Dual Stainless Steel Burners disperse flames evenly for 40 000 BTU of cooking power. 473 in. sq. of total cooking area and adjustable 2-Level cooking grids for grilling baking and warming simultaneously Push-Button Electronic Igniter. Dual Control knobs Porcelain-Coated Cast Iron Cooking Grids with Lifetime . Stainless Steel Built-In heat indicator. Adjustable Stainless Steel lid stop. Aluminum grill body castings with Lifetime . Stainless Steel bowtie burner with Lifetime . Retractable Stainless Steel Warming Rack with Lifetime . Stainless Steel flavor screen (standard). Propane.