Thr Video Recorder i have is quiet Old and the Producer could Not help me. So i w as very glad to find an offer for the owners Manual for a very fair Price.a I obtained the original Manual very quick and I am happy to have it now.
Text excerpt from page 9 (click to view)
Baking trays, dishes etc., should not be placed directly against the grid covering the fan at the back of the oven. Do not use baking trays larger than 30cm x 35cm (12" x 14") as they will restrict the circulation of heat and may affect performance. Advice on the effect of different materials and finishes of bakeware is given in 'Hints and Tips' in the appropriate oven section.
When roasting we recommend that you use the trivet in the meat tin. Fat and meat juices will drain into the meat tin below and can be used to make gravy. The trivet also prevents splashes of fat from soiling the oven interior. Note. The meat tin should not be placed on a heated hotplate as this may cause the enamel to crack.