Wood stove flue material selection

ROCKFORD CHIMNEY SUPPLY

You can order everything from them in one purchase.
You need to measure everything twice or three times
to make sure you have all your pipe, elbows,
pipe stand offs and rain cap accounted for.

You also have to have your flue pipe 3 feet above
the highest roof peak on your home.

If you have a lot of trees near your home you may
need a Vacustack to help increase your chimney draft.

First of all, a 'medium' stove with an 8" collar means its an old polluting clunker banned by the EPA. Get yourself a modern clean burning efficient stove. Next, read the instruction manual for placement of the stove esp. clearances to combustibles. You can go through the CMU block wall with a modern listed double walled stainless-steel chimney listed to UL 103HT. If it's a newer stove, it will be 6". You will need all the attending supports, stand-offs, elbows, etc. Get the listed termination. Vacu-Stacks are designed for wind problems only btw. Check the manual for minimum chimney height in total meaning from the bed of the fire to the flue gas outlet AND the code required 3 ft above the roof junction plus 2ft above any point within 10ft horizontally. I strongly recommend you have a pro do with work. As for the connector, use double walled close clearance pipe with a stainless-steel inner liner. Get a magnetic thermometer and moisture meter. Break in the stove PMI.
There is a federal tax credit running of 30% of the total installed cost up to $2K on qualifying stoves. A stove needs to meet a Higher Heating Value of 75% or higher. That invariably means it will have a catalytic combustor. Otherwise get a non-cat stove. Regardless, stuff it full of wood and let it rock & roll. Do NOT allow a small, smoldering fire. Notify your insurance carrier and check with your municipality if a permit is required.
HTH

Hello ayetchvacker,

Is your 1983 Porcshe 944 carrying a 5 cylinder Mercedes Benz gas engine with a BOSCH turbo charger?