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Time Saver Duravent - 6" Factory Built Duraflex 316 Stainless Steel Reline Kit At A Low Price [BcAO8Hsa]

$61.99 $198.99 -69%

Elevate your chimney's performance and safety with the DuraVent 6" Factory Built DuraFlex 316 Stainless Steel Reline Kit. As the frontrunner in the venting industry, DuraVent has consistently delivered innovative, reliable, and professional-grade pro

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Time Saver Duravent - 6" Factory Built Duraflex 316 Stainless Steel Reline Kit At A Low Price [BcAO8Hsa]

Elevate your chimney's performance and safety with the DuraVent 6" Factory Built DuraFlex 316 Stainless Steel Reline Kit. As the frontrunner in the venting industry, DuraVent has consistently delivered innovative, reliable, and professional-grade products to the HVAC and Hearth markets. This kit exemplifies our commitment to excellence.

DuraFlex Pro, the core of this kit, boasts 20% more stainless steel per foot than its competitors, ensuring unmatched strength and flexibility. With its extreme pliability, this liner simplifies installations, even when dealing with tricky offsets. DuraFlex Pro, constructed from highly corrosion-resistant 316 Stainless Steel, is UL 1777 and ULC S635 certified, a testament to its quality and safety.

But the advantages don't stop there. DuraFlex SW, a smooth inner-wall stainless steel chimney liner included in the kit, guarantees optimal appliance efficiency. Its sleek, ridge-free design eliminates obstructions, allowing seamless flue gas flow and minimizing deposits. This not only enhances performance but also simplifies maintenance, making it perfect for relining masonry chimneys for wood and gas-burning appliances, all while being UL 1777 listed.

Benefits:

  • Enhanced Safety: This kit is essential for ensuring the safe operation of wood-burning inserts in existing UL-127-listed fireplaces. It's a critical step toward maintaining safety and performance.
  • Versatile Applications: Whether you have a wood pellet, oil, or wood appliance, this kit is compatible. It's perfect for fireplace inserts, furnaces, boilers, and water heaters.
  • Customizable: Tailor the kit to your needs with custom lengths (minimum 10' length) available for both DuraFlex Pro and DuraFlex SW. Ventinox components are also compatible for all 9"-12" flex systems.
  • Efficient Design: The smooth inner wall of DuraFlex SW ensures optimal appliance efficiency by eliminating ridges that restrict flue gas flow.
  • Low Maintenance: Say goodbye to deposits and obstructions. DuraFlex SW's design makes cleaning and maintenance a breeze.
  • UL Certified: With UL 1777 and ULC S635 certifications, you can trust the safety and quality of this kit.
  • Lifetime Warranty: Enjoy peace of mind with our limited-lifetime warranty, showcasing our commitment to your satisfaction.

Features:

  • Use as a relining system for factory-built chimneys to be used with solid-fuel appliances in the USA.
  • Relining is critical for performance and safety when a wood-burning insert is installed into an existing UL-127-listed fireplace.
  • Kit includes Cap, Storm Collar, Support Bracket, Ventilation Disk, Centering Bracket, DuraLiner 12" Length, Flex Connector, Flex Length (25' or 35'), Adjustable Band, and Flex Adapter.

 Applications:

DuraFlex 316 flexible relining for a masonry chimney. Use with gas, wood pellet, oil, or wood appliances. Applications include fireplace inserts, furnaces, boilers, and water heaters.

Specifications:

Model Size Flex Length
6DF316-25KFB 6" I.D 25 ft.
6DF316-35KFB 6" I.D 35 ft.
Construction Single-Wall
Clearance 0” clearance for gas, oil, and pellet applications.
Clearance 1” clearance to masonry for wood-burning
Listings Listed to UL 1777 and ULC S635 (MH45609).
Warranty Limited-lifetime warranty

Downloads:

About the Manufacturer:

Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting.The company’s research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro.

What Our Customers Say

January 17, 2026

Absolutely no complaints!

A product that is a real joy to work with.

- Destiny A..

January 17, 2026

Absolutely no complaints!

I love it! A very, very, very great buy.

- Jane Z..

January 17, 2026

Absolutely no complaints!

Very high quality and so very, very well made.

- Julia L..

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