Chimneys of cupola furnaces, blast furnaces and similar devices, hereafter erected, shall extend at least twenty feet above the highest point of any roof within a radius of fifty feet thereof and be covered on the top with heavy wire netting or other approved spark arrester. No woodwork or other combustible material or construction shall be erected or placed within three feet of any part of such chimney.
(Ord. 42-1981. Passed 2-23-81.)