Like an artist who can bring the beauty of nature to life, Real-Fyre artisans work from real wood samples to meticulously recreate the intricate bark detail and natural coloration of deeply charred wood. These Peterson Real Fyre Logs can be used with commonly available fire pit ring burners. Allow a minimum of 3-6 inches clearance from the edge of logs to the wall of fire pit. All logs have a flat, unfinished back or bottom. For use with vented gas log systems. This log set does not include a burner system. It must be purchased separately.