JRemington
Minister of Fire
We install adapter T,s with a clean out on all of our inserts. Our liner kits come with them.It’s pretty rare to have a clean out Tee behind an insert. I’ve seen it but I don’t usually do them that way because on most units I brush the flu through the blower housing, and a lot of inserts that have a horizontal exhaust port are so low to the ground that there isn’t room to take the clean out off.