I am helping someone install a Fisher knock off stove and would like to get a little help. I've tried to do some research here and elsewhere to guide me. But I still need to clarify some things for the conditions and material availability. Conditions: > Chimney is about 5 years old with little use and has been cleaned. > 7X11 clay flue liners and an 8" clay thimble through concrete foundation wall > Stove is in basement > No interior framing/combustibles between wall and stove, at slightly over 18" from wall. > Stove has a 6" flange to attach stove pipe to welded into the top. > Chimney seems to have a very strong draw Our thoughts: > Use 8" single wall pipe inside thimble, sticking 3/8" into 7X11 liners to keep creosote from coming down and into 8" pipe. Extend 8" to inside of foundation wall, seal with furnace cement. > Use 8x6 increaser, with 6" to stove with just one 90 degree bend and a damper > Run pipe with crimped ends towards stove > Run pipe so seams are not at bottom of horizontal stove pipes so as not to be in creosote's path > Place three screws per joint and seal with furnace cement > Place damper in vertical portion of stove pipe Questions: > Is this thimble connection good or is there a better method? > Increasers available locally are concentric, shouldn't they be eccentric/offset so creosote would flow on bottom and not get damed up at the 8x6 transition? > 8" crimped X 6" female increaser could be crimped on the 6" side to maintain the correct flow, is there a way to take the crimp out of the 8"? > 6" flange out of stove fits closer to going inside of stove pipe than out. Should we put an extra pointed crimp on the stove pipe to get it inside, to keep the crimps toward the stove? > Furnace cementing the joints won't hurt anything? > The damper goes in the vertical portion of the stove pipe, correct? Thanks in advance.