20" by 12" standard opening that holds full-size pans with depths of up to 6" Heats frozen soups to safe serving temperature in 20 minutes 3 settings: low= 140 Degree, Medium= 170 Degree, High= 200 Degree Voltage: 1500W, 120V AC 60 HZ Energy efficient insulated heating compartment and indicator light for monitoring status Easy control settings that cook and keep food at the right temperature all day