Product Description

• The BEST-Flex Stainless Steel Flexible Chimney liner is designed to reline existing chimneys or to be used as a liner in new construction. Manufactured with the highest quality, mill certified alloy. BEST-Flex Stainless Steel Flexible Chimney Liner has a high acid fighting capability. Listed by UL Laboratories to UL 1777 & ULC S635 standards for zero clearance installation. BEST-Flex can be used to vent wood, wood pellet, coal, noncondensing gas and oil, making it the choice for venting all standard efficiency installations. UL listed BEST-Flex is available in 3" to 12" diameters (13" above is not listed) to cover a wide range of requirements found in the field today.

• The unique manufacturing systems used to make BEST-Flex utilizes a continuous strip of stainless steel, 4-ply interlocked to produce a gas and watertight lining system of superior strength and durability. BEST-Flex can be curved to go around offsets in chimneys and can be shaped to custom sizes to fit most any installation requirement. The flexible construction allows for expansion & contraction during the heat up & cool down periods which removes any stresses on the system.

• BEST-Flex can be insulated with either a vermiculite based poured insulation or with a foil-faced ceramic wool blanket to meet UL 1777 & ULC S635 standards for chimney exteriors with zero clearance to combustibles.
• BEST-Flex Stainless Steel Chimney Liner comes with a Life Time Warranty for all fuels.

• Sizing parameters of Best Flex Chimney liners (non-corrugated) models shall be sized using NFPA54 13.1A, 13.1B, 13.2A, AND 13.2B 13.6, for gas and NFPA31, E5.4(a) through E5.4(e) without reduction to capacity.