BaldLoonie,
I'm not sure either about the contractor. He does a lot of work in my area and I do trust him. Only thing is he doesn't do his own load calc, he gets someone else to do it. The first contractor stated 3.5 tons, which seems a little closer. I had just blindly asked another about 3.5 and he said he wouldn't even put that in because he knew it would not be enough. Is there somewhere I can go to get a load calc done that I can truly trust? I want to make damn sure I get this right, since it is a big cost and will determine my electric bill as well.
dan sw fl,
I'm in central KY (Danville) My windows have U value of .30 and SHGC is .42.