This 36" section of 5" Ventis Class-A 316L chimney pipe is UL 103 HT listed and rated to handle temperatures up to 2,100°F — built for the demands of wood stoves, fireplaces, pellet stoves, and other solid-fuel appliances. High-density insulation between the 316L stainless inner wall and 430 stainless outer casing keeps flue gases at temperature to cut down on condensation and creosote buildup, while the tight-fitting, interlocking joint snaps together for a fast, leak-free install.