American Outdoor Grill 36 Inch Built-in Natural Gas Grill with Rotisserie All heavy duty 304 stainless steel construction. Advanced SR-18 stainless steel burners (with Titanium and Chromium). Stainless steel oblong vaporizer panels for even heat distribution. Accommodates charcoal or wood chips with ease. 10&#44;000 BTU rotisserie backburner made of Inconel stainless steel for durability.