Char-Broil Signature TRU-Infrared 420 3-Burner Cabinet Liquid Propane Gas Grill 420 square inches of primary cooking over porcelain-coated cast iron grates 155 square inch porcelain-coated warming rack, 13,000 BTU side burner Three top-ported 443 stainless steel tube burners for lasting performance and better temperature control Surefire Electronic ignition system offers a reliable spark at every burner Easily converts from liquid propane(lp) to natural gas(ng) with natural gas conversion kit (sold separately)