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The adjustable, insulated DuraVent DuraTech Wall Thimble, ideal for horizontal chimney venting through walls, efficiently secures your chimney pipe installation.
Adjustable from 5½” to 9½” wall thickness
Factory-installed insulation
Black painted interior trim
Extendable up to 16”
Optional stainless steel exterior trim
Factory-installed insulation increases safety by reducing heat transfer, making this wall thimble perfect for homes requiring enhanced protection.
The telescoping design adjusts from 5½” to 9½” and can extend to 16” with a field-installed extension, ensuring a secure fit in thicker walls without additional hassle.
Interior trim painted black provides a clean, professional look inside the home, enhancing your living space aesthetics.
Choose optional stainless steel exterior trims (available for 6” and 8” models) to complement the exterior siding and add durability to your chimney installation.
Explicitly engineered for safe, reliable horizontal installations between standard wall studs and is compatible with DuraTech chimney pipes and accessories.
| Specification | 5” Model | 6” Model | 7” Model | 8” Model |
|---|---|---|---|---|
| Part Number | 5DT-IWT | 6DT-IWT | 7DT-IWT | 8DT-IWT |
| Stock Number | 810014831 | 810014830 | 810014832 | 810014833 |
| Chimney Pipe Opening Diameter (A) | 7 ¼” | 8 ¼” | 9 ¼” | 10 ¼” |
| Interior/Exterior Trim Width (B) | 13” | 14” | 15” | 16” |
| Wall Insert Width (C) | 11” | 12” | 13” | 14” |
| Wall Thickness Adjustability | 5½” to 9½” (extends to 16”) | 5½” to 9½” (extends to 16”) | 5½” to 9½” (extends to 16”) | 5½” to 9½” (extends to 16”) |
| Interior Trim Finish | Black Painted | Black Painted | Black Painted | Black Painted |
| Exterior Trim Option | N/A | Stainless Steel (Optional) | N/A | Stainless Steel (Optional) |
| Installation Application | Horizontal Wall Chimney Venting | Horizontal Wall Chimney Venting | Horizontal Wall Chimney Venting | Horizontal Wall Chimney Venting |
| Clearance to Combustibles | 2” Minimum | 2” Minimum | 2” Minimum | 2” Minimum |
| Material | Galvanized Steel with Insulation | Galvanized Steel with Insulation | Galvanized Steel with Insulation | Galvanized Steel with Insulation |
| Warranty | Limited Lifetime | Limited Lifetime | Limited Lifetime | Limited Lifetime |
