9-2-6: LIGHT, VENTILATION AND HEATING:
   A.   Lighting And Ventilation: Every habitable room shall have at least one window or skylight facing directly to the outdoors. The minimum total window area, measured between stops, shall be ten percent (10%) of the habitable floor area of such room. If the only window in the room is a skylight type window in the top of such room, the total window area of such skylight shall equal at least fifteen percent (15%) of the habitable floor area of the room it serves.
      1.   In every habitable room, at least forty percent (40%) of the window or skylight required shall be easily opened unless one of the following methods of ventilating the room is approved:
         a.   For inside the habitable rooms, a wall area equivalent to twenty percent (20%) of the floor area must be open into a room with adequate light and ventilation; provided, that in such cases, the window area shall be at least eight percent (8%) of the total floor area to be served by such windows.
         b.   Kitchens may be equipped with a ventilation system capable of continuous operation.
      2.   Bathrooms and water closet compartments may be equipped with a ventilation system which is capable of continuous operation.
      3.   Whenever walls or other portions of structures face a window of any room and such light obstruction structures are located less than three feet (3') from the window and extend to a level above that of the ceiling of the room, such a window shall not be deemed to face directly to the outdoors, and shall not be included as contributing to the total required window area.
   B.   Electricity: Where there is electric service available, the dwelling shall be supplied with electricity and shall meet the following requirements:
      1.   Every habitable room shall contain at least two (2) separate wall type electric convenience outlets or one such convenience outlet and one supplied ceiling type light fixture.
      2.   Every water closet compartment, bathroom, laundry room, and public hall shall contain at least one ceiling or wall type electric light fixture.
      3.   Every public hall or stairway in or leading into every multiple dwelling shall have a minimum of one foot-candle or illumination measurable with a standard light meter at floor level in halls and at tread level on stairways when the structure is occupied.
   C.   Heating Facilities: Every dwelling unit shall have heating facilities which are properly installed, are maintained in safe and good working condition, and are capable of safely and adequately heating all habitable rooms, bathrooms and water closet compartments therein to a temperature of seventy degrees Fahrenheit (70°F) at a distance three feet (3') above floor level at an outside temperature of zero degrees Fahrenheit (0°F). Such heating equipment shall be operated as is reasonably necessary to maintain a temperature in all habitable rooms at not less than seventy degrees Fahrenheit (70°F). (1985 Code ch. 4 § 7-6)