Selkirk-Metalbest Metalbest 48" Long x 12" Wide x 2" Thick Universal Shielding Insulation

48" Long x 12" Wide x 2" Thick Universal Shielding Insulation Add this part for increased performance and safety. Optional insulation for use with the Support Box, Attic Insulation Shield and Insulated Wall Thimble. The SUSI protects building materials against radiant heat from the chimney and helps maintain temperatures within the chimney system. The SUSI also stops air infiltration into the dwelling. It is the only insulation approved for use with the MetalBest Chimney System. The Sure-Temp Chimney Sys...