What is the required distance for vent terminations from an adjacent wall?

The required distance for vent terminations from an adjacent wall is indeed 3 feet. This requirement is based on the need to ensure proper ventilation and to prevent any potential hazards associated with exhaust gases from entering nearby openings, such as windows or doors.

When vent terminations are placed too close to a wall, there is a risk that the fumes could accumulate and be inadvertently drawn back into the building, which could compromise indoor air quality and create safety concerns. The 3-foot distance provides a safe buffer zone that helps to mitigate these risks, complying with safety standards intended to protect occupants from harmful exhaust emissions.

This specific requirement reflects both practical considerations and regulatory standards aimed at promoting safe practices in mechanical system installations.