What Is Type B Double Wall Vent Pipe

Type b gas vent models m and mo double wall type b gas vent for approved category i natural gas or propane fired appliances gas furnaces heaters fireplaces and boilers in accordance with nfpa 211 standards for chimneys fireplaces vents and solid fuel burning appliances and nfpa 54 the national fuel gas code.

What is type b double wall vent pipe. Durability is the result of high quality materials and workmanship with galvanized outer pipe and aluminum inner pipe providing protection against corrosion and external damage. Type b gas vent components. Each of these ameri vent gas pipes features rugged double wall construction with aluminum alloy 1100 3003 or 3105 inner pipe and corrosion resistant galvanized steel outer pipe. Die formed ends to assure uniform sizing.

4 inch round gas vent collection. Type b pipe is becoming less prevalent for venting hearth products but many furnaces and water heaters still use it. Duravent aluminum tee cap with 3 inner diameter. The exclusive locktab feature adds versatility to installation.

One of the fire safety features of double wall type b gas vent is that its outer wall insulated by the airspace beneath it requires only 1 clearance to combustible material in the structure. Ameri vent gas vent pipes. Made of strong durable galvanized steel this vent pipe is built to last. The air space between the inner and outer walls of the vent.

What is type b gas pipe. Duravent 5 inner diameter type b round gas vent pipe double wall 12 adjustable pipe length. Round type b gas vent pipe is ideal for residential light commercial and industrial applications. Amerivent is a complete gas venting system from 3 to 30 pipe diameters in 7 different pipe lengths to single to multi appliance hook ups.

Round type b gas vent pipe features an aluminum and steel double wall construction that is corrosion resistant. Designated for use on approved gas appliances the 3 in. Duravent 4 inner diameter type b round gas vent pipe double wall 12 adjustable pipe length. 5 inch round gas vent collection.

Light weight and rugged the american metal products 5 in. Duravent aluminum high wind cap with 5 inner diameter. Type b gas pipe also called b vent or natural vent is prefabricated double wall metal pipe used to vent gas appliances listed for use with type b gas vent.