Property Maintenance No person shall cause or permit any accumulation of brush or trees from land clearing to remain for more than six months. No person shall deposit or permit to be deposited any paper, straw, hay, shavings, or other combustible or flammable material in or among any ashes or other materials or things taken from any stove, furnace or fireplace. Every occupant of any building or premises who makes, stores, uses, or has charge or control of any shavings, excelsior, rubbish, sacks, bags, litter, have, straw, waste-paper, paper boxes or any other flammable material, shall at the close of business on each day cause all such material to be compactly baled or stacked ina safe manner, or stored in nen- combustible receptacles compatible with the Fire Code having tight fitting, non-combustible lids. Metal covers required on containers provided for the storage of combustible materials as set forth in Section 2.4.1.10 of the Fire Code, shall be kept closed at all times except when refuse is being placed in the containers. Where fire doors or fire separation devices are installed in any building to prevent the spread of fire within such building, such doors or devices shall at all times be kept and maintained in gocd repair and efficient working order. Fire Prevention Requirements Gas and electric heaters or plates, if used or maintained over wood shelving or tables shall he protected with non-combustible material over an area one and one-half times the area of such gas and electric heaters or plates. When the number of gas jets or electric heaters installed may generate an excessive temperature the Officer may require such further protection as in his opinion may be necessary. Gas plates and heaters shall not be installed under any wood shelving less than four feet distant from such gas plates and heaters and shall be at least 12 inches clear of any combustible material at the sides and back, provided that when woodwork is protected with a shield of non- combustible material extending at least 18 inches