Guardian 22kW Home Backup Generator

Starting At

$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 New generator Have only had the unit for a few weeks, but have already had one power outage. The system started up and entire house was running with electric in a matter of seconds. So far so good.
Date published: 2019-12-11
Rated 3 out of 5 by from When they started it it wouldnt generate. I am a little uncertain about the product for now. When they came to start it the motor would run fine but it would not generate any electricity. They now have to call the manufacturer and see what the problem is. They have installed a lot of these and say it is the first to do this. I hope it is something small. I believe once the get it working I will be pleased with it.
Date published: 2019-12-08
Rated 5 out of 5 by from Terrific product! Operates just as dealer said it would. I upgraded from a portable Generac generator to a whole house, permanent model and couldn't be more pleased. My wife and I now have peace of mind whether we are home or away.
Date published: 2019-12-04
Rated 5 out of 5 by from Wonderful peace of mind I live in an older subdivision built many years ago with above ground power running between large fenced yards. This means trees are never trimmed. A storm and we loose power. Wind? Power loss. A calm, cloudless sunny day? Those too thanks to squirrels not understanding transformers. It was late this spring after my third outage in two months, two over 24 hours, that I finally pulled the plug. Install of our 4022 wasn’t until September by Tek Electric, and as predicted the install kept the power stable for months. The first outage was the Wednesday before Thanksgiving, 20 minutes before we were supposed to get on the road for a 10 hour drive. Pre-generator, I’d have considered canceling the drive and at a minimum, pre-emptively emptied the fridge and freezer into the garbage since I had a neighbor putting garbage out on Friday. As it was, I just texted the neighbor and asked if he could shut the generator off for a bit to cool down if it was still running in 24 hours. I only needed the generator for just over 2 hours, which I was able to confirm down the road with MobileLink. A much more pleasant experience than either dumping my food or delaying the Thanksgiving drive.
Date published: 2019-12-01
Rated 5 out of 5 by from 22KW Home Generator Model 7043-2 Live in Hurricane prone area, wanted backup power. Holly Electric (Lake City,FL), did the install. Install techs were James, Johnny and Dillon. Install was quick 4 hours. You couldn't tell they were here, when install was completed. Great job. Tested unit and explain some of the features and maintenance tips. highly recommend Holly Electric,
Date published: 2019-11-25
Rated 5 out of 5 by from Perfect for the hurricane prone southeast I love it. Great peace of mind knowing that when that next hurricane hits , we won’t be without power for a week.
Date published: 2019-11-25
Rated 5 out of 5 by from Design and Function I was impressed with the appearance, ease of operation, function and engineering of this generator. In addition the installers were courteous and professional.
Date published: 2019-11-21
Rated 5 out of 5 by from Great generator We are very happy with the generator we bought. The installation process took quite a while, but it is worth it. Now we won't have to worry about the PG&E shut offs. Our house will run smoothly.
Date published: 2019-11-20
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22kW-7043 whole house switch is rated 4.9 out of 5 by 1634.
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