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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
3106
Review
 4.8 out of 5
3121 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.
3121 Customer Reviews

Reliable during a 4 day power outage

Would Recommend

I bought my 22KW wifi enabled unit in April of 2024 along with a service contract from my authorized installer. For the 18 months the unit reliably performed its weekly check run along with providing power during half a dozen power outages that typically lasted from 15 minutes to 2 hours. Many times I didn’t even know the generator turned on and only found out in the monthly email report. Then we had a bad snow storm in March 2026 that knocked out power for nearly 4 days. The generator ran f...

April 22, 2026

From generac.com

Great investment!

Living in Maine we experience the uncertainty of power outages. We are retired and the ease and peace of mind during storms has been wonderful. Wish we’d invested years ago.

April 22, 2026

From generac.com

Would Recommend

So glad that we purchased this product. We live in a rural area prone to power outages.

April 22, 2026

From generac.com

Best Home Purchase

Would Recommend

I have had my generator for 1 year. Love it. Great investment. Peace of mind just knowing that it’s there. I have used it a few times, generator comes on seconds after a power outage. My home functions don’t skip a beat during a storm. Definitely recommend.

April 22, 2026

From generac.com

Happy With My New Generac Generator

I am very pleased with my Generac generator. The sales, installation and support processes have been stellar. I feel very confident that when the power goes out that we will be protected and safe with our Generac generator.

April 21, 2026

From generac.com

Generac Home Generator

We purchased our generator in March of 2026. Although we have not had a need for it yet, we are confident when we do need back up power it will work as designed. We were very happy with Storm Electric who did the installation.

April 21, 2026

From generac.com

I have not had this product long enough to reply

Great features but I need more time with this product to give a responce.

April 21, 2026

From generac.com

Autostart system!

Would Recommend

I bought the 26 kw generator 1 year ago and I used it twice. It has done well to this point with no problem!

April 20, 2026

From generac.com

Great features and plenty of power

I've had this unit for 3 years and it has been terrific It takes care of the whole house

April 19, 2026

From generac.com

Good unit

I purchased to replaced my old one due to mechanical failure. See my comments in the beginning.

April 18, 2026

From generac.com

Nice product

Would Recommend

I purchased this 22 W backup generator about a month and a half ago and hope it works when I really need it. The installation went well and on time however I was not given any instructions on how the generator works or what I should do other than calling them if there’s a problem, I was given no information on how to set up the monitoring app on my cell phone at all so I have it on and I guess it’s OK but that’s about it.

April 18, 2026

From generac.com

Bought 2 months ago and not satisfied ,Contractor had to Come 4 weeks straight to deal with low fuel pressure fault/shutdown during weekly exercise. Not very confident that generator will work properly during loss of power due to these issues Contractor who installed where outstanding

April 18, 2026

From generac.com

Response from Generac Support

We’re sorry to hear about the ongoing issues you’ve experienced—especially so soon after installation. Repeated shutdowns due to a low fuel pressure f...

Generac SupportApril 22, 2026

Best purchase I ever made

Would Recommend

We bought this a year ago or more and I am very happy with the performance. It does what it’s supposed to do.

April 18, 2026

From generac.com

Reliable

I bought a month ago, installed yesterday. Works great

April 17, 2026

From generac.com

Whole house backup power

Haven't had any lengthy power outages since installation. Yet to undergo any lengthy running episode. Wifi not very reliable regarding connectivity and usability.

April 16, 2026

From generac.com

Response from Generac Support

Thank you for sharing your feedback. While we're glad to hear your generator hasn’t needed to handle a lengthy outage yet, we understand your concern ...

Generac SupportApril 22, 2026