White Mountain Hearth gives you a natural look combined with optimal heat in their 18″ Birch Vent Free Log. The contour of each ceramic fiber Birch log along with the height of the stack makes this vent free log set from Empire the perfect companion for the burner pattern to create a lifelike fire. The popular Slope Glaze Burners raise the standard for dancing flames. Internal ceramic beads tumble the gas to create especially realistic flame action. Your White Mountain Hearth Vent-Free log set creates a consistent, controlled heat – without hazardous flare-ups or chilling die-downs. These gas logs warm your room quickly and efficiently, while using about half the energy of a vented gas log.