The Combi Ovens model C4 ET 20.10GS by Convotherm. Convotherm Combi Oven/Steamer, roll-in, LP gas, boilerless, (20) 13 x 18 half size sheet pan or (20) 12 x 20 x 2-1/2 hotel pan capacity, 9 easyTouch control panel, 20 stages each & 399 cooking recipes...