Take this little bit of advise from a guy who tried the Generacs!
RUN, DO NOT WALK AWAY!!
They are completely overrated in what they say they can run! I had a total of 4 of them and could not get anywhere near the 14 amps they were rated. 11 was the best I could ever get. I sent a ton of information to Generac and the best they could come up with was to buy a big industrial open frame! Total waste of time!! I got pair of Honda's and now am happy as can be!! Will run everything I want with amps to spare.
Here is the thread on my ordeal. Read it and decide for yourself
Generac Beware Chris