DuraVent DuraTech 6" Galvalume Insulated Wall Thimble replacement-part Amount required: 8 lbs for

Amount required: 8 lbs for 25” / 14 lbs for 30”

13” D Rough Opening Dimensions 58

Optional front panel for Dimplex Revillusion fireplace

Reinforced Cement

Quiet vacuum system

DuraVent DuraTech 6" Galvalume Insulated Wall Thimble replacement-part Amount required: 8 lbs forWith 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