The type B designation is assigned to gas venting systems that meet the safety requirements of Underwriters Laboratories, Inc. The AmeriVent® all metal, double wall gas vent is listed as type B by Underwriters Laboratories, Inc. And is approved for such residential and commercial applications as category I water heaters, boilers, furnaces, space heaters or wall heaters. UL approved type B gas vent products form a continuous passageway from an approved gas appliance to the termination of the vent above the roof of the structure.
AmeriVent® Pipe, 4 in Nominal, 7-1/16 in OD, 48 in Length
Length | : | 48 in |
Outside Diameter | : | 7-1/16 in |