AGA Cookers are unique. It’s a 100 year old design that basically works the same way the original wood fired units did.
AGA Cookers have one core heating element that heats the entire unit at once. When the unit is on, it's ready to cook in all the ovens and all the top burners, otherwise, it’s completely off.
The top plates are cast iron. You can cook right on them or use bake-o-glide.This 3 Oven Cooker with Module in Claret was a live display and was used for store demonstrations.