Required with DuraPlus HTC flashing to create a weather proof penetration throught the roof line. Seal inner edge of the collar to the chimney pipe with non-hardening 500º F high-temperature sealant. Made of aluminum.
DuraPlus HTC is a double-wall, all-fuel chimney system for Canada for use with wood stoves, fireplaces, and appliances using wood, oil, gas or coal. The insulation maintains a barrier that will not shift or settle and the wall keeps the exterior cool, while ensuring high temperatures for optimum draft performance on the inside.