Quote Originally Posted by jimj View Post
Is 70* the temp you want to maintain? If it's 72* thats a Hank R. do not do.
I would cut a hole in my sheetrock and check R values before I would assume no insulation in my calcs.
What does Manual J use for your area? don't add degrees to YOUR design temp!
Go here and read Proctor info,http://www.proctoreng.com/articles/better.html
Hank R.?, what's that mean?

Based on my current system I am comfortable at 72 degrees so that would be the temp that I want to maintain. Again my current system could be oversized and with a hopefully correctly sized system I may not need to keep the stat at 72 degrees. More questions for the contractor I guess, thanks for your input.