DuraVent DuraTech 6" Galvalume Wall Strap d13.50 The ceramic fiber will glow

The ceramic fiber will glow when heated and has additional glowing properties added

Pebbles come 1 to 2 inches in size

Williams Furnace 9A336 High Altitude Conversion Kit for 5009821 and 5009621A

View indoor

Bracket measures 17" (W) x 11

DuraVent DuraTech 6" Galvalume Wall Strap d13.50 The ceramic fiber will glowWith 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