The DuraVent DuraPlus 8" x 9" Triple-Wall All-Fuel Galvanized Steel Chimney Pipe is a high-performance chimney venting solution designed for safe and efficient operation in wood stoves, fireplaces, furnaces, boilers, and other all-fuel heating appliances. Its advanced triple-wall construction features two insulating layers—ceramic blanket insulation and air space—that keep the exterior cooler while maintaining a strong, efficient draft for improved stove performance. This galvanized steel chimney pipe eliminates hot spots common in loose-fill insulation systems, ensuring superior chimney fire safety and long-term system protection.

Engineered for continuous operation at flue gas temperatures up to 1000°F, the DuraPlus 8" chimney pipe meets strict UL 103HT standards, including one hour at 1400°F and three 2100°F chimney fire tests. This durable all-fuel chimney system pipe delivers reliable performance, code-compliant installation, and long-lasting thermal protection.

Features

• Premium Triple-Wall Chimney Pipe System: The DuraVent DuraPlus 8" x 9" galvanized steel chimney pipe is engineered for safe, efficient all-fuel venting applications, including wood stoves, fireplaces, furnaces, boilers, and water heaters.
• Wide Appliance Compatibility: Tested and listed for use with appliances fueled by wood, oil, coal, or gas, making it a versatile solution for modern residential chimney systems.
• Advanced Thermal Insulation Design: Features 1" insulation blanket in 6”, 9”, and 12” chimney pipe lengths (and 1/2" in longer sections), improving chimney efficiency, draft performance, and fire safety.
• Accurate Installation Sizing: For proper fit, subtract 1 1/2" from each chimney pipe length when calculating installed dimensions in chimney system design and planning.
• Optional Shipping Protection: Available with protective carton filler (CF) to ensure safer delivery and reduced damage during transport of chimney venting components.
• Durable Galvanized Steel Construction: Built for long-lasting performance in high-temperature triple-wall chimney systems, providing corrosion resistance and structural strength. 

Specification