- Dec 5, 2005
- 2
I have recently removed my DESA 36" prefab zero clearance fireplace and I am installing a fireplace insert. I had a mason friend come in and build up the area behind the hearth with block, and then we finished it off with firebrick. I now have fire brick under, and at least 8" masonry around the sides. The prefab was using double wall(12" and 8") flue pipe. My question is, can I just extend the existing pipe down to the fireplace insert, or do I need to use triple wall, or am I way off here? What I DON'T want to do is burn my house down. Please let me know if anyone out there has done this, or attempted this and let me know your ideas. Thanks in advance.
Travis
Travis