Never close the glass firescreen doors while a fire is burning in the fireplace. Never build too large a fire, to assure safe use of the fireplace. Always keep all combustible materials at least 76mm from the front of the fireplace when in use. Always confirm that the chimney damper is open before starting a fire and during use so that smoke will not exhaust into the room. Never put any volatile substance in the fireplace. Always confirm that no volatile liquids such as gasoline, charcoal starter, lighter fluid, lantern fuel, or paraffin are not located near the front of the fireplace.