Hi, My parents have just moved into a new house with a stainless steel free standing delonghi professional oven. We have no idea what model it is, or whether it is celsius, or farenheight, as all the number s bar what I think is '75' has rubbed off. it has 6 gas burners with a kind of oblong iron tray on the righthandside on the top. can you help at all ? cheers Caroline