M1504.3 Exhaust openings. Air exhaust openings shall terminate as follows:

1. Not less than 3 feet (914 mm) from property lines.

2. Not less than 3 feet (914 mm) from gravity air intake openings, operable windows and doors.

3. Not less than 10 feet (3048 mm) from mechanical air intake openings except where either of the following apply:

3.1. The exhaust opening is located not less than 3 feet (914 mm) above the air intake opening.

3.2. The exhaust opening is part of a factory-built intake/exhaust combination termination fitting installed in accordance with the manufacturer's instructions, and the exhaust air is drawn from a living space.

4. Openings shall comply with Sections R303.5.2 and R303.6.