Public halls. Every public hall, passageway, and vestibule in a dwelling unit shall contain at least one supplied ceiling- or wall type electric light fixture. Every public hall stairway in every two-family multifamily dwelling and rooming house shall be adequately lighted by an adequate lighting system, which may be turned on when needed by conveniently located light switches or by automatic means.
(3)
Every dwelling and multifamily dwelling shall have heating facilities, and the owner of the heating facilities shall be required to see that they are properly installed, safely maintained and in good working condition and that they are capable of safely and adequately heating all habitable rooms, bathrooms and toilet rooms located therein to a temperature of at least an average of 65° F.
(4)
Gas heaters or other portable heating equipment employing a flame do not meet the standards of this chapter and are prohibited.
(5)
Every multiunit dwelling and rental unit, and every single-family dwelling built or substantially rehabilitated after January 1, 2020, shall be equipped with such smoke and/or carbon monoxide detectors as required by RSA 153:10-a, provided, however, that a carbon monoxide detection device shall not be required if the single-family dwelling does not have an attached garage and does not contain an appliance or device that uses a combustion method of burning solid, liquid, or gas fuel. If a garage or combustion fuel appliance or device is later added to the dwelling, a carbon monoxide detection device shall be required.
(6)
All operating hardware or means of egress shall be operable without any special tools or special knowledge needed.
K.
General owner responsibilities.
(1)