The Building Inspector shall cause to be inspected at the time of the final inspection of any construction, all electrical, gas and coal-powered appliances of every nature that are installed within the structure, paying particular heed to proper installation in accordance with manufacturers' instructions and the safety provisions of this Building Code and other ordinances of the City. No final certificate of approval shall be given until all such appliances are in proper and safe working condition. (Ord. 8892. Passed 11-6-57.)