DuraVent Concentric Vent System 3" x 5" Black Air Intake Manifold d37.8 the chalice

the chalice

And its operation is free of noises

Propane by conversion Viewing Area 35-1/2 x 12-1/2" BTU/hr Input 30

5"/13" WC Framing dimensions 53 13/16" W x 73" H x 17 15/16" D Actual viewing area 40 3/4" W x 18 5/8" H Valve type Intermittent pilot (IPI)

DuraVent Concentric Vent System 3" x 5" Black Air Intake Manifold d37.8 the chaliceAn 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