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 UL and is approved for residential and commercial applications such as category 1 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® Attic Shield, 4 in Nominal, 14 in W x 3-5/8 in D x 18 in H
Dimensions
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14 in W x 3-5/8 in D x 18 in H
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- AmeriVent® pipe are lightweight and rugged feature, made of corrosion-resistant galvanized steel and aluminum
- Ends have a snaplock coupling
- 1 in minimum clearance to combustibles
- To disengage the locking tab align the seams and pull apart
- Locking tab to ensure a secure fit, push in the locking tab to lock the pipes together
- Engagement snaplock joints overlap to calculate height deduct 1 in for each joint
- Used on a single story building or on the top story of a multi-story building for type BW gas vent
- The 26 ga galvanized sheet metal extends down from the attic to the top of the ceiling plate
- Required by Los Angeles code and UMC