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The DURAVENT 6DT-RCS-2 is a round ceiling support box designed for use with DuraTech factory-built chimney systems. This component provides structural support where a chimney flue passes through a ceiling assembly, anchoring the venting system and maintaining proper clearance to combustibles at the ceiling plane. Licensed chimney installers and HVAC technicians install this part during new construction or retrofit chimney projects. The 6-inch diameter matches the DuraTech system's nominal flue sizing, ensuring a consistent fit within the chimney run.
This ceiling support box is used in residential and light commercial applications where a factory-built chimney system penetrates a framed ceiling. It is typically installed in wood-framed floor and ceiling assemblies and serves as a transition point between chimney sections, providing load-bearing support and fire-clearance compliance at the ceiling level. It is suited for installations following NFPA 211 and local building code requirements for factory-built chimney systems.
Designed as an OEM-style component for use with 6-inch diameter DuraTech factory-built chimney systems.
Installation should be performed by a qualified chimney installer or licensed contractor in accordance with NFPA 211 and applicable local building codes. Confirm the ceiling joist spacing and framing dimensions before installation to ensure proper box seating and support. Shut down and allow any connected appliance to cool completely before working on or near the chimney system. Do not reduce specified clearance-to-combustibles dimensions established by the manufacturer and code.
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