DuraVent

DuraVent 35' Flex Pipe Length DuraFlex 304 Stainless Steel Basic Kit

$1029.00
$1029.00
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DuraVent 35' Flex Pipe Length DuraFlex 304 Stainless Steel Basic Kit

The DuraVent 35' DuraFlex 304 Stainless Steel Basic Kit is a complete flexible chimney liner kit designed for dependable masonry chimney relining and high-performance venting applications. Featuring a 35-foot 304 stainless steel chimney liner, this kit is ideal for wood-burning fireplaces, wood stoves, non-condensing gas appliances, and oil-fired heating systems with minimal chimney offsets. Its lightweight, flexible construction allows easier installation while providing excellent corrosion resistance and long-lasting durability. The DuraFlex 304 system is UL 1777 and ULC S635 listed, delivering a safe and code-compliant solution for professional chimney restoration projects.

Engineered for reliable chimney performance, the DuraFlex 304 stainless steel chimney liner kit improves draft efficiency while protecting masonry chimneys from heat, moisture, and corrosive flue gases. This 35-foot flexible chimney liner kit is an excellent choice for fireplace inserts, furnaces, boilers, and oil heating appliances, offering installation flexibility and dependable operation. Backed by DuraVent’s trusted venting technology, this professional-grade chimney liner provides a durable upgrade for replacing outdated liners and improving overall heating system performance.

Features

    • DuraVent 35' DuraFlex 304 Stainless Steel Basic Kit: Complete 35-foot flexible chimney liner kit designed for professional masonry chimney relining, chimney restoration, and reliable venting upgrades.
    • Premium 304 Stainless Steel Construction: Built with durable 304 stainless steel to provide excellent corrosion resistance, strength, and long-lasting performance in chimney applications.
    • 35-Foot Flexible Chimney Liner: Includes an extended 35-foot stainless steel flex pipe ideal for taller chimney systems and replacement liner installations.
    • Available in 3" to 8" Diameters: Offered in multiple sizes to fit various wood stoves, fireplaces, fireplace inserts, furnaces, boilers, and oil heating appliances.
    • Multiple Flex Length Options: Available in 15', 20', 25', 30', and 35' lengths to meet different chimney height and installation requirements.
    • Compatible with Solid Fuel, Gas & Oil Appliances: Designed for use with solid fuel, non-condensing gas, and oil-fired appliances for versatile chimney venting solutions.
    • Flexible Chimney Relining Solution: Helps simplify installation in masonry chimneys with minimal offsets while maintaining efficient flue gas flow and proper draft performance.
    • Improves Chimney Efficiency: Helps restore aging chimney systems and protects masonry flues from heat, moisture, and corrosive combustion byproducts.
    • UL Listed Chimney Liner Kit: Part of the trusted DuraVent DuraFlex 304 series, featuring UL 1777 and ULC S635 listings for safe, code-compliant installations

    Specifications

    Model Size Flex Length
    3DF304-35K 3" I.D 35 ft.
    4DF304-35K 4" I.D 35 ft.
    5DF304-35K 5" I.D 35 ft.
    55DF304-35K 5.5" I.D 35 ft.
    6DF304-35K 6" I.D 35 ft.
    7DF304-35K 7" I.D 35 ft.
    8DF304-35K 8" I.D 35 ft.
    Materials 304 Stainless Steel
    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

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