Ceramic Fiber Blanket Insulation 2600F, 1"x 24"x 31" Baffle Fire Blanket for Stoves, Furnace, Kilns, Fire Bricks, Boilers, Kilns, Blacksmithing

This stuff is great. I used to insulate an exhaust pipe going through a wall. One inch of the insulation was enough to protect the wood and plastic in the wall. I notice the exhaust pipe was close the wood box the engine was running on so I installed a piece of insulation between the pipe and the wood to fix that issue. You need to wear gloves and eye protection when using the insulation. It is similar to fiberglass insulation. The fibers are easily disturbed.