Guardian 22kW Home Backup Generator

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$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 Good Quality Product I recently had a Generac 22Kw installed by Roys Generators, in the Wilmington NC area. Roy is an authorized Generac installer and Service professional who did what he said he would, met his commitments, and is very knowledgeable and experienced in all aspects of the generator and its installation. He performed a full turn key installation and bet out the pricing of all others I had received quotes from. He also provides service support on the generator. I would recommend him.
Date published: 2020-02-12
Rated 1 out of 5 by from My unit just ran out of warranty and major system failure Ran great during test runs, the second it goes out of warranty, the stator and coil fail. Disappointed in the quality of Generac, will have to make a different decision for backup because i do not want to pay $10K every 5 years when the next one craps out. Hard to say how long one will last had it really been used during that period under a load.
Date published: 2020-02-03
Rated 5 out of 5 by from 22Kw Generator running on LP is a little loud, but performs well. I would like to see more features for the mobile link: Let me start off by saying, Mobile link is decent for a free application. There are so many things they could have done better though. All the functions on the Generator Control pad for number one. It's linked to my GEN, why can I not control any of the functions of it. Second and most important to me, what load is my generator running at? Can I add more? Now I have to go buy a separate digital load device to monitor. Over all I am happy with the GEN and APP/Software, just wish they would have put more thought into it. Overall Generator runs great with no issues and you definitely can not beat the 10 Year warranty they are offering right now!
Date published: 2020-01-24
Date published: 2020-01-17
Rated 5 out of 5 by from CT Install by Todd Eppley Just had this installed at my home. Todd Eppley/Darien Generators did a great job installing and was able to coordinate all the moving parts to get this done in a smooth fashion without much headache to me. He answered all my questions and look forward to having this protection in place. I recommend his services highly.
Date published: 2020-01-12
Rated 5 out of 5 by from Outstanding product and install 22KW generator installed two months ago. Working perfectly. in fact two days ago the power went out and the generator came up and supplied power immediately. About an hour later power was restored and generator shut down. Shortly thereafter it started again for its weekly test run. We are very happy with this generator.
Date published: 2020-01-06
Rated 5 out of 5 by from Peace of Mind Our generator was installed a couple of weeks ago. I cannot praise the guys who sold and installed the unit highly enough! We're hit by a natural disaster (tornado, hurricane) and lose power from a few days to weeks about every 2 years. We're due; however, this time we are prepared! Now, when the weather turns ugly, we don't cringe and worry how long the power outage will last. The peace of mind is worth the cost. I highly recommend purchasing this unit. .
Date published: 2019-12-19
Rated 5 out of 5 by from Looks great, and provides security and piece of mind we live in a rural area, and several times a year have power outages lasting 1-2 weeks, with one outage lasting 3 weeks! My portable generator was ok, but costs $30.00/day for gas, and I had to get up in the middle of the night to fill it up. Not to mention that if I was not home, my wife was unable to start it up, etc. No more! Within a few seconds of power-loss, everything is back to well, AC, furnace, everything! Awesome.
Date published: 2019-12-18
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22kW-7043 whole house switch is rated 4.9 out of 5 by 1647.
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