Is the only reason for the double wall pipe for clearance amd through the wall?
How much clearance is needed for single wall pipe?
I was thinking I'm going to use a 4ft rise inside the home and exit through the wall so I was thinking the only double wall I need is through the wall.
How much clearance is needed for single wall pipe?
I was thinking I'm going to use a 4ft rise inside the home and exit through the wall so I was thinking the only double wall I need is through the wall.