The ovens
Before you use the oven you should wipe it out with a damp cloth to remove any dust.
Heat zones
Main Oven - There are zones of heat
within the oven. The temperature in the middle is the gas mark you have chosen. The top of the oven is slightly hotter and the lower shelf slightly cooler. The base of the oven is quite a lot cooler. You can make use of these heat zones when you are cooking foods requiring different temperatures all at the same time. If you are cooking more than one tray of similar items, for example cakes or biscuits, swap the trays around during cooking. Or you could remove the top tray when the food is cooked and move the lower tray to the higher shelf to finish cooking. Top Oven - You can only cook on one shelf at a time. You should turn food round during the cooking time.
The shelf in the top oven is different from the shelves in the main oven. You can distinguish the top oven shelf from the main oven shelves because it has a metal plate attached to it. The shelves provided for the main oven should only be used in the main oven. Similarly, only use the top oven shelf in the top oven. You can slot the oven shelves into any of five positions in the main oven and any of two positions in the top oven.