DuraVent DuraPlus 7" Galvanized Wall Thimble
The DuraVent DuraPlus 7" Galvanized Wall Thimble is a durable triple-wall chimney system component designed for safe and efficient through-the-wall installation in wood stove and all-fuel venting systems. Engineered with advanced refractory blanket insulation and an air-space barrier, this chimney wall thimble helps maintain safe clearances while reducing heat transfer to surrounding wall structures. Its galvanized steel construction ensures long-lasting durability and reliable performance in residential chimney venting applications, improving overall stove efficiency and system safety.
Built for continuous operation at flue gas temperatures up to 1000°F, the DuraVent DuraPlus wall thimble meets stringent UL 103HT standards, including one hour at 1400°F and three 2100°F chimney fire tests. This high-performance chimney penetration component ensures code-compliant installation, enhanced fire safety, and dependable long-term performance in modern all-fuel chimney systems.
Features
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Essential Chimney Wall Penetration Component: Designed for 7" DuraPlus triple-wall chimney systems, the galvanized wall thimble enables safe and code-compliant through-the-wall installation for wood stove and all-fuel chimney venting systems.
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Adjustable Wall Thickness Fit: Telescoping design adjusts from 4 1/4" to 7 1/4" wall thickness, fitting securely between standard wall studs for flexible residential chimney installation applications.
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Expandable for Thicker Walls: Telescoping sections can extend up to 16" with field-fabricated extensions, supporting custom chimney installations in thicker wall assemblies.
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Proper Installation Requirement: Must be installed with DuraPlus chimney pipe running horizontally through the wall, extending at least 2" into the room beyond the interior wall for safety and compliance.
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Clean Interior Finish: Includes an interior trim ring painted black, providing a clean, finished appearance for visible indoor chimney penetrations.
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System Compatibility: Designed for use with DVL and DuraBlack adapters, ensuring flexible integration within DuraVent chimney venting systems.
Specification
| Specification |
Details |
| Model |
7DP-WT |
| Diameter |
7" (inner) / 14" (outer) |
| Dimensions |
17" x 17" |
| Wall Thickness |
4.75" to 7.75" |
| Clearances |
2" clearance to combustible |
| Listings |
UL Listed to UL 103HT (MH7399) |
| Warranty |
Limited-lifetime warranty |
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
