The facility must ensure:

(1) The heating system is capable of maintaining a temperature of seventy-five degrees Fahrenheit for areas occupied by residents and seventy degrees Fahrenheit for nonresident areas.

(2) Resident rooms must have individual temperature control which may be covered, locked, or placed in an inconspicuous place.

(3) Electric resistant wall heat units and portable space heaters are prohibited.

(4) The heating system must be connected to an alternate source of power, or an alternate source of heating must be provided to maintain the temperature in resident rooms or in a room to which all residents can be moved.