We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy
Hero

Top-10 Fuel Efficient Generator
Loved in the USA

Handpicked for quality & trusted by thousands of customers
#1
Top Rated in the USA
Westinghou
Westinghouse

Born in the USA

Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered

Fast Delivery
10.0
226 reviews

Solid Value from a Trusted Brand

View Deal
1 139 bought in past month
#2
Generac 9,
Generac

Born in the USA

Generac 9,400 7,500-Watt Dual Fuel Portable Generator - Electric Start - Gas or Propane Powered - Home Backup or Jobsite - Quiet, Long Runtime, Emergency Power - 49-State Compliant

5%OFF

Fast Delivery
8.8
217 reviews

Item still has Pre-Tariff price

View Deal
1 037 bought in past month
Last Purchases
Am***ia
Philadelphia, PA
4d ago
El***or
San Diego, CA
3d ago
Ale***der
Philadelphia, PA
14h ago
#3
DuroMax XP
DuroMax

Born in the USA

DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer Switch Ready, RV & Emergency Ready

37%OFF

Fast Delivery
8.8
12 129 reviews

Item still has Pre-Tariff price

View Deal
935 bought in past month
Feels more expensive than it is.
GabrielSan Francisco, CA
#4
WEN 14,500
WEN

Born in the USA

WEN 14,500-Watt 120V 240V Tri-Fuel Generator for Gas, Propane, and Natural Gas, Transfer-Switch Ready with Electric Start and Wheel Kit (TF1450)

10%OFF

Fast Delivery
8.8
1 938 reviews

Item still has Pre-Tariff price

View Deal
833 bought in past month
Curated products trusted bytrust us brands
#5
Westinghou
Westinghouse

Born in the USA

Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered

18%OFF

Fast Delivery
8.2
26 776 reviews

Item still has Pre-Tariff price

View Deal
731 bought in past month
#6
Generac 5,
Generac

Born in the USA

Generac 5,200-Watt Dual-Fuel Portable Inverter Generator - Gas and Propane Compatible - Quiet Operation - Produces Clean, Stable Power - Great for Home Backup, Camping, and RV Use

7%OFF

Fast Delivery
8.2
182 reviews

Item still has Pre-Tariff price

View Deal
629 bought in past month
#7
Westinghou
Westinghouse

Born in the USA

Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered

Fast Delivery
7.6
2 374 reviews

Solid Value from a Trusted Brand

View Deal
527 bought in past month
#8
Westinghou
Westinghouse

Born in the USA

Westinghouse 13500 Peak Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered

9%OFF

Fast Delivery
7.3
2 374 reviews

Item still has Pre-Tariff price

View Deal
425 bought in past month
#9
Honda 6642
Honda

Honda 664240 EU2200i 2200 Watt Portable Inverter Generator with Co-Minder

23%OFF

Fast Delivery
7.0
2 059 reviews

Item still has Pre-Tariff price

View Deal
323 bought in past month
#10
WEN Quiet
WEN

Born in the USA

WEN Quiet and Lightweight 3600-Watt Dual Fuel RV-Ready Portable Inverter Generator with Fuel Shut Off and CO Watchdog (DF360iX)

10%OFF

Fast Delivery
7.0
876 reviews

Item still has Pre-Tariff price

View Deal
221 bought in past month

More great picks just for you

Westinghou
Westinghouse

Born in the USA

Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered

Fast Delivery
2 462
verified reviews

Solid Value from a Trusted Brand

View Deal
119 bought in past month
Honda EU22
Honda

Honda EU2200ITAN 2200-Watt 120-Volt Super Quiet Portable Inverter Generator with CO-Minder - 49-State

Fast Delivery
1 033
verified reviews

Solid Value from a Trusted Brand

View Deal
17 bought in past month
WEN Quiet
WEN

Born in the USA

WEN Quiet 6800-Watt Dual Fuel RV-Ready Electric Start Portable Inverter Generator with Fuel Shut Off and CO Watchdog for Electric Vehicle Backup (DF680iX)

Fast Delivery
2 976
verified reviews

Solid Value from a Trusted Brand

View Deal
Explore other best-rated products in this category
Westinghou
Westinghouse

Born in the USA

Westinghouse 18000 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered, CO Sensor

Fast Delivery
591
verified reviews

Solid Value from a Trusted Brand

View Deal
Westinghou
Westinghouse

Born in the USA

Westinghouse 5000 Peak Watt Super Quiet Dual Fuel Portable Inverter Generator, Remote Electric Start, Gas & Propane Powered, RV Ready, CO Sensor, Parallel Capable

Fast Delivery
1 974
verified reviews

Solid Value from a Trusted Brand

View Deal

Our Top Picks

#1

Winner

Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered

Rating
10.0
Chosen by1,139
Fuel Type
Wattage
Fuel Efficiency

Most important from
226 reviews

Fuel Type
Its tri-fuel capability offers great flexibility, allowing seamless switching between gasoline, propane, and natural gas depending on availability.
Wattage
This generator is a powerhouse that can handle an entire home effortlessly, including heavy loads like a 5-ton AC and 220-volt appliances.
Fuel Efficiency
Fuel efficiency is promising, especially when using propane or natural gas to avoid carbon buildup and extend engine life.
Noise Level
While it’s somewhat loud, the noise level is acceptable given the massive power output it provides.
Portability
Built with a sturdy frame and equipped with solid never-flat wheels, it’s heavy but still manageable with proper preparation or assistance.

The Westinghouse 28000 Peak Watt Tri-Fuel Generator is a powerful option designed mainly for larger homes needing reliable backup power. Its standout feature is the tri-fuel capability, meaning it can run on gasoline, propane, or natural gas, giving you flexibility depending on fuel availability or cost. It delivers substantial power, with 28,000 peak watts on gas and solid running watts across all fuels, which is enough to keep your essential home systems and many appliances running during outages.

In terms of fuel efficiency, it can run up to 13 hours at 25% load on a full gasoline tank, which is decent for its size and power. It also has an automatic idle control that helps save fuel when power demands are low, improving efficiency. The generator includes modern features like remote electric start, a digital display for monitoring, and built-in safety sensors, making it user-friendly and safer to operate. It also produces clean power with low total harmonic distortion, so your sensitive electronics like phones and computers are protected.

Portability is addressed with large never-flat wheels and foldable handles, but the unit is quite heavy at 557 pounds, so it’s best thought of as a semi-portable solution rather than something you’d move frequently or alone. This generator offers excellent power and flexibility, making it more suitable for residential whole-home backup rather than smaller, budget-conscious users looking for a quiet or lightweight model. If you want a robust, flexible, and feature-rich generator that can handle large power needs and multiple fuel types, this Westinghouse model is a solid choice. Just be prepared for the weight and consider noise and fuel cost details based on your priorities.

Rating
10.0
Chosen by1,139
Fuel Type
Wattage
Fuel Efficiency

Most important from
226 reviews

Fuel Type
Its tri-fuel capability offers great flexibility, allowing seamless switching between gasoline, propane, and natural gas depending on availability.
Wattage
This generator is a powerhouse that can handle an entire home effortlessly, including heavy loads like a 5-ton AC and 220-volt appliances.
Fuel Efficiency
Fuel efficiency is promising, especially when using propane or natural gas to avoid carbon buildup and extend engine life.
Noise Level
While it’s somewhat loud, the noise level is acceptable given the massive power output it provides.
Portability
Built with a sturdy frame and equipped with solid never-flat wheels, it’s heavy but still manageable with proper preparation or assistance.
#2

Generac 9,400/7,500-Watt Dual Fuel Portable Generator - Electric Start - Gas or Propane Powered - Home Backup or Jobsite - Quiet, Long Runtime, Emergency Power - 49-State Compliant

Rating
8.8
Fuel Type
Portability

Most important from
217 reviews

Fuel Type
Easy to use and maintain with non-ethanol fuel and regular oil changes.
Portability
Starts easily and is simple to move around thanks to large wheels.

The Generac 8011 GP7500E is a robust dual-fuel generator capable of running on both gasoline and propane, offering flexibility in fuel choice. With a running wattage of 7500 Watts and a starting wattage of 9400 Watts, it is powerful enough to handle heavy electrical loads, making it suitable for both emergency power and recreational use. The PowerRush Advanced Technology enhances its starting capacity, which is a significant advantage for demanding applications.

Additionally, the COsense technology ensures safety by detecting carbon monoxide and alerting users, which is a crucial feature for long operation times or indoor use. The generator boasts an extended runtime with up to 110 hours at 50% load on gasoline, though propane offers only 5 hours at the same load, which may require more frequent refueling when using propane. The unit's portability is somewhat hampered by its substantial weight of 204 pounds, though the built-in wheels and handle do provide some mobility.

The generator includes an electric start, making it user-friendly, and features like the hour meter and low-oil shutdown help to maintain the engine's longevity. While its size and weight could be challenging for some users, the Generac 8011 GP7500E stands out for its power, dual-fuel capability, and extended runtime, making it a reliable option for both residential and commercial use.

Rating
8.8
Fuel Type
Portability

Most important from
217 reviews

Fuel Type
Easy to use and maintain with non-ethanol fuel and regular oil changes.
Portability
Starts easily and is simple to move around thanks to large wheels.
#3

DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer Switch Ready, RV & Emergency Ready

Rating
8.8
Wattage
Noise Level

Most important from
12129 reviews

Wattage
These generators are super powerful and easily ran our RV with 3 AC units during the brutal Phoenix summer months.
Noise Level
Despite being a bit loud, the generator is awesome and runs everything just fine, including sensitive electronics.

The DuroMax XP13000EH Dual Fuel Portable Generator is a powerful option with a peak wattage of 13,000 watts, which makes it suitable for home backup during power outages or for use at job sites. It runs on either gasoline or propane, giving you flexibility in fuel choice. The electric start and user-friendly interface make it easy to operate, and it includes a 50-amp outlet for high-power needs.

Its copper windings and robust build ensure durability and longevity, even under heavy use and harsh weather conditions. The generator is portable with no-flat tires, but at 234 pounds, it is quite heavy, which might make moving it around challenging for some users.

Despite some drawbacks, the dual fuel capability, sturdy construction, and high power output make this generator a reliable choice for those needing a versatile and powerful backup power source.

Rating
8.8
Wattage
Noise Level

Most important from
12129 reviews

Wattage
These generators are super powerful and easily ran our RV with 3 AC units during the brutal Phoenix summer months.
Noise Level
Despite being a bit loud, the generator is awesome and runs everything just fine, including sensitive electronics.

Buying Guide for the Best Fuel Efficient Generator

Choosing a fuel-efficient generator can be a great investment, especially if you need a reliable power source for emergencies, outdoor activities, or even for your home or business. The key to selecting the right generator is understanding the various specifications and how they align with your specific needs. Here are some important specs to consider when choosing a fuel-efficient generator.
Fuel TypeGenerators can run on different types of fuel such as gasoline, diesel, propane, or natural gas. The type of fuel affects the generator's efficiency, cost of operation, and availability. Gasoline is widely available but less efficient and has a shorter shelf life. Diesel is more efficient and has a longer shelf life but can be more expensive. Propane is clean-burning and has an indefinite shelf life but requires a storage tank. Natural gas is convenient if you have a gas line but is less portable. Choose the fuel type based on availability, cost, and your specific needs.
WattageWattage indicates the amount of power a generator can produce. It's important to determine your power needs by adding up the wattage of all the devices you plan to run simultaneously. Generators are rated by starting (surge) watts and running (continuous) watts. Starting watts are higher and account for the initial power surge needed to start appliances. Running watts are the continuous power the generator can supply. Choose a generator with a wattage rating that exceeds your total power needs to ensure reliable performance.
Fuel EfficiencyFuel efficiency measures how long a generator can run on a specific amount of fuel. This is usually expressed in terms of run time at a certain load (e.g., half load). A more fuel-efficient generator will run longer on the same amount of fuel, saving you money and reducing the frequency of refueling. Look for generators with features like eco-mode or variable engine speed, which adjust the power output based on the load to improve fuel efficiency. Choose a generator with good fuel efficiency to minimize operational costs and maximize convenience.
Noise LevelThe noise level of a generator is measured in decibels (dB) and indicates how loud the generator will be during operation. Lower noise levels are important for comfort, especially if you plan to use the generator in residential areas or during outdoor activities. Generators with noise levels below 60 dB are considered quiet and are suitable for most applications. Choose a generator with a noise level that won't disturb you or your neighbors, especially if you plan to use it in noise-sensitive environments.
PortabilityPortability refers to how easy it is to move the generator. This is influenced by the generator's weight, size, and design features like wheels and handles. If you need a generator for camping, tailgating, or other outdoor activities, a lightweight and compact model with wheels and handles will be easier to transport. For home or business use, portability may be less critical, but consider how you will move the generator for maintenance or storage. Choose a generator with the right balance of portability and power for your intended use.
RuntimeRuntime indicates how long a generator can operate on a full tank of fuel. This is usually given for a specific load, such as half load. Longer runtimes mean fewer interruptions for refueling, which is especially important during extended power outages or when using the generator for long periods. Consider your typical usage scenarios and choose a generator with a runtime that meets your needs. For example, if you need a generator for overnight use, look for one with a runtime of at least 8-10 hours at half load.
Inverter TechnologyInverter generators produce clean and stable power, making them suitable for sensitive electronics like laptops, smartphones, and medical devices. They are also typically more fuel-efficient and quieter than conventional generators. Inverter technology adjusts the engine speed to match the power demand, improving efficiency and reducing noise. If you need to power sensitive electronics or value quiet operation and fuel efficiency, consider choosing an inverter generator.

FAQ