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Best whole house generators - April 2026

Last Updated - April 4, 2026

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Champion Power Equipment

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

Champion Power Equipment

$6,995.00

More Details
Main highlights
- With less wiring and lower installation costs thanks to our Power Line Carrier technology, you’ll save time and money installing your new HSB, easily manage your high-demand appliances with aXis technology, plus advanced airflow design extends engine life
- 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
- 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
- Includes 10-year limited warranty with FREE lifetime technical support from dedicated experts
- 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
$6,995.00
2
Best Value
10% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Generac
10% Off

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

Generac

$6,155.10

$6,839.00
(10% Off)

More Details
Main highlights
- 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
- 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 you’re away
- 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. Generac’s low-maintenance engines run quieter and use less fuel for efficient, reliable home power
- Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician
- 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
$6,155.10
$6,839.00 (10% Off)
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Westinghouse

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

Westinghouse

$1,499.00

More Details
Main highlights
- Powered by a heavy duty 550cc 4-Stroke OHV Westinghouse Engine constructed with a durable cast iron sleeve; Runs for up to 19 hours on a 9.5 gal. fuel tank with built-in fuel gauge; up to 7 hours on a 20 lb. propane tank
- Perfect as a backup power source for larger homes or a dependable source of portable power
- Engineered with low THD, so it's safe for sensitive electronics. Power phones, computers, TVs and more. Stay connected with people, news and entertainment during power outages, or on jobsites and campsites. Durable copper windings help your generator produce cleaner power, run cooler and last longer
- All Westinghouse portable generators are gunctionally tested in the factory and may contain minimum residual oil and/or fuel odor; EPA compliant; Backed by 3-Year limited service, labor, and parts coverage and Nationwide Customer Service Network
- 14,500 peak watts, 11,500 running watts (gasoline); 13,500 peak watts, 10,500 running watts (propane); 12,000 peak watts, 9,500 running watts (natural gas)
$1,499.00
4
10% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Generac
10% Off

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

Generac

$3,770.00

$4,189.00
(10% Off)

More Details
Main highlights
- Whole House Protection: Keep your home powered during outages with Generac’s 100 Amp 16-circuit transfer switch, designed for seamless integration with whole house generators. Its durable aluminum enclosure ensures reliable outdoor use and coverage
- 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 you’re away
- 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. Generac’s low-maintenance engines run quieter and use less fuel for efficient, reliable home power
- Easy Installation: Generac recommends your new Home Standby Generator to be installed by a certified and licensed electrician
- 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
$3,770.00
$4,189.00 (10% Off)
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Westinghouse

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

Westinghouse

$3,799.99

More Details
Main highlights
- TRI FUEL WESTINGHOUSE WORKHORSE: Powered by a heavy-duty 999 cc Westinghouse V-Twin OHV engine featuring a cast-iron sleeve; reinforced steel handles with quick-release pins; automatic low-oil shutdown; low idle mode; digital readout displaying lifetime run hours, volts, and frequency
- PLUG IN, POWER UP: Two 120/240V 14-50R 50A outlets, two 120/240V L14-30R 30A outlets, all transfer switch and interlock kit ready; one 120V L5-30R 30A outlet, four GFCI 120V 5–20R 20A standard duplex outlets; all have rubber covers; includes oil, funnel, and setup guide to get you going right away
- MAX POWER OPTION: With high output designed for easy whole-home backup, our exclusive 125A 240V AC terminal block lets a licensed electrician hardwire the generator directly to your home for full power delivery without the limits of cords or outlets
- LOW THD—SAFE FOR SENSITIVE ELECTRONICS: Engineered so you can power phones, computers, TVs and more to stay connected with people, news and entertainment during power outages, or on jobsites and campsites. Durable copper windings help your generator produce cleaner power, run cooler and last longer
- HUGE PORTABLE POWER: Gasoline: 28,000 peak watts and 20,000 running watts; Propane: 25,200 peak watts and 18,000 running watts; Natural gas: 22,400 peak watts and 16,000 running watts; up to 13 hrs. of run time at 25% load on a 17.2-gal. tank with gauge; perfect backup power source for larger homes
- BIG AND BUILT TO MOVE: Large, never-flat wheels, foldable steel handles and lift bracket for easy maneuvering, so you get best-in-category power wherever and whenever you need it for home backup or jobsite. The power of a stationary unit, but with portability--so it’s the best of both worlds
$3,799.99

Best whole house generators - April 2026

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

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

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

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

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

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