3 Stainless steel burners. 36,000 BTU-per-hour input, and a 12,000 BTU-per-hour input side burner. Electronic Crossover® ignition system. Porcelain-enameled cooking grates, and a Porcelain-enameled Flavorizer® bars. Primary cooking area = 424 sq. in. Warming rack area = 112 sq. in. Total cooking area = 536 sq. in.