Grill head features: 40,000 BTU total output. 434 square inches of main grill cooking surface - 178 square inches of warming rack. Heavy aluminum casting. 304 comercial grade dual Ultima burner. Battery ignition. 304 stainless steel rod Vari-Grid cooking grids. Stainless steel warming rack. Stainless steel rock trays with ceramic moon rock. Stainless steel control panel. Convertible brass valves. For Non-combustible installations only. Requires 8 inch clearance from back splash. Cutout Dimensions: 27 inches wide x 18 inches deep x 10 inches high