Grand Turbo 38-Inch Grill Built-In (Natural Gas) Built-in certification 304-grade cast stainless steel main burners (63,6000 BTU) and an infrared rear burner and rotisserie 304-grade stainless steel cooking grills with an 874-square-inch total cooking area Ceramic tile and stainless steel flame tamer system with electronic multi-spark ignition Double-walled 304-grade stainless steel hood and smoker tray with designated burner