>Duraflame® 4 lb firelogs provide a fast-lighting, hassle-free fire for all occasions. Up to 3 hrs of relaxing flames that are ideal for any night of the week. Lights quickly, full flames in less than 5 mins. Chimney Safety Institute of America accepted product. Burns cleaner than wood. Duraflame® firelogs are designed to light quickly with a single match, for beautiful, bright flames in under 5 mins.