RCA R-CTGC305SS 30 in. Century Collection Drop-In Gas Cooktop, 5 Burners, Cast Iron Grates, Metal Knobs in Stainless Steel. 5 SEALED BURNERS: 5 high performance sealed burners for a variety of cooking options, including an 12,000 BTU burner, a 8,500 BTU burner, two 6,000 BTU Burners, and a 3,500 BTU burner. BUILT TO LAST: Part of the Century Collection. Constructed of premium stainless steel that easily wipes clean with heavy-duty cast-iron grates for heat retention and distribution. ADVANCED SAFETY: Cooktop features electronic auto ignition for burner safety and efficiency.