Every dwelling unit shall be provided with approved heating facilities capable of maintaining an average temperature of seventy degrees (70) Fahrenheit in all habitable rooms, bathrooms, water closet compartments and kitchens whenever the outside temperature falls below sixty degrees (60) Fahrenheit. Such inside temperature shall be measured in the approximate center of each room, approximately three (3) feet above the floor. The provisions of this section shall not apply where the failure to meet minimum standards is caused by a general shortage of fuel, a negligent or malicious act of the occupant, or any cause beyond the control of the owner or occupant.