What is the construction of the inner liner of Type B vent made of?

The inner liner of Type B vent is specifically constructed from aluminum. This material is chosen due to its lightweight nature and excellent resistance to corrosion, especially in the high-temperature environments typically encountered in venting applications. Aluminum provides the necessary durability and reliability while not adding excessive weight to the overall system.

In addition, aluminum's ability to dissipate heat effectively helps maintain the vent's performance and safety standards. The use of aluminum in Type B vents also aligns with manufacturing practices that focus on efficiency and maintaining a safe operation, as aluminum can manage heat more effectively than other materials under high conditions. This combination of properties makes aluminum the ideal choice for the inner liner of Type B vent systems.