Do you have access to the applicable electrical codes and understand them? There are some very specific things that need to be done to size a generator.
I haven't purchased a generator yet, but I was considering purchasing a 10k generac (5883 ) or a 14k generac (5884 ). The reason I was considering this route is I want to power all the lights and outlets in the house, plus the furnace. Based on my calcs, it should easily be below 10k even with most things running ( i figured I didn't need to run the oven/dryer/hw/dw/etc) It was more a matter of circuits that kw.
What's the "t1" line to the generator for?
You might be well advised to get a competent electrician involved in the project, as you will probably need to pull a permit and have the job inspected at the end. Getting everything right the first time really pays off in my opinion.
I hired an electrical firm to ramrod my installation, but I did a lot of the work including replacing a paid second electrician with my own work. I saved over $3000 from their original quote. In addition to saving money out of pocket, the job is done better than what the contractor would have done. For example, my installation of the 75-foot conduit run through our basement is a [U]lot[/U] neater looking than the exposed cables that the contractor would have run through the ceiling joists. I could not have afforded having them do the carefully thought-out and carefully crafted run of conduit which was necessary for my wife's approval.