How far must a venting system terminate above an air inlet that is within a certain distance?

The requirement for how far a venting system must terminate above an air inlet is crucial for ensuring proper operation and safety in heating systems. The code specifies that venting systems must be positioned at least 4 feet above any air inlet located within a specified distance. This distance is important to prevent exhaust gases from re-entering the building through the air intake, which could lead to carbon monoxide poisoning or backdrafting issues.

By having the vent terminate at this height, it promotes adequate dispersion of combustion gases and helps maintain proper ventilation within the space. Understanding these requirements helps ensure compliance with safety standards and regulations, ultimately contributing to the overall efficiency and safety of heating systems.