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8" Duratech Round Ceiling Support Box 9645
8" Duratech Round Ceiling Support Box

Our Price: $235.79

Availability:: Usually Ships in 24 to 72 Hours
Product Code: 8DT-RCS


The DuraTech Round Ceiling Support Box supports chimney pipe and provides a positive connection between the support box and the chimney pipe with a built-in twist lock feature. This ceiling support box will support up to 60' of DuraTech Chimney. Trim collars are not included.

DuraTech is a double-wall, all-fuel chimney system for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas, and zero-clearance fireplaces that are factory-built.


  • Diameter: 8
  • Construction material: Galvalume
  • Clearance: 2
  • Listings: Listed to the UL 103 height standard, UL file #MH7399. Listed to the Canadian S610 standard
  • Painted black
  • Item Weight: 4.34 LB
  • Dimensional Weight: 5.00 LB
  • Model: 9645

  • With a Thermal Tech blanket insulation encased between duel walls, DuraTech offers superior safety and performance. It keeps the outer wall 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. Designed for normal, continuous operation at 1000F flue gas temperatures, DuraTech is subjected to rigorous and stringent HT requirements of the UL standard, including one hour at 1400F, plus three ten minute chimney fire tests at 2100F.

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