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Best 20000 watt generators - Holiday Sale 2025

Last Updated - December 14, 2025

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.

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

Generac

$6,155.10

$6,839.00
(9% 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 (9% Off)
2

✖
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.

DuroMax

DuroMax XP16000iH 16,000-Watt Dual Fuel Portable Digital Inverter Generator - Gas & Propane, Remote Electric Start, Whole Home Power Backup, Transfer Switch Ready, RV & Emergency Ready

DuroMax

$4,554.44

More Details
Main highlights
- Remote Start – Start the generator conveniently with the remote control.
- Power on the Go – With 16,000 peak watts and 13,000 running watts, this generator is perfect for emergency home power, jobsite use, or camping with your RV.
- Low Oil Shutoff – Protects your investment by automatically shutting the generator off when it senses that the oil is low.
- Inverter Technology – Provides clean, stable power for sensitive electronics including televisions and computers.
- Dual Fuel Technology – This generator runs on gasoline or propane giving you the freedom and flexibility of fuel choice.
- Digital Control Center – The Digital Control Center features an LCD display showing hours run, voltage output, and load level.
- Complies with Emissions Standards – All DuroMax generators are both approved by the EPA (Environmental Protection Agency) and CARB (California Air Resources Board) and follow strict guidelines to ensure our generators are as environmentally friendly as possible.
- Battery Tender – Keep your generator's battery charged and ready to start at a moment's notice.
$4,554.44
3
Best Value

✖
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 Home Backup Portable Generator, Remote Electric Start with Auto Choke, Transfer Switch Ready 30A & 50A Outlets, Gas Powered, CO Sensor,Blue

Westinghouse

$3,799.00

More Details
Main highlights
- Powered by a Heavy Duty 999cc Westinghouse V-Twin OHV Engine With a Cast Iron Sleeve, Automatic Low Oil and Carbon Monoxide (CO) Shutdown, and Idle Control
- Plug-and-Play: Oil, Funnel, Setup Guide, and Manual to Get You Started Right Out of the Box; Digital Readout Displays Lifetime Run Hours, Volts, and Frequency; Comes with Reinforced Steel Handles with Quick-Release Pins
- Featuring Four GFCI 120V 5–20R Standard Household Outlets, Two 50A 120/240V 14-50R Outlets, Two 30A 120/240V L14-30R Outlets, One 30A 120V L5-30R Outlet, and ST Switch Outlet; All Outlets Have Rubber Covers for Added Safety
- 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
- 28,000 Peak Watts and 20,000 Running Watts; Easy-Access Start Panel with Remote Start Key Fob, Push-Button Electric Start, Engine Shut Off, and Battery Charging Port; Up to 17 Hours of Run Time at 25% load on a 17 Gallon Fuel Tank with Fuel Gauge
$3,799.00
4

✖
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

$3,899.00

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
$3,899.00
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 18000 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered, CO Sensor

Westinghouse

$2,591.04

More Details
Main highlights
- Powered by a Heavy Duty 713cc V-Twin 4-Stroke OVH Westinghouse Engine Featuring a Long-Lasting Cast Iron Sleeve with Automatic Low Oil and Carbon Monoxide (CO) Shutdown, and Digital Hour Meter
- Plug-and-Play: Comes with a Remote Start Key Fob, 12V Battery Charger, Oil, and Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)
- Features Two GFCI 120V 5–20R Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R; All Outlets Have Rubber Covers for Added Safety
- 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
- 14500 Running Watts, 18000 Peak Watts (Gasoline); 13000 Running Watts, 16000 Peak Watts (Propane); 11600 Running Watts, 14400 Peak Watts (Natural Gas); Electric and Remote Start with Included Key Fob; Up to 12 Hours of Run Time on a 10.57 Gallon Fuel Tank with Fuel Gauge
$2,591.04

Best 20000 watt generators - Holiday Sale 2025

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

DuroMax XP16000iH 16,000-Watt Dual Fuel Portable Digital Inverter Generator - Gas & Propane, Remote Electric Start, Whole Home Power Backup, Transfer Switch Ready, RV & Emergency Ready

Westinghouse 28000 Peak Watt Home Backup Portable Generator, Remote Electric Start with Auto Choke, Transfer Switch Ready 30A & 50A Outlets, Gas Powered, CO Sensor,Blue

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

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

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