Ceramic stone kits, pebble kits, lava rock, or other decorative media add decoration to your fireplace. Depending on the type of media used, they can help create a more realistic feel or add an artistic touch! Not all decorative media can handle heat in the same way. Certain types of media can only work with certain types of fireplaces or in specific areas of the fireplace. Electric fireplace media cannot work in a gas fire for this reason. When choosing media for the fireplace, choose ones that work with your fireplace fuel.