Updated:March, 2026

10 Best Best Whole House Generators Consumer Reports of 2026

Best Choice

9.9

Outstanding

Generac

Generac Guardian 22kW Home Standby Generator with 200 Amp Transfer Switch - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane

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Why We Love It

Remote Monitoring Anywhere: With Generac 7043 22kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
Whole House Protection: Enjoy comprehensive coverage with Generac's 200 Amp NEMA 3R smart switch, designed for outdoor use with an aluminum enclosure. This ensures that your home remains powered and protected during power outages
Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
High-Quality 22kW Power: True Power Technology delivers clean, stable 22,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

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Why We Love It

Remote Monitoring Anywhere: With Generac 7043 22kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
Whole House Protection: Enjoy comprehensive coverage with Generac's 200 Amp NEMA 3R smart switch, designed for outdoor use with an aluminum enclosure. This ensures that your home remains powered and protected during power outages
Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
High-Quality 22kW Power: True Power Technology delivers clean, stable 22,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

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9.5

Excellent

Generac

Generac Guardian 10kW Home Standby Generator with 100 Amp Transfer Switch - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane

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Main Highlights

Remote Monitoring Anywhere: With Generac 7172 10kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
Whole House Protection: Keep your home powered during outages with Generacs 100 Amp 16-circuit transfer switch, designed for seamless integration with whole house generators. Its durable aluminum enclosure ensures reliable outdoor use and coverage
Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
High-Quality 10kW Power: True Power Technology delivers clean, stable 10,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

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Main Highlights

Remote Monitoring Anywhere: With Generac 7172 10kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
Whole House Protection: Keep your home powered during outages with Generacs 100 Amp 16-circuit transfer switch, designed for seamless integration with whole house generators. Its durable aluminum enclosure ensures reliable outdoor use and coverage
Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
High-Quality 10kW Power: True Power Technology delivers clean, stable 10,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

9.5

Excellent

Generac

Generac Guardian 24kW Home Standby Generator - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane, Quiet Operation

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Main Highlights

Remote Monitoring Anywhere: With Generac 7209 24kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
Quiet-Test Self-Test Mode: Unlike other brands, our generators run quieter during the self-test mode thanks to the lower RPM operation, saving fuel while maintaining peace and quiet for your home
Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
High-Quality 24kW Power: True Power Technology delivers clean, stable 24,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

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Main Highlights

Remote Monitoring Anywhere: With Generac 7209 24kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
Quiet-Test Self-Test Mode: Unlike other brands, our generators run quieter during the self-test mode thanks to the lower RPM operation, saving fuel while maintaining peace and quiet for your home
Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
High-Quality 24kW Power: True Power Technology delivers clean, stable 24,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

9.2

Excellent

Champion Power Equipment

Champion Power Equipment 201222 22 kW aXis Home Standby Generator with 200A Whole House Switch

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Main Highlights

Up to 20% more fuel efficient than leading competitors, this 22-kilowatt generator provides 22,000 watts of continuous power on propane and 19,800 watts on natural gas, with no refueling, no manual operation, and no extension cords needed
With less wiring and lower installation costs thanks to our Power Line Carrier technology, youll save time and money installing your new HSB, easily manage your high-demand appliances with aXis technology, plus advanced airflow design extends engine life
Thanks to advanced sound dampening and a specially designed low-tone muffler, this generator operates at a residential-friendly 67 dBA noise level and performs self-diagnostic tests
24-volt starting system operates in sub-zero or extreme heat (between -22° F and 104° F) with aluminum-zinc coated steel for weatherproofing and oxidation-resistance
Includes 10-year limited warranty with FREE lifetime technical support from dedicated experts

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Main Highlights

Up to 20% more fuel efficient than leading competitors, this 22-kilowatt generator provides 22,000 watts of continuous power on propane and 19,800 watts on natural gas, with no refueling, no manual operation, and no extension cords needed
With less wiring and lower installation costs thanks to our Power Line Carrier technology, youll save time and money installing your new HSB, easily manage your high-demand appliances with aXis technology, plus advanced airflow design extends engine life
Thanks to advanced sound dampening and a specially designed low-tone muffler, this generator operates at a residential-friendly 67 dBA noise level and performs self-diagnostic tests
24-volt starting system operates in sub-zero or extreme heat (between -22° F and 104° F) with aluminum-zinc coated steel for weatherproofing and oxidation-resistance
Includes 10-year limited warranty with FREE lifetime technical support from dedicated experts

9.0

Excellent

Generac

Generac Guardian 18kW Home Standby Generator - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane, Quiet Operation

Free Shipping

Main Highlights

Remote Monitoring Anywhere: With Generac 7226 18kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
Quiet-Test Self-Test Mode: Unlike other brands, our generators run quieter during the self-test mode thanks to the lower RPM operation, saving fuel while maintaining peace and quiet for your home
Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
High-Quality 18kW Power: True Power Technology delivers clean, stable 18,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

Check Price

Main Highlights

Remote Monitoring Anywhere: With Generac 7226 18kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when youre away
Quiet-Test Self-Test Mode: Unlike other brands, our generators run quieter during the self-test mode thanks to the lower RPM operation, saving fuel while maintaining peace and quiet for your home
Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
High-Quality 18kW Power: True Power Technology delivers clean, stable 18,000 watts with under 5% harmonic distortion. Generacs low-maintenance engines run quieter and use less fuel for efficient, reliable home power
Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician

8.8

Very Good

WEN

WEN DF450i Super Quiet 4500-Watt Dual RV-Ready Portable Inverter Generator with Fuel Shut-Off

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Main Highlights

Dual fuel design runs on both gasoline (4500 surge watts, 3500 rated watts) and propane (4500 surge watts, 3150 rated watts)
Auto Fuel Selection Technology automatically switches from propane to gasoline for longer run times
EPA III and CARB compliant 212cc engine provides extremely quiet operation (58 dBA at quarter load, 22 feet)
Produces clean power to prevent damage to sensitive electronics such as smartphones, tablets and laptops
Includes fuel shut-off for easier maintenance, onboard wheels and carrying handle, two three-prong 120V receptacles, one RV-ready AC 120V NEMA TT-30R receptacle, one 12V DC receptacle, one 5V USB port, a digital load and fuel display, and a three-year limited warranty

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Main Highlights

Dual fuel design runs on both gasoline (4500 surge watts, 3500 rated watts) and propane (4500 surge watts, 3150 rated watts)
Auto Fuel Selection Technology automatically switches from propane to gasoline for longer run times
EPA III and CARB compliant 212cc engine provides extremely quiet operation (58 dBA at quarter load, 22 feet)
Produces clean power to prevent damage to sensitive electronics such as smartphones, tablets and laptops
Includes fuel shut-off for easier maintenance, onboard wheels and carrying handle, two three-prong 120V receptacles, one RV-ready AC 120V NEMA TT-30R receptacle, one 12V DC receptacle, one 5V USB port, a digital load and fuel display, and a three-year limited warranty

8.6

Very Good

EF ECOFLOW

EF ECOFLOW 4096Wh Delta Pro 3 Power Station With 3200W Dual Fuel Generator GE305, Portable Backup Generator for Whole Home Use, Emergency, RVs

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Main Highlights

[Important Notice] Due to local regulations, this product is NOT CARB-approved. Cannot be shipped to California.
[Forget Refueling] Featuring a 4000Wh LFP battery capacity, expandable to 48kWh with extra batteries or smart generators, providing 2-4 days of whole-home backup power. With 7 unique and 18 combo charging methods like AC wall outlets, solar panels, gas generators, EV charging piles, or the EcoFlow Smart Home Panel 2, you can forget fuel worries.
[Dual Fuel, Double Assurance] With LPG and gasoline, this dual fuel generator ensures quick access to backup power, alleviating concerns about fuel shortages during emergencies. Easily connect a 20 lb propane tank for up to 24kWh of power. The smart engine produces 8kWh from a single gasoline tank, providing 8 hours of power for home appliances at 25% load.
[Reliability Lasts Longer] Utilize the EcoFlow app for real-time alerts, including CO concentration, high & low-temperature warnings, engine oil alerts, and overload alerts. All features trigger automatic shutdowns for enhanced safety (excluding fuel alerts). Enjoy a longer 3-year warranty period for peace of mind in both use and purchase.
To ensure prompt delivery, please note that the DELTA Pro 3 Solar Generator and the Dual Fuel Generator will be shipped separately. If you receive one item before the other, kindly await the arrival of the remaining item.

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Main Highlights

[Important Notice] Due to local regulations, this product is NOT CARB-approved. Cannot be shipped to California.
[Forget Refueling] Featuring a 4000Wh LFP battery capacity, expandable to 48kWh with extra batteries or smart generators, providing 2-4 days of whole-home backup power. With 7 unique and 18 combo charging methods like AC wall outlets, solar panels, gas generators, EV charging piles, or the EcoFlow Smart Home Panel 2, you can forget fuel worries.
[Dual Fuel, Double Assurance] With LPG and gasoline, this dual fuel generator ensures quick access to backup power, alleviating concerns about fuel shortages during emergencies. Easily connect a 20 lb propane tank for up to 24kWh of power. The smart engine produces 8kWh from a single gasoline tank, providing 8 hours of power for home appliances at 25% load.
[Reliability Lasts Longer] Utilize the EcoFlow app for real-time alerts, including CO concentration, high & low-temperature warnings, engine oil alerts, and overload alerts. All features trigger automatic shutdowns for enhanced safety (excluding fuel alerts). Enjoy a longer 3-year warranty period for peace of mind in both use and purchase.
To ensure prompt delivery, please note that the DELTA Pro 3 Solar Generator and the Dual Fuel Generator will be shipped separately. If you receive one item before the other, kindly await the arrival of the remaining item.

8.3

Very Good

A-iPower

A-iPower 8200W Portable Generator Dual Fuel, Gas and Propane Powered Power Supplies with 322cc OHV Engine, CO Sensor, Heavy Duty Generators For Jobsite, RV, Whole House Backup Emergency

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Main Highlights

Performance series engine: 322cc OHV high performance with cast iron sleeve engine, this portable generator is fuel-efficient, reliable, providing long-life and excellent heat dissipation
High output: 8,200 starting watts with 6,500 running watts on gas and 7,400 starting watts with 5,900 running watts on LPG with a sound level of 68dB
Multi-featured control panel: the control panel consists of CO sensor indicator light, data center display, 2 x 5-20R duplex 20 Amp 120-Volt, 1 x L5-30R 30 Amp 120-Volt, 1 x L14-30R 120-Volt/240-Volt 30 Amp twistlock, 1x USB-A 3.6A, 1x USB-C 3.0A
Dual fuel technology: this portable generator is equipped with dual fuel technology which gives a run time of up to 20-hours at 25% load with 6.3 Gal., fuel tank on gasoline and 17-hours of run time at 25% load on LPG with a standard 20 lbs. propane tank
Peace of mind: A-iPower stands behind its products and offers a 3-year limited manufacturer's warranty

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Main Highlights

Performance series engine: 322cc OHV high performance with cast iron sleeve engine, this portable generator is fuel-efficient, reliable, providing long-life and excellent heat dissipation
High output: 8,200 starting watts with 6,500 running watts on gas and 7,400 starting watts with 5,900 running watts on LPG with a sound level of 68dB
Multi-featured control panel: the control panel consists of CO sensor indicator light, data center display, 2 x 5-20R duplex 20 Amp 120-Volt, 1 x L5-30R 30 Amp 120-Volt, 1 x L14-30R 120-Volt/240-Volt 30 Amp twistlock, 1x USB-A 3.6A, 1x USB-C 3.0A
Dual fuel technology: this portable generator is equipped with dual fuel technology which gives a run time of up to 20-hours at 25% load with 6.3 Gal., fuel tank on gasoline and 17-hours of run time at 25% load on LPG with a standard 20 lbs. propane tank
Peace of mind: A-iPower stands behind its products and offers a 3-year limited manufacturer's warranty

8.1

Very Good

Firman

FIRMAN W03082 Inverter Portable Generator 3300W Electric Start, Whisper Series Quiet Power Supply, Parallel Ready RV Ready 120V, Camping, Tailgating, Outdoor Recreation, Emergency Backup Use

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Main Highlights

Engineered FIRMAN Performance: Powerful 171cc engine delivers 3300 starting watts and 3000 running watts for stable power during outdoor trips, job sites, or mobile needs
Whisper Quiet Operation: Advanced Whisper Series muffler runs at only 59 decibels, making it ideal for camping, tailgating, and use where noise control matters most
Extended Runtime Efficiency: 1.8-gallon fuel tank supports up to 9 hours of operation at 25 percent load for longer use without frequent refueling
Versatile Power Access: Multi-outlet control panel supports RVs, electronics, tools, and accessories for users who need flexible power wherever they travel
Reliable Safety And Control: Electric and recoil start with Eco Mode and low oil shut off for efficient operation, dependable startup, and engine protection

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Main Highlights

Engineered FIRMAN Performance: Powerful 171cc engine delivers 3300 starting watts and 3000 running watts for stable power during outdoor trips, job sites, or mobile needs
Whisper Quiet Operation: Advanced Whisper Series muffler runs at only 59 decibels, making it ideal for camping, tailgating, and use where noise control matters most
Extended Runtime Efficiency: 1.8-gallon fuel tank supports up to 9 hours of operation at 25 percent load for longer use without frequent refueling
Versatile Power Access: Multi-outlet control panel supports RVs, electronics, tools, and accessories for users who need flexible power wherever they travel
Reliable Safety And Control: Electric and recoil start with Eco Mode and low oil shut off for efficient operation, dependable startup, and engine protection

8.1

Very Good

Nature's Generator

Nature’s Generator Powerhouse Gold Plus System:4800Wh Powerhouse and Four 410W Power Panels,120VAC and 240VAC Pure Sine Wave Address Home Power Requirements

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Main Highlights

Nature's Generators' Powerhouse: Address all your home power requirements because of its 120VAC and 240VAC up to 7200W Pure Sine Wave,4800Wh Batteries,2000W solar, 1300W AC charging input and 1000W wind charging capability;5V USB, 12V DC, and 48V DC output.
Three Ways to Charge: You can use Solar Panels,Wind Turbine and AC Power.The recharging speed depends on the the strength of the sunlight or wind.For example: It takes about 4-8 hours to recharge Power house 100% if using 4 Solar Panels.
Dimensions and Weight: Power house with wheel: 28 x 18 x 22.36 inches;434 lbs Power Panel: 69 x 41 x1.4 inches,Weight: 47 lbs.
Solar Panel: Higher module conversion efficiency (up to 20.38%) benefit from half cell structure (low resistance characteristic).Advanced glass and cell surface textured design ensure excellent performance in low-light environment.
What You Can Get: 1 x Nature's Generator Powerhouse Generator;1 x Natures Generator Powerhouse Battery Storage;4 x 410W Power Panels;1 x AC Power Cord;2 xPower Panel Cables;1 x User Guide

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Main Highlights

Nature's Generators' Powerhouse: Address all your home power requirements because of its 120VAC and 240VAC up to 7200W Pure Sine Wave,4800Wh Batteries,2000W solar, 1300W AC charging input and 1000W wind charging capability;5V USB, 12V DC, and 48V DC output.
Three Ways to Charge: You can use Solar Panels,Wind Turbine and AC Power.The recharging speed depends on the the strength of the sunlight or wind.For example: It takes about 4-8 hours to recharge Power house 100% if using 4 Solar Panels.
Dimensions and Weight: Power house with wheel: 28 x 18 x 22.36 inches;434 lbs Power Panel: 69 x 41 x1.4 inches,Weight: 47 lbs.
Solar Panel: Higher module conversion efficiency (up to 20.38%) benefit from half cell structure (low resistance characteristic).Advanced glass and cell surface textured design ensure excellent performance in low-light environment.
What You Can Get: 1 x Nature's Generator Powerhouse Generator;1 x Natures Generator Powerhouse Battery Storage;4 x 410W Power Panels;1 x AC Power Cord;2 xPower Panel Cables;1 x User Guide

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