This AOG, American Outdoor Grill, built-in natural gas side burner features 304 series stainless construction, a brass burner producing 15,000 BTU, stainless grate and stainless flip down lid. No insulated jacket required for combustible installation. Built-In opening required (in inches): 8 3/4 wide x 14 1/4 deep x 6 high (Inches). This American Outdoor Grill Drop-in Natural Gas Single Side Burner converts to Propane.