DCS BFG30GN Liberty Natural Gas Grill Built In. BFG-30G-N. Built-In Gas Grills. This built-in DCS Liberty Gas Grill unit features a 494 sq in grilling surface, two stainless steel burners with Sear setting for 50,000 total BTUs of grilling power, the patented DCS Grease Management System, Ceramic Radiant Technology, double-sided cast stainless steel grilling grates, 9 volt battery ignition and comes with a stainless steel cover to protect the surface area. Cutout dimensions (in inches): 28 1/2 W x 22 3/4 D x 10 1/8 H.