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Chimney Insulation Materials TherMix View TherMix TherMix chimney insulation is UL Listed with many brands of chimney liners. It is mixed with a little water and poured in the space between a stainless steel chimney liner and the inside of the masonry chimney. Its patented formula was designed to maintain a consistent liner temperature and to help prevent heat transfer through the masonry chimney that might ignite nearby combustibles. TherMix also adds to the structural strength of the chimney and sets up semi-hard. View All Chimney Insulation Materials Foil-Faced Ceramic Chimney Insulation View Foil-Faced Ceramic Insulation Our Foil-Faced Ceramic Chimney Insulation is UL Listed with Ventinox chimney liner. It is constructed of ceramic fibers and withstands high temperatures. ProFoil is applied to the stainless liner with adhesive, covered with mesh and clamped to the chimney liner. The liner is then installed in the chimney. View All Chimney Insulation Materials  Unfaced Ceramic Blanket Insulation View Unfaced Ceramic Blanket Insulation The Unfaced Ceramic Blanket Insulation doesn’t carry any listings but is commonly used for stuffing areas in the firebox, damper, smoke chamber and around masonry thimbles. It is also often used to replace ceramic blanket on woodstove baffles. View All Chimney Insulation Materials Saf-T Wrap Insulation View Saf-T Wrap Insulation Saf-T Wrap Insulation is UL Listed with Heat-Fab Saf-T Liner. It consists of an aluminum outer shell with a ceramic blanket glued to the inside. It wraps around the liner and the seam snap-locks together like a snap-lock pipe. View All Chimney Insulation Materials