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?



One of the most powerful air-cooled generators on the market today, the Guardian® Series 22 kW automatic home standby generator can provide whole-house backup power for many homes. 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.


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 5 out of 5 by from Great Job by Mohrmann Electric Received about a half-dozen estimates before deciding on a 22KW generator and Mohrmann Electric to handle the installation. Felt very comfortable speaking with Fred, the owner and his son Dennis, about our needs and some other electric supply issues we had. They gave us a very fair price for the generator and installation (some estimates were for THOUSANDS more); were very knowledgeable in understanding our needs; laid out in detail the installation plan and timetable; met the original installation plan and timetable; and did an excellent job delivering EXACTLY what they promised. We also had them upgrade our circuit and electric panel to 200 amps. We were also extremely surprised by how knowledgeable and detail oriented their administrative staff were. Their administrative staff understood the entire generator, electric and natural gas plumbing installation process and the local permit processes in Huntington NY. They called in advance to schedule all the work; always told us what the next steps were and when they would occur and handled all loan application and billing needs. Never dealt with such a knowledgeable and professional administrative staff. Special thanks to Laura and Meg who we dealt with most of the time and also Theresa. Fred and Dennis - you have a wonderful organization.
Date published: 2020-10-15
Rated 5 out of 5 by from All of the features to power our whole house... Great Product! Southern-Air Residential Services installed our 22KW Back-Up Generator this past summer. They did an outstanding job at a fair price, and in a friendly... professional manner. The product and the installation looks and operates great! We are able to rest easy knowing that we do not have to worry about future power outages or the trouble and inconveniences that accompany matter how long they last.
Date published: 2020-10-15
Rated 5 out of 5 by from This product has great features and easy to understand We would like to thank the people that installed our generator. They all did an awesome job. They were very courteous and friendly and we know we will get great service in the future. I would recommend this product to everyone that is looking for one. The prices are great. Thanks for everything...
Date published: 2020-10-12
Rated 5 out of 5 by from This 22k Generac Generator is a true hero! We purchased a Generac generator after looking at all the options available and found Generac had the best reputation and quality for the money. Well your generator has now been through two hurricanes. Hurricane Sally and Hurricane Delta. We want to thank you for providing us with a superior product and American Air Systems for a professional installation! Generac has made us feel more safe and secure while dealing with the aftermath of these hurricanes. Our home is a home even with prolonged power outages and we made a wise investment! Thank you again
Date published: 2020-10-10
Rated 5 out of 5 by from We've been debating on whether or not to get a home generator. After reviewing the options, genertac was the best choice. My installation was completed yesterday by Craig Electrical. They did a great, professional job. Everyone was patient and kind. Answered all of my questions. I'm glad I choose Craig Electrical. We test the generator and I was able to use all of my appliances and my a/c was working as well. I'm very pleased thus far.
Date published: 2020-10-08
Rated 5 out of 5 by from thumbs up on all of the above Features, appearance, quality, and the installation work was beyond what we ever imagined. The unit speaks for itself. We did our research, and without a doubt GENERAC is the way to go. Elan Electric was the company we hired to get the job done. Kudos, to the team! Josh, and Tom and TJ, professional, and very informative. Never got old when we had a question, and we had a lot of them. they were rated FIVE STARS when we found them, WE give them another FIVE STARS, BRAVO to ELAN ELECTRIC TO A JOB WELL DONE. Yes, we will refer anyone towards GENERAC products, and to Elan Electric.
Date published: 2020-10-06
Rated 5 out of 5 by from The Generac Unit fit our needs for continual power at our second home. The crew from our Dealer, Generator Works were easy to deal with and they coordinated effectively with the local utilities and natural gas supplier. The disconnects and service upgrades were conducted with minimal out of service time. The total time to install was under 6 hours including site prep and cleanup.
Date published: 2020-10-04
Rated 5 out of 5 by from Peace of mind Generac installed yesterday....Charleston Electric did a great job in a highly organized and efficient manner. City inspector impressed with their work. Generac fired right up...the unit sounds like a finely tuned engine in a luxury vehicle. Transfer switch works perfectly. Thank you Generac for building such a fine product...Made in the USA. We live in a region that gets impacted by hurricanes each year. The thought of evacuating while Covid-19 threatens all of us is disconcerting. We now have “peace of mind” that we can stay in our home without losing power. Thank you!
Date published: 2020-10-03
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22kW-7043 whole house switch is rated 4.9 out of 5 by 1754.
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