Ya I had to put all new duct work in and new furnace and the guy that put funace in told me what duct work to get
Just making sure I'm doing this right
Another quick question, to find how much cfm a room needs in taking LxWXH taki,g that number times the air change in an hour. And then dividing by 60 it that how to find the cfm per room ?
Hi all. For some reason I ran a 6 in duct off my trunk line to my up stairs bath room. I only need 35 cfms not the hole 100. Instead of tearing out that duct run can i just add a damper after my take off?