Flaming Ambience Premium Mineral Glowing Rock Wool for Gas Logs Sets and Fireplaces. This new to the market product has been deemed the best 100% all mineral Rock Wool Ember. Flaming Ambience is just what it states, more than a word...A description of the feeling when you curl up with your favorite book, person, pet, and realize this it what life is really all about. Relax and enjoy the Ambience of this glowing ember. Can be used on a vented/ vent free (see your owner's manual first) log sets and fireplaces. For use with Natural/ LP gas Fuels. 6 oz. package with NEW FEATURE HANGING HOLE for convenient storage.