double wall to single wall

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grh372

Member
Jan 5, 2015
32
western mass
I'm looking to see if theres an adapter to take my double wall 3" pipe that terminates outside to a cheaper more cost effective single wall pipe to go up 2 stories above the roof?
 
Try your automotive supply.
The major problem with a single wall outside pipe will be that the gases will cool and then freeze and plug unless your in a area that does not freeze so with that said and your from Mass. it will not work or pass code if inspected