What is the minimum distance that the discharge point from vent systems must be from any window, door, or opening into conditioned spaces that is below the exhaust point?

The minimum distance that the discharge point from vent systems must be from any window, door, or opening into conditioned spaces that is below the exhaust point is established to ensure safety and air quality within buildings. The correct distance of 10 feet helps to prevent the re-entrainment of radon and other contaminants that may be present in the exhaust from vent systems, thereby minimizing the potential exposure of occupants to harmful substances.

In radon mitigation, proper venting is crucial as it reduces radon concentrations in occupied spaces. By maintaining a distance of 10 feet, it prevents radon or exhaust gases from flowing back into the building environment, particularly through openings that lead into living areas. This guideline is part of best practices in indoor air quality management and is critical for effective radon mitigation strategies.