DuraVent DuraTech 5" - 6" Black Trim Collar for Round Support Box control-options Installation in a mantel requires

Installation in a mantel requires 3-piece Outer Frame Kit (Required)

4"Ø x 25' Insulated Flex Pipe for Fresh Air

making the F45 remote one of the most versatile

Model: CFB-42CBI

DuraVent DuraTech 5" - 6" Black Trim Collar for Round Support Box control-options Installation in a mantel requiresWith 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