What Is B Vent Used For

B vent: This approach, also called natural vent, pulls air from indoors for combustion and vents it outside. It features a chimney with a double wall pipe which runs from the fireplace to outside of the home. Homeowners can purchase fire boxes inside another box.

What is Type B vent used for?

Type B vents are vents suitable only for listed, draft-hood equipped, gas-fired appliances, including most domestic heating and hot water systems. any appliance that produces flue gasses that exceed 480° F (249° C).

Can B Vent be used outside?

Any portion of your B vent system that passes through the occupied area must be enclosed to protect against any emergency, such as the system’s burning. But we will not recommend installing the B vent pipe on the outside wall of the building, especially when the outside weather is cold.