DuraVent Concentric Vent System 3" x 5" x 36" Galvalume Vent Pipe Length venting-pipe White herringbone refractory panels with

White herringbone refractory panels with integrated ash lip

UL 641 Clearance Minimum 3" clearance to combustibles Diameter 5

which instantly shuts off the valve if oxygen in the room drops to and unsafe level

Two Stage 34

DuraVent Concentric Vent System 3" x 5" x 36" Galvalume Vent Pipe Length venting-pipe White herringbone refractory panels withAn economical venting solution for condensing and noncondensing appliances, the Concentric Venting System (CVS) features a UL1738 approved super ferritic stainless steel inner wall. The proprietary twist lock connection eliminates use of clamps or mechanical fasteners and saves installation time. Only one penetration is needed through the roof or the wall for both exhaust and combustion air. Multiple pipe lengths and telescoping pipe extensions