Guardian 22kW Home Backup Generator

Starting At

$5,149.00 MSRP Includes 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.

Up to whole house protection with the 200-amp, NEMA 3R (aluminum outdoor enclosure) smart switch.

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

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 »

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.

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 4 out of 5 by from After 5 repairs problem not resolved! Our generator worked for two years and then we received an error. After five repairs and more parts being shipped - we have requested a replacement since we no longer trust the current generator to function properly. We are working with Generac to see if they grant our request. With one denial behind us, they have agreed to review with a higher source and we are hopeful they will do the right thing by us. We will submit an update once we get to the end of this request. So far, everyone at Generac has been professional and seems to be genuinely concerned about our request. More to come.
Date published: 2020-08-09
Rated 5 out of 5 by from Very good installation experience! Rescom employees were all very helpful and professional. Can't wait for the power to fail and our Generac to kick in! We have only had it for 5 days but know it will last many years. We have a twice-yearly maintenance contract with Rescom and a 7-year warranty from Generac.
Date published: 2020-08-07
Rated 5 out of 5 by from Investment for Peace of Mind Very impressed with all my dealings with Generac and the contractor (RAB Electric). I love the Mobile Link App.
Date published: 2020-08-06
Rated 5 out of 5 by from I cant wait for a power failure to reap my rewards Very clean design. Powerful. Somewhat easy install due to great instructions. Runs quieter than my 8k portable. Smart switch simplified the install. Wifi was easy to set up following the instructions. Powerful twin cylinder engine looks easy to maintain. Looking forward to acomfortable life nest storm outage.
Date published: 2020-08-02
Rated 5 out of 5 by from Great install experience Great experience from initial consultation to the final walk through. Very quiet when it runs through its weekly test. Very pleased with the look and appearance in property. Perkins Generators of Sharpsburg GA came recommended by a trusted electrician and they did not disappoint.
Date published: 2020-08-01
Rated 5 out of 5 by from Quality and value are alive and well I live within 75 miles of the coastal Carolinas. I've finally had all I can take of losing my power. I couldn't tell you the number of times I have watched the commercials for Generac products at the beginning of every hurricane season and say, "Yeah, I seriously need to install a whole house generator." Then we would get hit and there I am without power! Well portable generators have their limits, not to mention my age, so I finally got smart and purchased a whole house Generac generator. WOW! To think that it was so easy and the greatest bang for the buck! Made in the USA (Quality) Low fuel consumption (Economical), and a very quiet unit when it is running. That was the biggest surprise for me. A gracious warranty and great customer service. I call them the friendly problem solvers. They will call back to follow up and assure your complete satisfaction. My hats off to Generac Corp. and all of the folks that produce such fine products!
Date published: 2020-08-01
Rated 5 out of 5 by from great features and installation Shore power was on time and budget. Install went quickly and without complication. Nick and Elizabeth were responsive and most helpful.
Date published: 2020-07-30
Rated 5 out of 5 by from Great product for great price Great looking product. Installation was quick and without much difficulty. Looks great in its location and does not take away from the house features in the back yard. Glad it is installed as we are in our hurricane season. Our portable generator was not going to cut it as we need whole house operation due to our age and medical conditions.
Date published: 2020-07-30
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22kW-7043 whole house switch is rated 4.8 out of 5 by 1728.
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