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Free Shipping over $299 | No Sales Tax except WI | Contact Us for Deals
Free Shipping over $299 | No Sales Tax except WI | Contact Us for Deals

National Chimney M-Flex Pre-Insulated Wood-Burning Insert Liner Kit

SKU DBP625BK
Original price $1,429.68 - Original price $1,825.30
Original price
$1,429.68
$1,429.68 - $1,825.30
Current price $1,429.68

Free Shipping and No Sales Tax on All Orders

  • FREE SHIPPING : All Over United States

  • NO SALES TAX : All USA Orders/except WI

  • SPEAK TO AN EXPERT : Call 888-486-2909 or email at cs@dreamwoodliving.com

National Chimney M-Flex Pre-Insulated Wood-Burning Insert Liner Kit

The National Chimney M-Flex Pre-Insulated Wood-Burning Insert Liner Kit, a premium chimney relining solution designed for wood stoves and fireplace inserts. This high-performance pre-insulated chimney liner kit is engineered to improve draft efficiency, enhance safety, and deliver consistent venting performance for demanding residential heating applications.

Built with a durable 316L stainless steel inner liner and a protective aluminum outer casing, this insulated chimney liner system ensures excellent heat retention and long-lasting corrosion resistance. Ideal for wood-burning insert installations, it supports high-temperature operation while improving overall chimney efficiency. Easy to install and built for reliability, this wood stove chimney liner kit is the perfect upgrade for safer, more efficient, and professional-grade venting performance.

Features

  • Pre-Insulated Chimney Liner for Maximum Efficiency – Featuring 1/2" thick pre-insulation, this pre-insulated chimney liner kit reduces condensation, improves draft performance, and enhances overall wood-burning stove efficiency while minimizing creosote buildup.
  • UL 1777 Listed All-Fuel Chimney Liner System – Certified for safe operation with wood, coal, oil, gas, and pellet appliances, ensuring reliable performance in all all-fuel chimney venting applications.
  • Premium 316L Stainless Steel Inner Liner – Constructed from mill-certified 316L stainless steel, this chimney liner system delivers exceptional corrosion resistance, high-heat durability, and long-term reliability for chimney relining projects.
  • Flexible Aluminum Outer Casing – Lightweight and highly flexible, the aluminum outer shell chimney liner allows easier handling and installation, especially in tight or offset chimney spaces.
  • Enhanced Draft & Reduced Creosote Formation – Insulated design maintains consistent flue temperatures, improving chimney draft efficiency and reducing dangerous creosote accumulation for safer operation.
  • Complete Chimney Liner Installation Kit – Includes a stove adapter, rain cap, and 13” x 13” top plate, providing a full chimney relining kit for quick and professional installation.
  • Optimized for Wood-Burning Insert Applications – Specifically engineered for wood stove and fireplace insert installations, delivering improved combustion performance and heating efficiency.
  • Available in Standard Length Options – Offered in 25 ft and 35 ft lengths, making it suitable for most residential chimney liner replacement projects.
  • High Flexibility for Easy Installation – Designed to navigate offsets and existing masonry chimneys with ease, reducing installation time and complexity.
  • Transferable Lifetime Warranty Protection – Backed by a lifetime transferable warranty, ensuring long-term confidence and dependable performance.

Specifications

Diameter* Length Inner Material Outer Material SKU
6" 25' 316L Stainless Steel Aluminum CBP625KIT
6" 35' 316L Stainless Steel Aluminum CBP635KIT
7" 25' 316L Stainless Steel Aluminum CBP725KIT
7" 35' 316L Stainless Steel Aluminum CBP735KIT
8" 25' 316L Stainless Steel Aluminum CBP825KIT
8" 35' 316L Stainless Steel Aluminum CBP835KIT

Add additional 1-inch to compensate for 1/2" thickness of insulation.

Warranty

  • Limited Lifetime Warranty

Documents & Files

National Chimney M-Flex Pre-Insulated Wood-Burning Insert Liner Kit