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Guardian 22kW Home Backup Generator

Model #7043
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$4,899.00 MSRP Includes Transfer Switch - Installation, Taxes and Shipping Not Included Where To Buy Get a FREE
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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.


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 built 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.

Mobile Link™ Remote Monitoring 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 the generator’s maintenance schedule. Connect your account to your authorized service dealer for fast, friendly and convenient assistance. (sold separately)

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 4 out of 5 by from 2nd system I have had Techs that did the installation was very good, their management not so much
Date published: 2018-02-17
Rated 5 out of 5 by from Best decision we've made in our lifetime! I live in the deep south, and hurricanes and floods occur often, so loss of power is a common occurrence for us. We had been wanting a whole house generator for a while. After Katrina, we were without power for 5 weeks. We suffered through using portable generators for the last few years, but with our advancing age, the hassle of using two or three small generators to keep our freezers, well pump, and lights running got to be a real hassle! So we finally invested in a Generac whole house generator. That is one of the better decisions of our lifetime! We researched and talked to other owners before buying, and decided that Generac brand was the best choice. We are confident that this purchase will give us many years of hassle free service. THANKS Generac!
Date published: 2018-02-17
Rated 5 out of 5 by from Whole House Automatic Switch Makes Life Easier with Loss of Power As a lifelong resident of North Florida, I have always been concerned with the risk of losing power during hurricane season, both at home and at work. For several years, I considered having a whole house generator installed, but could not justify the cost. I had done enough research that I knew that I wanted a Generac unit, as it appeared to have become the standard in backup power units, much like Apple products has done with cell phones, and Microsoft has accomplished with computers. When Hurricane Irma left us without power for 5 days, I began researching units again, and was pleasantly surprised that the unit cost had continued to decline. With hurricane season approaching again, we decided the cost was justifiable. We had a unit installed last week. The Automatic Transfer Switch works like a charm. It senses when power is lost and automatically starts the generator. Likewise, when regular power is restored, the switch senses that and starts the generator shut down process. As the owner, I didn't have to lift a finger! While we do not ever want to face another hurricane, the likelihood of that happening is slim to none. We are now prepared. Generac has made life easier!
Date published: 2018-02-16
Rated 5 out of 5 by from Very happy with this generator knowing that I will never have to worry about loosing power to my home ! This was the best money I’ve spent to protect my home ! Colonial Generator was very proffesional with the installation and the workers were very knowledgeable about this product ! I am very pleased with choosing a proffesional installer and would recommend this product and Colonial Generator to anyone ! You can’t get any better !
Date published: 2018-02-13
Rated 5 out of 5 by from looks good Just got the unit the run up went well, basically set it and forget it.
Date published: 2018-02-13
Rated 5 out of 5 by from Just what we need, great product Great for our area where electricity goes out when needed the most. No more half baked cakes in the oven.
Date published: 2018-02-10
Rated 4 out of 5 by from Pleased with New Unit Based on Initial Performance/Quality Based on power outage testing performed after installation by our installer I was impressed by what the unit does, but more impressed with how quickly it does it. Initial quality seems very good, and the unit design is attractive. I'm almost excited for our first real power outage.
Date published: 2018-02-09
Rated 5 out of 5 by from Reliable I have neighbors that have the 22 KW full house generator. They are all very satisfied with performance during the last hurricane. The unit is much more quiet than other models. I purchased it from Generx Generators in Oldsmar FL. I have been very satisfied with their service and installation crews.
Date published: 2018-02-07
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22kW-7043 whole house switch is rated 4.9 out of 5 by 1191.
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