You may require a thimble for your installation.

Use a thimble if your connector pipe has to pass through a combustible wall and into a masonry chimney. The unit is sold in two parts. The thimble, and the thimble cover assembly.


Should I insulate my liner?
You should definately insulate your liner if you have the room. Why? With a wood or coal stove you will lose a lot of heat up the chimney. When hot flue temperatures meet with cold temperatures it will create condensation. When flue gases meet with condensation the result is creosote. By reducing the formation of creosote you will lengthen the life of your chimney liner. Keeping your chimney liner warm will also keep the draft consistent and will improve the performance of your stove.

Maintenance for Wood and Coal vented Liners
You should have the liner inspected and cleaned every season. This will ensure your liner to last a lifetime.