Grill away! The Sterling 50,000-BTU propane gas barbecue, with its large cooking surface of 644 sq. in. (4155 cm²), will allow you to make the most of the season with your friends and family. It is equipped with four stainless steel tube burners (40,000 BTU) and with one side burner (10,000 BTU). It also features the Flav-R-Wave(TM) stainless steel cooking system, a linear flow valve system, the Sure-Lite(TM) electronic ignition system, and an Accu-Temp(TM) thermometer. The cooking grids are made of enameled cast iron and the warming rack is porcelain coated. Backed by a 10-year limited warranty on the cookbox, a 5-year warranty on the burners, and a 2-year warranty on parts and paint.