Bull Stainless Steel Premium 7 Burner Natural Gas Drop-In Grill This grill is made of 16 gauges 304 stainless steel. 105,000 BTU’s of cooking power come from 4 cast stainless steel burners with a 20 year warrantee. The solid stainless steel grates and firebox have a lifetime warrantee. It comes compete with a rotisserie kit and back burner. This unit also includes a front and back side burner for extra cooking and grilling flexibility. The side burners are equip with brass burners and give you a total output of 30,000 BTU’s.