A vented/Vent-Free 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. Vented/Vent-Free log sets are considered decorative systems and must be installed in a vented fireplace. Includes Four Piece Log Set. Features Model # LS16C. Gas Type Natural Gas/Liquid Propane. Four piece log set. Log sets are hand painted. Approved for use in any certified vent-free firebox. LOGs ONLY Charred Oak. For use with slope glaze burner system. Specifications Overall Dimensions 16 L . Required Must Choose Burner to Complete Log Set. Compatible Burners Vent-Free 16-inch Slope Glaze MV Remote Ready Standing Pilot/Piezo Burner VFSR16LP . Vent-Free 16-inch Slope Glaze MV Remote Ready Standing Pilot/Piezo Burner VFSR16NAT . Vent-Free 16-inch Slope Glaze Burner with Remote Variable Flame VFSV16LP . Vent-Free 16-inch Slope Glaze Burner with Remote Variable Flame VFSV16NAT . Burner is shown in image, however not included in this product.