I upgraded my Generac Guardian generator from 15KW version to a 22KW version (due to load increases). I have to say I am pleasantly surprised on the quality of power being delivered. The old generator fluctuated several hz (+-2 Hz) and had a hard time holding a steady voltage. We are using this generator to power a small data center, power quality is important as UPS don't like dirty power. This new generator holds voltage steady, the frequency is within +-0.1 Hz. Even when the large roof top air conditioning unit kicked in, the generator powered up and recovered the correct voltage and frequency within a second. The power monitoring is also a nice touch. Now I know when we loose power and if the generator kicked in or not. Although the old unit mechanically was working fine, visually the case was metal and rusted heavily. This new case is aluminum so we are expecting no rust.

Overall a very good product and value. I installed it myself and the process was straight forward and intuitive. The only recommendation I have for improvement involves access to pulling and termination of the power wiring. I installed the 22KW unit - largest in the series - 100A wire. Based on the conduit opening size and location, pulling this size wire and landing it was not an easy task. Making bends where it entered the unit in relationship to the internal equipment shrouds located nearby was quite difficult and routing the wire to the termination points requires a contorsionist. Otherwise, this is a nicely designed unit.

We had a 16 kw Briggs which burned up during the August, 2016 floods. We moved up to a 22 kw Generac in hopes that we would see an improvement in both performance and reliability. When our electrician started pulling more wires than the B&S needed I started questioning him. Seems we can delay our A/C and save the generator, and home system, from the serious re-lighting strain. Ya learn something new every day and Generac certainly is proving that quality has no price !

Our power went out and the generac cut on within 3 sec, as the contractor said it would. It did make a loud clunk sound when it cut over, and the generator does make some noise. The clunk sound woke us and the dogs up, and the generator is close to a bedroom, so it did disturb our grandson. The cut-over box (on the outside) is just outside my bedroom, so explains why it woke us and the dogs. Other then that, it works great, and a small price to pay(being woke up) for keeping power on. I love the looks. Contractor was very thorough, and helpful. We needed a new elect panel, so he took care of it. Also needed a larger gas meter and line put in, and he made all the arrangements for us, with our permission. I highly recommend this contractor. We have a neighbor that has a young child, so happy it has locks on it. Our town is known for power outages, so very happy we had it installed.

We are very pleased with our purchase and the installation by our electrician. Fortunately we have not needed to use it yet. It does run every Sunday on time like clock work. It has a very nice appearance much nicer then our house a/c unit. We would definitely recommend this generator.

The generator has not been called on to serve as emergency power yet. It does run once a week to "exercise". The unit is louder than I expected it to be from the DB rating you publish. That said, it is much quieter than my old 5Kw portable generator and I have your 22Kw unit. I am glad I went ahead with this project. One of the reasons I moved forward was the no cost extended warranty.

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.

Professionally installed unit and all of the piping/wiring. they did a great job. the unit recently ran for 6 hours when power was lost. it was great to see our lights, heat and well running while others were in the dark. glad we made the investment. love the mobile link feature.

This is our 2nd Generac . We have one for our cabana and now a new one for the house. Oklahoma winters can be very harsh with lots of icing occurring on power lines. For convenience, we added the second Generac for the house. This is a great reliable product.

Generac was just installed. Very pleased with the end results. Man . . . who knew the amount of work necessary to have wired into my 200 amp electric box. It was done first class and to inspection standards. Great peace of mind!!! Very quiet running!