KitchenAid 36-Inch 5 Burner Natural Gas Built-In Grill With Searing Burner And Rear Burner (Ships As Propane With Natural Gas Fittings). 740-0781NG. Built-In Gas Grills. Created for cooks who love to create meals for friends and family, KitchenAid offers long lasting grills that anyone can use and enjoy. This powerful, KitchenAid natural gas built-in grill features four 304 stainless steel burners that produce 12,000 BTUs each and has 698 square inches of main cooking area and 232 square inches of secondary cooking area for a total of 930 square inches. Angled flame tamers keep flare ups down and provide even heat distribution. The ceramic rear infrared burner is great for roasting chicken for rotisserie style cooking while the 15,000 BTU infrared searing burner sears meat to perfection for a restaurant quality steak. Starting the grill is simple with the easy-to-use electronic ignition powered by two AA batteries. Combined with a durable fully welded stainless steel, lined lid, this grill will be the center of your next backyard party.