In addition to the requirements and provisions contained in the Building Code of the City, all warm air heating systems hereafter installed, altered, repaired, or added to, in the City shall be installed, altered, repaired, or added to in strict accordance with the provisions for the installation of warm air heating systems as per current edition of the Mechanical Code as adopted by the City, insofar as such requirements and provisions are not in conflict with the Building Code of the City. (1978 Code Sec. 5-64)