DuraVent DuraTech 7" Chimney Cap counterflow You must use your designated

You must use your designated phrase

Designed to cover any gap existing between the fireplace and surrounding wall

you will want to set up the channels of controllers

Log Series: Wood Chip Ring

5" x 8" Rear Vent Collar

DuraVent DuraTech 7" Chimney Cap counterflow You must use your designatedWith 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