Digital Pro Controller with Advanced Grilling Logic. 20000 BTUs heat up 572 square inches of grilling space. Uses a convection process to circulate hardwood smoke throughout the cooking chamber. Shut down cycle. Rock solid all-terrain wheels. Main rack dimensions: 22″ x 19″. Extra rack dimensions: 22″ x 7″. Powered by a standard household outlet. Dimensions: 49″H x 41″W x 27″D.