§ 173. Heating. Every new dwelling shall be provided with heat in all living rooms sufficient to maintain the minimum temperatures required by local law, ordinances, rules or regulation, or by the local public health officer, provided, however, that such minimum temperature shall, notwithstanding the provisions of subdivision one of section three hundred twenty-nine of this chapter, be sixty-eight degrees Fahrenheit during the hours between six o'clock in the morning and ten o'clock in the evening during the months between October first and May thirty-first, whenever the outdoor temperature falls below fifty-five degrees Fahrenheit.