Hi there ,I am new to the forum and my name is Dave and I have a few questions about the Jotul combi #4 I have. I have been using this stove for about 10 years to heat my small farmhouse and I love it. Originally I had the pipe go up about 6 inches and then 90 out about 4 and a 1/2 ft to my large 10 inch steel chimney which worked ok but the draw was pretty crappy until the stove warmed but it held a fire for a long time. I have since changed the configuration to insulated stainless straight up through the roof with no elbows but now my heat is going out faster and the fire doesn't hold as long but no smoke back at all. someone suggested to me to put another damper in it but I don't really like that idea because of potential soot catching and buggering up my cleaning process. My thought was to slide the stove forward about 10 inches and put a clean out T on and then run a short section to it where in 90's out of the stove to slow the draw a touch and keep the heat in a bit longer....will this work ?,,or will the 10 inch run be too short to accomplish my goal? My other question is finding firebrick for this stove as I am missing some and cannot seem to find anything online,or any other source for curved firebrick. I may have to make my own and if so maybe some tips on that.