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The adjustable DuraVent DuraTech Wall Thimble allows you to install chimney pipe horizontally through walls while maintaining safety. It offers professional, secure, and reliable chimney installations.
Adjustable to wall thickness (5 ½” to 9 ½”)
Field-fabricated extensions can be used for thicker walls (up to 16")
Fits between standard wall studs
Black interior trim plate
Optional stainless steel exterior trim plate available
Perfect for standard wall construction, this adjustable wall thimble easily fits wall thicknesses from 5 ½ inches up to 9 ½ inches. It extends up to 16 inches with a field-fabricated extension for thicker walls.
Ensures chimney pipes pass securely through interior and exterior walls. Duratech chimney pipe must extend 6 inches into the home beyond the wall thimble. Black DuraTech pipe is available for purchase to maintain a finished look.
A black painted interior trim plate is included, providing a clean and professional finish to interior wall openings in residential and commercial chimney installations.
Available with optional stainless steel exterior trim in 6” and 8” sizes, it protects and enhances the exterior wall appearance.
The telescoping design allows for straightforward, hassle-free installation between standard wall studs, significantly reducing installation time and complexity.
| Specification | 5” Model | 6” Model | 7” Model | 8” Model |
|---|---|---|---|---|
| Part Number | 5DT-WT | 6DT-WT | 7DT-WT | 8DT-WT |
| Stock Number | 810000030 | 810000109 | 810000183 | 810000250 |
| Pipe Opening Diameter (A) | 7 1⁄8” | 8 1⁄8” | 9 1⁄8” | 10 1⁄8” |
| Interior Trim Width (B) | 14” | 14” | 16” | 16” |
| Wall Insert Width (C) | 10 7⁄8” | 11 7⁄8” | 12 7⁄8” | 13 7⁄8” |
| Exterior Trim Width (D) | 13” | 14” | 15” | 16” |
| Adjustable Wall Thickness | 5 ½” to 9 ½” (extends up to 16”) | 5 ½” to 9 ½” (extends up to 16”) | 5 ½” to 9 ½” (extends up to 16”) | 5 ½” to 9 ½” (extends up to 16”) |
| Interior Trim Finish | Black Painted | Black Painted | Black Painted | Black Painted |
| Exterior Trim Option | Galvalume | Galvalume or Stainless Steel | Galvalume | Galvalume or Stainless Steel |
| Installation Application | Horizontal Wall Chimney Installation | Horizontal Wall Chimney Installation | Horizontal Wall Chimney Installation | Horizontal Wall Chimney Installation |
| Clearance to Combustibles | 2” Minimum | 2” Minimum | 2” Minimum | 2” Minimum |
| Material | Galvanized Steel | Galvanized Steel or Stainless Steel | Galvanized Steel | Galvanized Steel or Stainless Steel |
| Warranty | Limited Lifetime | Limited Lifetime | Limited Lifetime | Limited Lifetime |
