DuraVent DuraTech 5" Black Round Ceiling Support Box made-in-canada surround sound

surround sound

wet lava rock could crack or pop out when it becomes hot

With a sleek linear design and a multitude of designer options

lets you set the perfect mood – whether the fireplace is burning or not

DuraVent DuraTech 5" Black Round Ceiling Support Box made-in-canada surround soundWith a Thermal Tech blanket insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney 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. No locking bands or mechanical fasteners required. DuraTechs sleek 1" wall design provides for easy installations through 16" on