Convotherm 20 Tray Electric Combi-Steamer Oven - Boiler System - Disappearing Door C4DEBT20.10D .Capacity: 20 x 11 GN tray capacity. Shelf Distance: 68mm shelf distance. Control Panel: easyTouch 10 TFT HiRes glass touch display (capacitive). Steam Generation: Steam generated by a high performance boiler outside the cooking chamber. Cooking Methods (ACS+): Natural Smart Climate (ACS+) cooking methods include Steam, Combi steam, and Convection. Steam mode: 30 130C with guaranteed steam saturation. Combi steam mode: 30 250C with automatic humidity