It shall be the duty of every person owning or controlling the heating plant which furnishes heat to any office, factory or workshop to maintain a temperature within such office, factory or workshop of not less than sixty five degrees Fahrenheit without such undue restriction of ventilation as to interfere with proper sanitary conditions therein; provided, however, that this requirement shall not apply to any office, factory or workshop where the business conducted therein is of such a nature that a higher or lower temperature than sixty five degrees Fahrenheit is necessary or expedient for the work, trade, occupation or manufacturing processes of the business so conducted therein. (amd. Ord. 3873, 9-12-2022)