My wife is huge fan of wood burning stoves and she bought a used VC Encore that we plan to install in our basement. I want to make sure that we do everything properly so we don't go down in flames We have a brick chimney that starts off in the basement, goes up above the roof (about 3') of our 2-storey house The chimney is about 8"x8" for most part except for the basement section which is narrower as one side of the chimney seems to be standing on the top of the basement wall. So in the basement I would say the chimney is only 6"x8". Up until now we used to have the natural gas furnace and HW heater venting through it, those units have been replaced by a new tankless combi unit that vents through the wall and thus the chimney is not used by anything for now. The chimney does not seem to have a clay liner in it. Before we moved in 3 years ago- based on the inspector's report- the chimney has been lined with a 6" flexible liner with no wood burning stove in mind, just to vent the natural gas furnace and hot water heater. It's definitely not double walled liner and I'm not even sure if it's steel or aluminum. Question 1: How can I tell if this liner is suitable for venting our stove? Our VC Encore has a 8" oval exhaust, but I bought a 8" oval to 6" round adapter so I can use 6" pipe to the chimney. Question 2: Is it Okay to vent an 8" stove through a 6" pipe/chimney liner? About the stove piping: I was thinking of using a 45 elbow to route my pipe to the chimney, I'm just not sure in what angle do I have to hit the chimney wall. Question 3: Can my stove pipe hit the chimney wall in an 45 angle or it has to be perpendicular to it? any input is appreciated.