Any fuel burning heating appliance in day care or educational occupancies shall not be located closer than 10 feet from any required exit where only one exit is provided. Space heating appliances shall be properly vented in accordance with Chapter 9 of the Los Angeles Municipal Code (Mechanical Code) and applicable provisions of Part 4, Title 24, C.C.R. Any heater located in an area occupied by children shall have protective features incorporated into its design or a protective guard, screen, or other means to eliminate accidental contact with the heating appliance.