A full line of Type-B gas vents is designed for quick installation on any residential job. The B-Vent is available in 3-24 inch diameters for typical residential installations; for light commercial, ...

The design of gas vent pipes and connectors for furnaces, water heaters, boilers, and other fossil-fuel appliances is a serious matter. Carbon monoxide poisoning, collapsing chimneys, fire hazards, ...