I upgraded to the 22K size to do my whole house. The smaller sizes would only do part of the house but the price difference wasn't too big. Overall, I do feel the price was too high but part of the reason is the installer had to come from the big city to my small mountain community. In less than a year since installation there have been several power outages, some lasting many hours. The unit has worked flawlessly and my whole house runs normally, with only a 30-second delay while the generator turns itself on automatically. My only complaint is the remote monitoring offered by Generac, at quite a high price. It doesn't have enough features or control capabilities, and I couldn't find a 3rd party monitoring solution that would work better without spending many more hundreds of dollars. I would reluctantly pay the Generac high price for monitoring if their system had better functionality. Now i no longer dread the inevitable power outages and I would recommend the 22K Generac.

Product is an insurance policy making sure you have power when a failure occurs. Installation prices are high and some installers want almost as much to install the unit as the unit cost. When power fails, the unit is automatic and restores whole house power.

Professional interaction with installer, Spectrum electric. They know the Generac product and how to install it inside and out. Only one instance of power outage since installation. Generator performed perfectly for approx 1.5 hours during outage and kept house comfortable including heating units operation. My only complaint is that the unit is noisier than expected and location between houses amplifies the noise during operation.

Got the unit about 11 months ago. Haven't had any power outage yet. It runs once weekly as it's supposed to. I did turn off commercial power a few weeks ago to test. Couldn't do it long enough to test the power shedding to the furnaces. But no issues yet.

This is my second full house generator, our first was 5 years old when our house burned down and we lost the first one. The fire got so hot, it was the oddest thing, the case was intact but the motor and generator inside was a puddle. I travel a lot for work, we live in the country so if we have no power we have no water. Bought it for my wife, we had a snow storm this past year and lost power for 4 days, she ran like a champ

Good product. Very good documentation. Installing a generator and transfer switch was a lot of fun for me. There is plenty of reference material on the web to help size gas pipe and wire and conduit. I used all 600 volt rated wire in pvc conduit. I was not impressed by the multi conductor cable that dealers were quoting. I'll be able to do all maintenance on the unit. Hopefully I won't need any warranty work.

We have the 22kW Generac running the entire house. The system does its maintenance run automatically each week. Our first power outage lasted 43 hours. We checked the generator oil after 24 hours and it was fine so we turned it back on. Our propane consumption during that period was appriximately 0.8 gallons/hour. We were using the electric oven when the power went out and, while we could see the lights go down for an instant when oven element kicked on, overall the house power worked perfectly.

I did my homework prior to my purchase and the only negative thing i could find is that it was loud when running under a full load. Well, i decided i could sacrifice noise for comfort and let me tell you, I LOVE IT!!!!! This unit runs my entire house without fault!!! I HIGHLY, HIGHLY RECOMMEND THIS PRODUCT. When my Father-in-Law saw i had ordered one, he too got on the band wagon and is very pleased with his as well. We both loose power quite often and as far as i am concerned, it has already paid for itself after multiple power outages. Don't loose any sleep over deciding, GO GENERAC OR GO BROKE!!!!!

We spent considerable time studying whole house standby generators before making our choice of a Generac. Our primary concern was reliability and we could find none better than our 22K unit. We live in a rural area and are subject to electrical power outages more frequently than most. Our system has started each and every time our power is interrupted and our essential home services are restored within seconds. This has included starts and power generation in snow conditions. The unit is quiet when running and difficult to hear unless near the windows and wall overlooking the set. Our unit is fueled by propane from a dedicated tank and both the tank and generator are easily concealed from front or side exposure by a low picket fence and shrubs. Access to the unit is secured by the set's internal lock yet access is quick and easy. Service areas are easily accessible. The control panel is informative and displays service requirements. The transfer panel is in keeping with panels normally found at home electrical service entrances. We would recommend anyone considering a whole house standby generator to look closely at Generac's offerings.

I purchased the first unit for our home and a second unit for our cottage, about a month later. The units are performing great, they are currently set to cycle on for 5 minutes once per week. Had one very short power loss at our house and the generator did its job. It started within seconds of the power loss and shut down promptly after the power was restored. I am very satisfied with the design of the unit and the installer did a great job!