Duraflame 927 9-pack Fire Logs, 5-pound, Burns up to 3-hours (1) Wax logs burn 80 % cleaner than wood, helping in reducing emissions and save trees Lights rapidly, producing full flames in less than five minutes UL accepted safety category for use in UL listed factory-built fireplaces Accepted by the chimney safety institute of America Case includes 9(nine) 5 lb. fire logs