a television. This can help you avoid losses due to spoiled food, disrupted work, or missed communication.

Convenience:

With a 4000 watt generator, you can have access to power even in remote areas or while camping. This allows you to use electrical devices, such as a portable stove, coffee maker, or charging your phone.

Cost savings:

Owning a 4000 watt generator can help you save money in the long run. Instead of relying on expensive fuel-powered backup systems, a 4000 watt generator can run on gasoline or propane, which is more affordable.

Security:

A 4000 watt generator can provide added security during natural disasters or emergencies. With backup power, you can keep your home well-lit, which can deter potential burglars.

Overall, owning a 4000 watt generator can offer peace of mind, convenience, and cost savings. It’s an excellent investment for anyone who needs reliable and portable power.

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Important Factors to Consider When Purchasing a 4000 Watt Generator

If you’re in the market for a 4000 watt generator, there are several factors to consider before making a purchase.

Power Output:

The wattage output of the generator is a critical factor to consider, and you need to ensure that it’s sufficient to power your appliances and tools.

Fuel Efficiency:

Fuel efficiency is a key factor, as generators can consume a significant amount of fuel over time. You want to choose a generator that provides a decent runtime without burning through fuel too quickly.

Noise Level:

Generators can be noisy, and you need to make sure that you’re getting a model that operates at a reasonable noise level. Look for models with noise-reducing features like mufflers or sound insulation.

Portability:

If you plan to move the generator frequently, portability is an essential consideration. Look for models with sturdy handles, wheels, and a compact design that makes it easy to transport.

Brand and Warranty:

Look for well-known brands with a good reputation for producing reliable generators. Also, check the warranty offered by the manufacturer to ensure that you’re protected against any defects or issues.

Price:

Finally, consider the price of the generator. While it’s tempting to choose a low-priced model, investing in a higher-end generator can save you money in the long run by providing better fuel efficiency, longer lifespan, and lower maintenance costs.

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Frequently Asked Questions (FAQs) About 4000 Watt Generators

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Conclusion and Recommendations

In conclusion, a 4000 watt generator is an excellent investment for anyone looking to have a reliable source of power during power outages, camping trips, or any other outdoor activity that requires electricity. When selecting a 4000 watt generator, it’s important to consider factors such as fuel efficiency, performance, portability, noise level, and ease of use.

Based on our review, the top 10 best 4000 watt generators are the Westinghouse WGen3600v, WEN GN400i, Champion Power Equipment 100302, Briggs & Stratton 30736, DuroMax XP4000S, Pulsar PG4000iSR, A-iPower SUA4000i, Ford FG4650P, Generac 6864, and Sportsman GEN4000.

We recommend the Westinghouse WGen3600v for its fuel efficiency and performance, as well as its portability and convenience. Additionally, the DuroMax XP4000S is a great option for those looking for a gas-powered generator that can provide consistent power for extended periods.

Overall, the choice of a 4000 watt generator ultimately depends on your specific needs and preferences. Be sure to consider the important factors discussed above and consult with a professional if you have any doubts.