re: Those with 2 story raise houses

I have a 105 yr old home I renovated this yr. First winter here. I was waiting to insulate the floors until winter (you should not insulate in summer if the AC has been running) and didnt get to it. This is the first time I've had an issue and it still hasn't gotten under 60 on the first floor. If your insulated and at 50, I would be concerned with having some other issue.