GS4 E2i Electronic ignition. Porcelain-enameled, cast iron cooking grates. Primary cooking area of 646 sq-in. Tuck-away warming rack area of 198 sq-in. Total cooking area 844 sq-in. Four stainless steel burners. 48,000 Btu/hr input main burners. Stainless steel heat deflectors. Open cart design. Welded tube frame. Porcelain enameled lid with thermometer. Grease management system. iGrill 3 ready. Fuel gauge - LP models only (tank not included). Six tool hooks. Two heavy-duty front locking swivel casters and two large wheels. Porcelain enameled flavorizer bars. Dimensions with the lid closed are 45 in H x 61 in W x 29 in D.