Thermos 4-Burner Gas Grill Thermos 4 burner, 48,000 BTU gas grill with 10,000 BTU lidded side burner 480 sq. in. of primary cooking on porcelain-coated cast iron grates plus 208 sq. in. of secondary cooking on porcelain-coated swingaway Large, painted metal side shelves offer lots of workspace Stainless steel insert lid adds style to this model Electronic ignition system offers a reliable spark with every push