All rooms in hotels must be adequately heated and ventilated. Every habitable room must have at least one easily opened window or skylight, or such other device that adequately ventilates the room. Every hotel must have a heating system. The heating system must be properly installed and maintained in safe and good working condition capable of safely and adequately heating all habitable rooms, bathrooms and water closet compartments to a temperature of at least 70 degrees Fahrenheit at a distance of 3 feet above floor level under ordinary minimum winter conditions. (Mont. Co. Code 1965, §90-32; 2017 L.M.C., ch. 27,
§1; 2019 L.M.C., ch. 23, §1.)