Purchased the model #6551 22kw system for my new house. Power interruptions in our area are typical and storms can bring outages that last for days. Haven't had a serious outage since installation but the unit cycles once a week for self-check. During installation the unit checked out against a full house load. My four star rating on features is due to the engine noise. Better muffling could help. During self-check the unit runs at a lower rpm and the noise drops by half.

FORTUNATLY,THE WEATHER WAS KIND AND THE GENERATOR WAS NOT NEEDED.HOWEVER,I WILL LET YOU KNOW THIS SUMMER IF I THE PRODUCT PROVES ITSELF,ONE WAY OR ANOTHER. I WOULD ALSO ADVISE THAT THE ELEVATION BE CONSIDERED BEFORE INSTALATION.IN MY CASE,A HEAVY RAIN MAY FLOOD THE LOWER PART

We were out of town when the only power outage we have had since we purchased the generator occured. However, it appears taht the generator did operate during that outage. Our primary feelings is that we know we are prepared in the event of a long outage.

Mine is a whole house generator connected to the house electric system. It is scheduled to exercise once a week then send me a text and email. It does so without fail. I haven't had to actually use it in a power outage yet, but I am confident it will perform as it should. The recommended installer did a great job.

Thankfully,we have not had a power loss yet. But it's working.Every Friday at the exact minute it runs through it's test for 5 mins.to the second,then shuts down. It's given us great confidence that it will be there when needed. And already gave recommendations to family and friends. 22KW Guardian

I had no idea that a good quality standby generator that can automatically and easily power up a whole house could be installed for well under $10k. We are impressed with both the service and product and sure enough, shortly after installation we had a power outage. This occurred during really nasty weather and from the comfort of our house it picked up the load very quickly and shut itself down when the power was restored. My wife couldn't be happier as we used to do this manually, having to brave the weather in order to get standby power.

This top rated product the generac 22kw whole house generator gives you worry free performance and a warranty . The installation was quick and easy . Shore power made the process seamless and quick ( installation took a day ) . No more worrying about power outages again . I would recommend this product !!!!

This is my second generac unit. The new one is much better than the first. The steel case on the first rusted very quickly here in S. Florida. The battery charger on the new unit was a terrific addition but did require some new wiring that the first unit didn't need. So far no problems (in use for six months).

This is my 3rd home and my 2nd whole house generator. Never had one issue with the installation or operation. When I sold my 2nd home, the whole house generator was mentioned by the buyer as the reason they purchased my home. Value, confidence and security are instantly added.

My new Generac whole-house generator eliminates the need to refrain from using heat/air during a power outage. Much more convenient. Also, the new plastic housing eliminates the serious rust problem we experienced with the prior metal encased unit. And finally, no more replacing the battery every year. The new charging system has come into the modern ages and does not charge all the time until the battery explodes. Like an iPhone or other device, it only charges when needed and stops at full charge. Overall, I am well-pleases with the new, larger unit and find greater peace of mind in ownership.