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Guardian 3-Phase Air Cooled w/WiFi Connectivity 20000 -Watt Dual Fuel (Liquid Propane/Natural Gas) Home Standby Generator

Ratings & Reviews for Generac Guardian 3-Phase Air Cooled w/WiFi Connectivity 20000 -Watt Dual Fuel (Liquid Propane/Natural Gas) Home Standby Generator

4.8
3323
Review
 4.8 out of 5
3323 Reviews


97% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The Generac home generator is a reliable and dependable product that provides convenience during power outages. Many customers report the generator has performed flawlessly, automatically powering their entire home. Key features praised include the automatic transfer switch, WiFi connectivity, and quiet operation. While a few customers experienced issues with defective parts or long repair times, the majority of reviews are overwhelmingly positive about the generator's quality and performance.

Customer review summary generated by AI, including incentivized reviews.
3323 Customer Reviews

Excellent home improvement project

I bought this a year ago and we had an outage a week later. Worked great and during 2 other outages. Installation was quick and fairly easy for the vendor. Saved us from cold days and loss of money from spoiled food.

June 18, 2026

From generac.com

I bought this a few weeks ago, already storms have gone through on two different occasions and knocked out our power. The generator has preformed flawlessly on both occasions, running for approximately 23 hours total for both occasions. My neighbors are jealous

June 18, 2026

From generac.com

Love my Generac

Would Recommend

I had this unit installed last year. I am so glad I did, and as a widow, it has removed a lot of my stress when the electricity goes out. My knowing that the Generac unit will come on in a few seconds is such a comfort to me. It will run the whole house, lights, A/C or furnace, appliances and the garage door.

June 18, 2026

From generac.com

A Work in Progress

Side panels are misaligned. Cover does not lock. ??????????

June 17, 2026

From generac.com

Response from Generac Support

We’re sorry to hear you’re running into issues with your unit, that’s certainly not the experience we want you to have. Side panels appearing misalign...

Generac SupportJune 18, 2026

Satisfying to spend money on a great product.

Within ten days of the initial startup, we had our first power outage on Memorial Day afternoon. within ten seconds or so, our whole house was up and running on our new unit. It was a great feeling. A/C up and running, everything. It gave us a great feeling.

June 17, 2026

From generac.com

Good whole-house generating package.

The Generac 22K whole house generator and switch gear is a reliable unit and was given good references by the electrical contractor that I sourced and installed it though. It is a little noisier than what I was told and I have had to let the neighbors know that they will likely hear it exercise running weekly. It could be muffled down more with a few additional low cost sound reduction improvements.

June 17, 2026

From generac.com

2 weeks after installation we had a 61/2days power outage and it was wonderful.

June 17, 2026

From generac.com

Impressed

Installed for a month and so far very happy with the entire process including the Generac recommended installer.

June 17, 2026

From generac.com

Great

Would Recommend

I've had this product over a year and I've been very satisfying

June 16, 2026

From generac.com

Excellent stand buy gen

Would Recommend

this is my second generx 22k whole home wouldn't be without

June 16, 2026

From generac.com

Piece of mind

Had it installed a few months ago and have not worried about a power outage since. Great piece of mind especially with all of the storms happening this year.

June 16, 2026

From generac.com

Would Recommend

This is the 2nd General I’ve owned I believe my issues are dealer related and total lack of support

June 16, 2026

From generac.com

Response from Generac Support

We’re very sorry to hear this has been your experience, especially after owning multiple Generac products. We understand how frustrating this must fee...

Generac SupportJune 16, 2026

We Got PREPARED!

After SoCal Edison left us without power for 19 days in 2024 and had surges that destroyed our switch panel and side-by-side refrigerator / freezer we updated to the new 10 KW unit with all electronic panel and surge system and new UPS for our computer system. We also added a whole house insurance program and a service / monitoring system / account for our generator. So far we are very happy with our choice to upgrade our system.

June 15, 2026

From generac.com

Would Not Recommend

has never gon a year without not starting. it needs to be repaired constanly.

June 15, 2026

From generac.com

Response from Generac Support

Thank you for sharing your experience. We’re sorry to hear that your generator has required frequent repairs and has not consistently started as expec...

Generac SupportJune 15, 2026