A Vented Gas Log Set installs in a wood-burning fireplace to provide all the ambiance of a real wood fire, but without the work of hauling in logs, lighting the kindling, tending the fire, and hauling out the ash. You simply light the fire when you want it and turn it off when you're done. Includes 11 Piece Log Set. Features Model # LTH1118. Gas Type Natural Gas/Liquid Propane. 11 Piece log set. LOGS ONLY Tree House Refractory Log Set. For use with See-Through Sand Pan Burners. Specifications Overall Dimensions 18 L . Required Must Choose Burner to Complete Log Set. Compatible Burners Advantage 21-inch Triple Match Light 75,000 Btu Burner AVL21MTEKN . Advantage 21-inch Triple Manual 75,000 Btu Burner AVM21MTEKN . Advantage 21-inch Triple Millivolt 75,000 Btu Burner AVR21MTEKN . Advantage 18-inch Double Match Light, 75,000 Btu Burner BXL18MTN . Advantage 18-inch Double Manual 75,000 Btu Burner BXM18MTN . Advantage 18-inch Double Millivolt 75,000 Btu Burner BXR18MTN . Burner is shown in image, however not included in this product.