Alfresco 36 Inch Freestanding Grill with 660 sq. in. Grilling Surface, Three 27,500 BTU Burners, Integrated Rotisserie, Smoker and Herb Infuser System, 3-Position Warming Rack, Halogen Lighting, Nickel-Plated Control Knobs and Stainless Steel Grates: Liquid Propan : ALXE 36 36SZ PARTS MANUAL 1 : Page 15