DuraTech Insulated Reduced Clearance Support box by Duravent

Use to support chimney with flat, vaulted, or cathedral ceiling. Certified to reduce clearances from 2″ to just 1″ for any portion of chimney shielded within the support’s box. Note: Any exposed chimney above the support still requires minimum 2″ clearances-to-combustibles. Reduced clearance allows for smaller opening & frame within ceiling. Support can also serve as the Attic Radiation Shield. Includes top collar as shown, insulation, and two-piece adjustable black finish trim. Integrated adapter accepts either single-wall or double-wall stovepipe.