Check with your local building authority to ensure these gas logs can be installed in your area before purchasing. Please message us to confirm availability prior to ordering. Contour Log Set / Burner Systems. Richly Detailed, Hand-Painted Ceramic Fiber Logs.Approved For Vented And Vent Free Use. Millivolt Burner Includes On/Off Log Switch -On/Off Remote Control. Includes Glowing Embers To Add The Illusion Of A? Log Set/Burner Combined Into One Package.