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Customer reviews for 22,000 Watt Generac Guardian Series WiFi-Enabled , NG Standby Generator With 200A Automatic Transfer Switch for
22,000 Watt Generac Guardian Series WiFi-Enabled , NG Standby Generator With 200A Automatic Transfer Switch
4.7 out of 5 stars
stars
3,788 ratings3,747 reviews
  1. 5 stars84% (3,177)
  2. 4 stars9% (356)
  3. 3 stars3% (105)
  4. 2 stars1% (33)
  5. 1 star3% (117)

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Showing 731-740 of 3,747 reviews
Aug 21, 2026
Reviewer name: WNewburn
4 out of 5 stars
4 out of 5 stars review

It's a real gamechanger!

I bought this a couple of months ago and am pleased with the purchase. It generates plenty of power to supply my entire home and switches over quickly. The sound level is still a little higher than I would like, but mainly because it is located outside my bedroom wall. The sound level has definitely improved over the last several years and is barely noticeable when on the opposite side of the house. The app is useful, but real time notifications should be included in the sale price, as opposed to being a subscription service in my opinion. That is the only reason for the rating deduction. 4.5 / 5 stars, and I would still highly recommend it to anyone. My wife and I absolutely love our Generac.

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Jul 17, 2026
Reviewer name: Ah home
5 out of 5 stars
5 out of 5 stars review

Power up

I have had this unit over 6 years and it's performed well in all my power outages. I can't say anything my negative about the unit since I've had zero issues with it. I also have a 14kw unit in my 2nd home and it's the same way reliable backup power.

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Jul 21, 2026
Reviewer name: Barb
5 out of 5 stars
5 out of 5 stars review

Resting easy, knowing that I will have power

Shortly after installation, power went out and within 5 seconds the generator kicked on. I really don't know why I have waited this long to get this generator. It is loud while it's running, but I can deal with that, knowing that I have power! I would highly recommend this generator!!

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426
Jul 14, 2026
Reviewer name: Mike P
5 out of 5 stars
5 out of 5 stars review

Happy with our Generac

We purchased our Generac from Calibre Electric in Burlington, Ontario. The install was done quickly and the techs were courteous and showed me how to set up the Generac Mobile Link on my phone so I can monitor the machine. A few weeks after the install we had a half day power outage, the generator kicked in promptly and my wife had AC so all was well. It runs a little noisy but with the windows closed we didn't mind. I would recommend to gardeners that you not locate your machine close to plants, as the heat from the exhaust will not be kind to your garden.

Review from generac.com
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Jul 6, 2026
Reviewer name: Cowboy
1 out of 5 stars
1 out of 5 stars review

Features are okay. I just need it to run.

The unit threw a rod in January of 2025 and threw 2 more rods in 2026 with a sum total of 115.5 hours of run time. I can see a unit going down once and being repaired, but twice for the same thing, even Generac should recognize there was and is a problem. Generac finally fixed it but after months of waiting. I would not recommend a Generac to my worst enemy because of Generac's reluctance to make it right.

Review from generac.com
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Jul 13, 2026
Reviewer name: WvaBoy
4 out of 5 stars
4 out of 5 stars review

Almost perfect (so far)

The generator was just installed a couple months ago. So far the electric has gone out a few times and the generator performed flawlessly. We were out of town for the first month that the generator was installed. What surprised me when we got home was that heat generated from the exhaust killed the grass on that side. I personally didn’t put any thought into the direction that the exhaust was going to exit the generator. Be it out and down, strait out or out and up. It made me wonder…. If this has happened to other homeowners, did they mention it to the installer? If it was mentioned to the installer, that may be something the sales rep or the installer brings up to the home owner along with suggestions like laying gravel a couple feet around the perimeter of the generator to keep from having to deal unsightly dead grass.

Review from generac.com
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Aug 5, 2026
Reviewer name: Steve and Joan
5 out of 5 stars
5 out of 5 stars review

Installation in nick of time!!!

Bought for insurance not truly figuring to need. Seriously, 29 days after installation a tornado goes through and breaks off power poles!!! Our home was a shining beacon in the neighborhood! So grateful to be able to care for others with lodging, food prep, electric charging and cooling in the terribly hot and humid days. Grateful beyond what we can express!!!! So glad we did this and just in the nick of time!!!!

Review from generac.com
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Jul 17, 2026
Reviewer name: TURTLE
5 out of 5 stars
5 out of 5 stars review

GREAT GENERATOR

I purchased my generator 2 years ago & while it was a big investment, I very happy with it. Prior to the 2024 election, I kept hearing the grid is not stable & they kept cautioning about the threats to the grid by enemies of the State. I had been contemplating & researching “standby” generators for a few years. Most that you see advertised on line will not actually power your home. I researched the numerous whole house generators & Generac kept coming up with the best ratings. The next thing was to find a reputable local dealer; which is exactly why I chose Ryan Electric in Springfield IL. Be aware of the big box stores, as they may or may not be the ones that actually install & maintain your generator. I have heard from friends that the big box stores often hire contractors from out of “your” State.

Review from generac.com
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Jul 15, 2026
Reviewer name: EJC24
5 out of 5 stars
5 out of 5 stars review

Great performance

Generac 22kw generator was installed on June 17. Our power went out July 3rd until July 5th, 40 hours. The Generac kicked in immediately and allowed us to keep lights and AC on and stove, water pump, water heater and more running the whole time, with 9 people and four dogs in the house.

Review from generac.com
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Aug 10, 2026
Reviewer name: mickeyprint
5 out of 5 stars
5 out of 5 stars review

Great machine and Great Peace of Mind!

I purchased this unit in August of 2024 and to date, it has performed flawlessly. We've only had one brief outage but it ran then and runs every week for 10 minutes to exercise. The Mobile app gives me all the information I need at my fingertips and is easy to navigate, even for a 68 year old!

Review from generac.com
Helpful?4J7FW5DJ5Z5113606214426