With a Thermal Tech blanket insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney 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. No locking bands or mechanical fasteners required.

DuraTech’s sleek 1″ wall design provides for easy installations through 16″ on-center framing. For tight installations, a Reduced Clearance Square Ceiling Support Box is available (6″ diameter DuraTech only).

Designed for normal, continuous operation at 1000°F flue gas temperatures, DuraTech is subjected to rigorous and stringent high temperature requirements of the UL standard, including one hour at 1400°F, plus three ten-minute chimney fire test at 2100°F.

What’s Included

• Wall Thimble (GA)

Features

• Adjusts from a minimum of 5 1/2” to a maximum of 9 1/2” 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 plate 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.

Specifications

Technical Dimensions