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DuraTech Class-A Chimney System 8" 30° Elbow Kit - Use elbows to offset around obstructions such as rafters, ridgepoles, or joists. Offsets greater than 30° are not allowed. Each elbow swivels a full 360°. The DuraTech Class-A Chimney System 8" 30° Elbow Kit features a stainless steel outer casting with stainless steel inner wall and a twist-lock connection.
With a Thermal Tech blanket insulation encased between duel walls, DuraTech offers superior safety and performance. It keeps the outer wall cool while ensuring high flue gas temperatures for optimum draft performance. The inner wall is 25% thicker than competitive chimneys, for an extra margin of safety. Designed for normal, continuous operation at 1000°F flue gas temperatures, DuraTech is subjected to rigorous and stringent HT requirements of the UL standard, including one hour at 1400°F, plus three ten minute chimney fire tests at 2100°F.