• Free-floating 430-alloy inner liner maintains structural
• Limited Lifetime Warranty
• 2" clearance to combustibles
• UL Listed to 103HT

DuraTech sets the standard in performance. The ThermalTech blanket insulation in the lengths, elbows, and tees eliminates hot spots — no shifting, settling, or voids. In the event of a creosote fire, this insulation lets the chimney liner expand outward and lengthwise, eliminating buckling and loss of structural integrity.

DuraTech uses twist-lock connections and is available with stainless or galvalume outer wall. The inner liner is 430-alloy stainless steel. Outer diameters are 2" larger than the inner. When double-wall stovepipe is needed, use DuraVent DVL.

DuraTech is tested and listed to the UL 103HT Standard for use with
wood, oil, coal, and gas appliances in 5" – 8" diameters