Double Wall Pipe VS. Wall Heat Shields

[LEAK]

I am planning out a new install for a Drolet Austral III and need to reduce the clearance with either double wall pipe, or wall heat shields. Which method is generally preferred? It seems to me, using double wall pipe indoors would be a waste of radiant heat from the exhaust.

Austral III manual: https://sbiweb.blob.core.windows.net/media/5710/46142a_23-04-2020.pdf

 

[MongoMongoson]

Use double wall pipe. You are supposed to heat with the stove, not the pipe, right?

If for no other reason, use it because it accumulates less crud and the crud that does condense on it is easier to bush off. It is shiny stainless inside rather than plain steel that gets rusty and rough. Use a plastic brush or soot eater on it, not a metal brush.

I did not like double wall, at first. It was the chimney pro that installed my chimney that convinced me to use double wall. I did the stove and stove pipe install, he did the chimney install. He convinced me by "giving" me some double wall stove pipe.

Now, I would not go back to single wall... at least not in this house. 12' ceiling means a long run of stove pipe to get to the chimney.