Guardian 22kW Home Backup Generator

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$4,609.00 Transfer Switch, Installation, Taxes and Shipping Not Included Where To Buy Get a Free Quote What is an In-Home Assessment?



The 22 kW Guardian® Series home standby generator is the largest air-cooled home standby generator on the market. Not only does it deliver all the features and functionality customers have come to expect from the market-leading brand of home standby generators, but with an MSRP that is the lowest cost per kilowatt of any air-cooled home standby generator. Provides whole house coverage for many homes.


Mobile Link™ Remote Monitoring FREE with every Guardian Series Home standby generator Allows you to monitor the status of your generator from anywhere in the world using a smartphone, tablet, or PC. Easily access information, such as the current operating status and maintenance alerts. Connect your account to your authorized service dealer for fast, friendly and proactive service. With Mobile Link, you are taken care of before the next power outage.

5 Year Limited Warranty for automatic standby generators.

True Power™ Technology delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.

Generac generators and engines are engineered and assembled in the USA*.
*Assembled in the USA using domestic and foreign parts

Quiet-Test™ Self-Test Mode runs at a lower RPM for a five or twelve minute test, making generators significantly quieter than other brands while consuming less fuel.

Generac's G-Force Engine is a purpose-built, pressure-lubricated engine capable of handling the rigors of generator use, resulting in power that’s more reliable and requires less routine maintenance than any competitive engine. Learn more about the G‑Force Engine »

24/7/365 Customer Support Team standing by all day, every day from our headquarters in Wisconsin to answer any questions you might have.

Our RhinoCoat™ powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions.

Generac’s Evolution™ Controller features a multilingual LCD display that allows users to monitor battery status and track maintenance intervals to ensure your generator is always in top operating condition.

Home Generator Resources

The purchase of a home backup generator will give you peace of mind for years to come, but it’s a big investment. That is why we want to give you as much information as possible so you can make the right decision based on your needs and budget. The options below will help you understand how the entire process works, what your financing options are, and how to choose the right backup power solution.

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Rated 5 out of 5 by from Automatic features are great This automatic generator gives us peace of mind in the many storms we have to deal with in South Louisiana! It has a weekly check to make sure all is in order. The installation by the very qualified dealer was done quickly and without any problems. I will definitely recommend this product!
Date published: 2019-08-13
Rated 5 out of 5 by from Ready for Hurricane Season and other power glitches We tried to face quite a few Hurricane Seasons with A Gasoline Generator and Solar back up. Both were not adequate. Also living in a contry setting, all electric includin Well for water and freeze up happening in the winter we decided it was time to be really ready. The demonstration after hook up enforced our faith that we should not have to worry any more.
Date published: 2019-08-12
Rated 5 out of 5 by from Top of the line product with great service support in my area. Living in the Texas Gulf Coast hurricanes are a natural occurrence. I am a Sr. Regional Product Support Manager for a heavy duty diesel engine manufacture with 45 years experience servicing diesel engines in Oil & Gas, Construction & Industrial, Marine, and Power Generation applications. In Sept. 2008 we went through hurricane Ike and endured six days without power afterwards. After Ike, we installed a 20kW Guardian unit and had wonderful success and a great piece of mind with the unit at our former home. After living in the Houston area for ten years, we moved away for four years, and we just moved back to the Houston area in May 2019. In preparation of our new home for hurricane season, we purchased a 22kW Guardian unit. Our first unit as well as our new unit are whole house with 200 amp ATS. Our first unit was great but this new unit is AWESOME! The controller has been improved, the unit can now be monitored wireless from anywhere using a cell phone, tablet, or laptop. It is also monitored 24/7/365 by our authorized Generac dealer. The noise level of the unit when running has been reduced substantially. Maintenance items, oil drain, oil filter, air filter, oil fill, dipstick, and battery are all easily accessible. The controller is improved, simple to operate, understand, and is accessible with ease as well. This is a well designed, well built, serviceable unit that is supported by an outstanding dealer with factory trained and certified parts and service personnel offering 24/7/365 service to their customers. And, our Generac is backed by one of the best warranties in the business. It doesn't get any better than this folks.
Date published: 2019-08-12
Rated 5 out of 5 by from We waited TOO LONG!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Living in the country has always been a challenge regarding the community power grid. Innumerable power outages have always been the constant. Having a home based business with VPN for remote employees increased the criticality of having an auxiliary power source. Enter the Guardian 22k Generac ! Not only are we now able to power up our house in toto 24/7 with security in the event of a systemic failure...but we are also now protecting our company's ability to service our partner base thanks to Generac and the Guardian 22k. This BECAME a primary component of our business disaster recovery plan....and the install having been completed - we are all breathing much easier now. :) R
Date published: 2019-08-09
Rated 5 out of 5 by from Going by generac’s good name and reputation Very satisfied with install and generator and the reputable name of general
Date published: 2019-08-09
Rated 5 out of 5 by from Great Whole House Generator Very happy with installation and performance. Like the 10 year parts and labor warranty. Low profile sleek look with handsome cover.
Date published: 2019-08-08
Rated 5 out of 5 by from EXCELLENT PRODUCT & EXCELLENT DEALER SUPPORT We had been researching stand-by generators for our home for the past two years and received two quotes from Generac Dealers in our area. The quotes were comprehensive and thoroughly explained. The dealer we chose completed the installation on time and as promised with quality workmanship from a 3 person crew. We are exceedingly happy with our choice of product, its performance to date and most particularly with our choice of dealer and the support they have provided. We would highly recommend this product and in particular Miskow Generators & Electric.
Date published: 2019-08-07
Rated 5 out of 5 by from New Home I dealt with power outages frequently so adding a whole house generator was a must when I built my new home. I moved in on a Friday and storms came through and I was without power from Saturday to Tuesday. BEST INVESTMENT EVER. And I am not mechanical but wanted to give the generator a break while at work on Monday. It was so simple to shut it down and reset it when I returned. Just the push of a button and life was powered back up. It does an awesome job of powering the house without any effort on my part
Date published: 2019-08-05
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22kW-7043 whole house switch is rated 4.9 out of 5 by 1543.
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