The Combi Ovens model C4 ED 10.20GS by Convotherm. Convotherm Maxx Pro Combi Oven/Steamer, natural gas, boilerless, (10) 18 x 26 full size sheet pan or (20) 12 x 20 x 1 hotel pan capacity, easyDial programmable controls with digital display 9-stage &...