Guardian 22kW Home Backup Generator

Starting At

$4,709.00 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.

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 Soundly satisfied!! Could not be more pleased with the machine’s performance and quality. The support at the toll free number is also top notch! Thanks Generac for providing a great product that truly gives me peace of mind knowing I’m covered in a power outage.
Date published: 2021-01-20
Rated 5 out of 5 by from I am looking forward to this being a major convenience. I am very pleased with the timely and professional installatioin.
Date published: 2021-01-18
Rated 5 out of 5 by from Outstanding, just what we need! After a rare deep snowstorm in our part of Texas where we lost power completely for 3 days, we knew it was (past) time to install a backup system. We called the Malek Service Company in College Station, Texas at the recommendation of a neighbor who had purchased one of their systems. I give this company my highest recommendation for prompt response to inquiry, prompt installation, great explanations about the operating procedures and features of the generator, and friendly and expert service personnel. The unit runs perfectly and can power our whole house. No more worries about power outages, freezer meltdowns, or freezing (or blistering) in-home temperatures. We could not be happier.
Date published: 2021-01-16
Rated 5 out of 5 by from No more warm beer! After living in the Cape Fear area of North Carolina and experiencing various hurricane outages up to 10 days, we are glad we decided to install a 22K Guardian. The ability to live somewhat normally after a hurricane is a relief. No more hot, humid days and uncomfortable, dark. boring nights waiting in the heat for service to be restored. No more spoiled food. No more cold water showers. No more looking for sold out ice and supplies. No more warm beer! Did the load test today and no problems. We are ready!
Date published: 2021-01-11
Rated 5 out of 5 by from We are so happy with our Generac generator and the install!!!! Our Generac generator was just installed 5 days ago and today we had the ‘Run Through’. The generator runs perfectly! The generator installation was done by For-Tech Electric located in Lakewood, NJ. They took care of everything including getting the permits and scheduling the final inspections. I will forever sing For-Tech’s praises. Dave priced our unit out, Rachel kept us abreast with everything that needed to be done, and the guys that did the actual installation were excellent. (And speaking on Rachel, she is loyal to her employer to a fault. She is so good at what she knowledgeable and just a wonderful person!) Thank you Generac and thank you For-Tech Electric!
Date published: 2021-01-08
Rated 5 out of 5 by from Florida home back up plan I live in Naples Florida were there is a high risk of hurricanes, with the Generac whole house generator I have a sense of relief knowing I will always have power. The Generac is very reliable and I know I can count on having power during hurricane season.
Date published: 2021-01-07
Rated 5 out of 5 by from Tarjeta evolution Se me dano la tarjeta marca evolution de mi generador generac necesito el repuesto que debo hacer
Date published: 2021-01-04
Rated 5 out of 5 by from Awesome Customer Service Service Techs were Josh, Samuel and Johnny. This team worked very well together. Professional, Polite and Efficient. I have already recommended this company to two neighbors!
Date published: 2021-01-04
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22kW-7043 whole house switch is rated 4.9 out of 5 by 1792.
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