In a turbine log fire, the air is forced around the chamber and out of the outlet at the top of the fire on a two-speed fan. Warm air rises to the top of the room, pushing cold air down to the bottom of the room. This is then drawn in to the fire and the cycle continues. The advantage of this unique system is that all heat stays inside the chamber and does not disappear up the chimney, making our fires one of the most heat efficient and clean burning fires in the world.