Digging right into it! My current set up is a fire place and obviously puts out zero heat! So I bought an old lopi insert that fits perfectly into the hole! Issue is my clay liner is 12”x8” and my flu outlet on the wood stove is 8”. So if I knock out the clays will there be enough room for a 8” flex liner with insulation?? Or do I need to hull this beast out of my basement and find a 6” insert?? Thanks I’m advanced



