#2 Can a built in Microwave (Bosch BFL634GB1B) sit above this oven, if so what is the size of the gap between the ovens, if any.
This microwave does require a shelf to sit on. There needs to be a cut out at the back of the cupboard for ventilation, the size depends on whether its installed into a tall unit or a cupboard. We have attached a copy of the installation which shows the measurements required.