How many feet must any intake openings be from lot lines?

The regulation that dictates the distance intake openings must be from lot lines focuses on ensuring adequate air quality and minimizing the risks associated with contaminants. This requirement aims to establish a safe separation distance that avoids direct intake of exhaust from vehicles, nearby structures, or other sources that may negatively affect the air quality entering into HVAC systems.

The specified distance of 10 feet is significant because it provides a buffer zone that helps prevent potential pollutants from being sucked into an air conditioning system. This regulation is designed to protect the efficiency and functionality of the HVAC system, as well as to comply with health and safety standards established at the local or state level.

In this context, the other distances mentioned do not align with the commonly accepted standards or requirements. Distances shorter than 10 feet would increase the likelihood of air quality issues, while distances longer than 10 feet may not be practical or necessary, thus making 10 feet the appropriate and enforceable standard.