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

Peace of Mind

I had this installed the end of March and have already had one brief power outage but the generator started within 2 minutes! This is truly peace of mind.

Worked flawlessly during each power outage

I bought the 24kw unit with transfer switch from Select Generators in late April 2025. Install went well but had bad oil leak during 3rd hour of the 25 hour break-in period. Dealer and Generac replaced the engine. Since engine replacement the unit has worked great. Only had a few small power outages since install and the generator worked flawlessly to restore home power during each outage. Will see how it does with the 2026 hurricane season. The mobile link is also useful to see hour usage...

Poor choice on my part.

We purchased it about 2 years ago and it pretty much has failed us when the need arises during storms or other weather in climate conditions. This was bought because I have a cpap machine and need it to sleep. Also to protect the contents of our freezer and fridge.

Great generator

We bought this unit and it well run our house and garage… now if we loose power my oxygen machine we’ll still work so I have no worries

Very nice and easy to understand operation

Very happy with our Generac 22kw generator that was installed

Awesome product

Very happy with the generator.No more worrying about loosing power.Best investment I have ever made.I have never been happier.

Great unit

Best investment we ever made. Through these last storms always had power and very reliable

Well spent money.

Love my new Generac, I feel so much better knowing that I’ll have power during a power outtage. I live alone and it has given me a great security knowing I’ll taken care of. The guys that installed it was fantastic!!! Very VERY professional. I highly recommend GTI Generac power systems.

This month will be 1 year since activation of the unit. Expecting the installer to contact us for maintenance, but so far, nothing. Maybe they will contact in the coming weeks of May.

great features

satisfied all around except noise level xxxxxxxxxxxxxxxxx

Great upgrade/replacement

I bought this a month ago to replace my 21 year old 16K unit that had developed a gas leak. Didn’t want to invest $1400 in repairing that Old of a unit.

we have had a couple of storms since installation and while we did not need the generator it was a relief knowing we had it.

I've always been impressed with Generac generators, so they were my only desire when we were financially ready to purchase a whole house emergency generator. We have a DD/ID adult son, so having one was important to us for his sake.

Peace of mind

I wanted a whole house generator when we built the house and now that we have done that, I feel safer

Very satisfied

This is the second home that we’ve installed with the whole house Generac generator. They run quietly switches seamless very dependable.