DuraVent DuraTech LDC 16" Round Ceiling Support Box
The DuraVent DuraTech LDC 16" Round Ceiling Support Box is a critical chimney support and fire safety component designed for the DuraTech LDC all-fuel double-wall chimney system. Ideal for factory-built fireplaces, large masonry fireplaces, and vented non-condensing appliances, this ceiling support box provides secure structural support where the chimney passes through interior ceilings. It ensures proper load distribution, alignment, and safe transition through ceiling assemblies, making it essential for professional chimney installation and venting systems.
Engineered for UL 103 Type HT listed chimney systems, it supports 10"–16" diameters and features a solid-pack design with 1" ceramic insulation between a stainless steel inner wall and stainless or Galvalume outer jacket. It maintains a 2-inch clearance to combustibles and is tested to US and Canadian standards, delivering reliable chimney safety, structural integrity, and long-term high-temperature performance.
Features
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Heavy-Duty Chimney Support System: The DuraVent DuraTech LDC 16" Round Ceiling Support Box securely supports DuraTech LDC double-wall chimney pipe, ensuring a stable and code-compliant chimney installation system for residential and commercial applications.
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Positive Chimney Connection Design: Provides a strong, positive connection between the support box and chimney pipe, improving alignment, stability, and long-term chimney venting performance.
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High Load Capacity Support: Engineered to support up to 40 feet of DuraTech LDC chimney pipe, making it ideal for extended vertical chimney systems and fireplace venting installations.
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Trim Collar Compatibility: Trim collars are sold separately, allowing for a clean, customized finish for professional chimney ceiling installations.
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Accessory Compatibility for 10" Systems: For 10" installations, use a DuraBlack Slip Connector to properly attach DuraBlack chimney pipe to the support box.
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Optimized for DuraTech LDC Systems: Specifically designed for use with DuraTech LDC all-fuel double-wall chimney systems, ensuring safe, durable, and efficient performance.
Specification
| Specification |
Details |
| Model |
16DT-RCS |
| Series |
DuraTech LDC (10"-24") |
| Product Type |
Ceiling Support Box |
| (Size) Inside Diameter |
16” |
| A |
16 5⁄16” |
| B |
20” |
| C |
22” |
Downloads
California PROP 65: This product can expose you to Lead & Chromium, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. See WARNING
