DuraVent DuraPlus 8" Galvanized Steel Wall Thimble

The DuraVent DuraPlus 8" Galvanized Steel Wall Thimble is a premium triple-wall chimney system component designed to provide a safe, code-compliant pass-through for wood stove, fireplace, and all-fuel chimney installations. Featuring advanced ceramic blanket insulation combined with an insulating air space, the DuraPlus system keeps the outer wall cooler while maintaining a strong, efficient draft. This galvanized steel wall thimble minimizes heat transfer, eliminates hot spots, and enhances chimney fire safety, protecting both the chimney system and surrounding combustible wall materials.

Order Numbers: DV-8DP-WT - Galvanized Steel; DV-8DP-WTSS - Stainless Steel

Engineered for continuous operation at flue gas temperatures up to 1000°F, the DuraVent DuraPlus Wall Thimble meets rigorous UL 103HT safety standards, including one hour at 1400°F and three 2100°F chimney fire tests. Its durable construction delivers dependable performance, long-lasting protection, and reliable support for modern all-fuel chimney venting systems.

• Heavy-Duty 8" Wall Thimble: Designed specifically for DuraVent DuraPlus 8" triple-wall chimney systems, providing a safe and code-compliant wall pass-through for wood stove, fireplace, and all-fuel chimney installations.
• Adjustable Wall Thickness: Telescoping design adjusts from 4 1/4" to 7 1/4" wall thickness, fitting between standard wall studs for flexible residential chimney venting system installations.
• Expandable for Thick Walls: Telescoping sections can be extended up to 16" with a field-fabricated extension, accommodating thicker wall assemblies without compromising safety.
• Professional Interior Finish: Includes a painted black interior trim ring that conceals rough openings and provides a clean, finished appearance.
• Safe Horizontal Chimney Installation: Designed for use with DuraPlus chimney pipe installed horizontally through the wall, extending at least 2 inches into the room beyond the interior wall for proper installation.
• Adapter Compatible: Compatible with DVL and DuraBlack adapters, allowing seamless integration with approved stove pipe systems.
• UL 103HT Certified:UL Listed to UL 103HT (MH7399), ensuring dependable high-temperature performance, fire safety, and code-compliant installation.

Specification