The Tri-Flame Series brings a remarkable new technology to the field of vent-free gas logs. To duplicate the look of a real wood fire, these models include a glowing, coal bed at its base. The bright, glowing coals and flickering embers are achieved through the use of two unique technologies. The Tri-Flame burner offers the unusual feature of an additional row of flames behind the logs. The result is a distinctive appearance with a very deep flame pattern.