A vented gas log set makes a great alternative to the hassle of building a log fire in your wood-burning fireplace. Just like a wood fire, a vented gas log set provides plenty of mesmerizing flames and flickering light. And when you are ready for bed, just flick the switch to turn it off – no waiting for the embers to die down. Vented log sets are considered decorative systems and must be installed in a vented fireplace with the damper open and may not operate by thermostat. Vented gas burners generate a fraction of the air pollution produced by burning wood and give off no errant coals or floating embers.