Three stainless steel burners, Stainless steel FLAVORIZER bars, Expandable cooking grate area = 274 square inches, Flush electronic push button ignition system, 1 AA battery included, Total cooking area = 787 square inches, 39,000 BTU-per-hour input main burners, Primary cooking area = 513 square inches, 13,000 BTU-per-hour input Sear Zone burner, WEBER CRAFTED 9mm stainless steel cooking grates