Peterson Real Fyre 24-inch Live Oak Log Set With Vented Burner, Match Lit (Natural Gas Only) 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 use with (LP) Propane Gas only