Baumatic BMC455TS - Manual (Page 39)

Built in with a warming drawer:
o
The diagram above shows the aperture and ventilation
requirements that you require to build the appliance into a
housing unit with a warming drawer below.
o
Ensure that the rear panel of the furniture housing unit has been
removed.
o
This oven may be installed without any additional ventilation cut
outs being made in the housing unit. However the ventilation cut
outs shown in the diagram MUST be present otherwise the
microwave oven may not function correctly. At the rear of the
appliance and at the top of the housing unit keep at least 100
mm free for air flow.
o
Do not cover the ventilation slots or air intake points.
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