Getting together a list of what DuraVent DuraBlack parts I’ll need to hook my Drolet Heatpack to the chimney (yes, it’s gotten a new liner) and am a little confused on just what I’ll need. I know I’ll need 2 - 45° elbows and a T for the barometric damper, just not sure if I’ll need an adapter to attach the 45 to the flue on the furnace or at the wall. Also a bit lost on the telescoping sections, would be nice to use one so I don’t have to cut but not sure exactly which pieces I need to make it work. A possible factor is that the furnace is only 30” from the flue coming out of the wall, the tee will take up 10 of those inches. Have some pics and a crude drawing for reference. Hopefully this thing will heat the house like I hoped the fisher would. It’s a little chalet (32x24’) with a loft, mostly open, and a basement. There are definitely inefficiencies with the house (one wall is almost all glass and the other windows are old metal frame janky ones) that will be addressed in the future, step one was to try getting the heat out of the basement more effectively hence the upgrade to a wood furnace.