5 DuraTech Wall Thimble

Adjusts from a minimum of 4" to a maximum of 10" wall thickness, and fits between standard wall studs. To accommodate thicker walls, the telescoping pieces can be extended up to 16"with a field-fabricated extension installed. Interior trim ring painted black. Must be installed with DuraTech chimney pipe horizontally through the wall and extend 6" into the room beyond the interior wall. 6" and 8" stainless steel exterior trim available.

DuraTech is a double-wall, all-fuel chimney system for used with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters or other appliances fueled by wood, oil, coal or gas, and zero-clearance fireplaces that are factory-built. This system is designed for normal continuous operation at 1000 degrees flue gas temperatures and is subjected to rigorous and stringent HT requirements of the UL standard ensuring its excellence.