GAS LOG MAINTENANCE PRODUCTS     Gas logs should be serviced annually to help assure proper performance. Over time, the materials that help create the realistic gas flame will become worn and dirty, and replacing the embers and sand/vermiculite will help your log set perform optimally and look like new.   PLEASE CONSULT YOUR GAS LOG OWNERS MANUAL to determine the correct type of material to use and how it should be applied. Do not substitute materials or attempt to make alterations to your gas log set; doing so may cause damage to your appliance and result in dangerous malfunction.