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® Flashing, 3 in, Galvanized Steel, 12-1/2 in Length, 14-3/4 in Width, 4 in Height
| Height | : | 4 in |
| Length | : | 12-1/2 in |
| Material | : | Galvanized Steel |
| Size | : | 3 in |
| Width | : | 14-3/4 in |
- 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 where the vent passes through the roof
- Fits flat to 6/12 pitch roof
- Built with double seamed construction for protection from leakage
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