Part Number: 18100
eFireplaceStore Item Number: CPF-18100
Thermix insulation is a ready-mix compound that you mix with water and pour in the space between the liner and the masonry chimney. This creates a UL 1777 listed zero clearance insulation that is recommended for use with Ventinox VG, VFT and HiFlex liners as well as other HomeSaver relining pipe. A pour-in insulation can be used when space is too tight to install a blanket-style insulation. One bag holds 2.4-3 cubic feet of mix and weighs approximately 44 lbs.