The DuraTech Wall Thimble adjusts from a
minimum of 4" to a maximum of 10", and fits between standard wall
studs. To accommodate thicker walls, the telescoping pieces can be
separated, and a field-fabricated extension installed. The interior
trim ring is painted black. The Thimble must be installed with DuraTech
Chimney pipe horizontally through the wall and extend 6" into the room
beyond the interior wall.
DuraTech is a double-wall, all-fuel
chimney system for use 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.
Diameter: 8”Construction material: GalvalumeClearance: 2”Listings: Listed to the UL 103 height standard, UL file #MH7399. Listed to the Canadian S610 standardInterior trim ring painted black
Item Weight: 9.38 LB
Dimensional Weight: 10.00 LB
With a Thermal Tech blanket insulation encased
between duel walls, DuraTech offers superior safety and performance. It
keeps the outer wall cool while ensuring high flue gas temperatures for
optimum draft performance. The inner wall is 25% thicker than
competitive chimneys, for an extra margin of safety. Designed for
normal, continuous operation at 1000°F flue gas temperatures, DuraTech
is subjected to rigorous and stringent HT requirements of the UL
standard, including one hour at 1400°F, plus three ten minute chimney
fire tests at 2100°F.