All petrochemical furnaces and petrochemical water heaters located in sleeping rooms, or in basements containing sleeping rooms, shall be separated from the sleeping rooms by an enclosure which shall consist of 5/8" Type X gypsum wallboard taped and spackled on both sides of all walls of the enclosure. The enclosure shall extend from floor to ceiling and shall be constructed to eliminate all openings in the enclosure. Access doors and panels shall be solid-core or shall be covered on both sides with 5/8" Type X gypsum wallboard. If combustion air cannot be supplied from the exterior of the structure or from another interior area of the structure, it shall be permissible to install louvered grills in the door, access panel or wall of the enclosure. Exception: Petrochemical furnaces and petrochemical water heaters located in sleeping rooms, or in basements containing sleeping rooms, that have previously been inspected and approved for occupancy shall be exempted from the requirements above provided that conditions and use have not changed and provided that it can be determined that at the time of previous inspections, the situation was deemed safe and acceptable to the inspector.
(Ord. 12, passed - -96)