DuraTech Reduced Clearance Support Box-6"

Supports chimney pipe and provides a positive connection between support box and chimney with a built-in twistlock. Suitable for both flat and cathedral (A-Frame) ceiling applications. Also use in short attic spaces (see instructions). Fits between standard 12” on center joists and most manufactured home applications. Supports up to 60' of DuraTech Chimney. Integrated adapter accepts either single-wall or doublewall stovepipe. Use adapter to attach DVL or DuraBlack to the support box. A 2” wide trim collar is included. Painted black. (For adapters see DVL/DuraBlack section).

Additional DuraTech Info:

Featuring thermal blanket insulation between dual walls, DuraTech delivers top-tier safety and performance. It maintains a cool outer chimney wall while ensuring high flue gas temperatures for optimal draft. The inner wall is 25% thicker than those in competing chimneys, providing an extra layer of safety. With no need for locking bands or mechanical fastene