Guardian 22kW Home Backup Generator

Starting At

$6,279.00 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 generator! We are extremely happy with our generator! It has given us such peace of mind.
Date published: 2022-05-13
Rated 5 out of 5 by from Very Happy So Far!!! Just had the unit installed. Insulation went smooth with no problems with the unit. All testing good. Will update this review after my next power outage.
Date published: 2022-05-13
Rated 5 out of 5 by from Great product very satisfied with product Just had generator installed on 5/6/22. Once installation was completed. Electrician tested unit it work great powering up the whole house. Very satisfied with product highly recommend generac generators to everyone.
Date published: 2022-05-06
Rated 5 out of 5 by from This is a great product. We purchased the 22KW Guardian whole house generator. We are very pleased with it's performance. We have had it for about a week and already the electricity went off last night and the generator worked perfectly. Never Dark Carolinas installed our generator and propane tank and we were so pleased with their work ethic and professionalism. We highly recommend them.
Date published: 2022-05-06
Rated 5 out of 5 by from Model 7043 is online~ After a long process of considering my actual needs Vs my wishes I selected the #7043 with service disconnect & transfer switch. My gas meter is on the opposite side of my home with the electric meter on the opposite end. I placed the gen on the gas meter side and had my transfer switch mounted in the basement (wall) under the outside electric meter. Install was smooth with the most work running the electric and control wires from the generator to the transfer switch. Gas hook up was straight forward with a "T" inserted into my AC-250 gas meter and a pipe run to the generator. When everything was hooked up gen was test run in manual mode. This thing is a LOT quieter than I had imagined. Engine runs smooth. After a 5 minute test run it was shut down and put in automatic mode. The service disconnect switch was turned off and after about 10 seconds the gen started then the transfer switch did it job and fired the transfer switch to gen power. After a few minutes was turned the city power back on and the gen switched back , ran for a cool off cycle and shut off. Perfect ! The only glitch in everything was configuring the WIFI and trying to use the Generac WIFI activation app. The WIFI app never did work from the installer or my attempts to make it work. I ended up using an IP address for WIFI config ( This worked on the 1st try. I have a multi band WIFI router and my generator liked the 2.4 Ghz radio band. After I got it connected I launched the Generac app and my generator and stats appeared on my phone. Generac also pushed new firmware (1.14.172) to my generator within minutes of getting connected. My install date ( today ) is 4/15/2022 and Generac has made some HUGE improvement to their equipment over the years. Looking at my neighbors house across the street they have an old Generac in the off yellow square cabinet. His is still in use after a decade of use but its REALLY loud and lower KW output than my new 22 KW unit and mine you can barely hear from across the house. When his runs across the street I hope it throws a rod so he buys a new and quieter unit.
Date published: 2022-04-15
Rated 5 out of 5 by from Excellent features I am very satisfied with the quality of the product . It takes all the worry out of a pwer outage. It makes us feel safe and secure knowing we don't have to worry if we are not at home during a power outage.
Date published: 2022-04-15
Rated 5 out of 5 by from So far so good I just got the home standby generator hooked up. It was tested and started up right away. I so glad I have a generator that I can count of when the power goes out. I would like to thank the company for giving me a list of certified Generac installers. The installer was very professional, arrived on time, was very knowledge, and did and great job.
Date published: 2022-04-08
Rated 5 out of 5 by from love the generator great installation the workers were fast and clean.
Date published: 2022-03-31
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22kW-7043 whole house switch WiFi-Enabled is rated 4.9 out of 5 by 1948.
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