When It comes to insulating your chimney liner, the pre-insulated variety is far and away the best option for the task. Pre-insulated chimney liners save hours during the install and alleviate the aggravation of wrapping a long liner by yourself. The outer stainless steel liner ensures the required 1/2" Super Wrap insulation stays exactly where it needs to be even when navigating tight flues. They cost a little more but they're worth it.
If you need to insulate an existing chimney liner or require pour in insulation mix please head over to our Insulation Station