Peterson Real Fyre 18-inch Evening Fyre Charred Log Set With Vent-free Natural Gas Ansi Certified G18 Burner - Manual Safety Pilot Peterson Real Fyre gas logs are meticulously hand painted to re-create the look of natural wood Superior refractory ceramic logs are reinforced with steel rods for greater integrity Efficient design helps preserve and protect natural resources This Peterson Real Fyre gas log set is designed for indoor use only All Peterson Real Fyre gas log sets are available in other sizes and with other valve control options