What is the minimum rise required for venting per foot?

The minimum rise required for venting per foot is designed to ensure that gases or liquids are effectively directed away from a system, which helps maintain proper drainage and function. A rise of 1/4 inch per foot is specified because it prevents condensation and allows for the effective venting of gases, reducing the risk of backflow and ensuring that any debris or moisture can easily drain away.

This standard is critical in preventing potential blockages or issues within the system that could arise from inadequate slope or rise in venting. In HVAC applications, maintaining proper venting is essential for efficient operation and safety of the system, which is why adherence to this requirement is emphasized.