Miele CS 1223 Operating And Installation Instructions page 28

Safety instructions for installation
Safety distance above the appliance
A minimum safety distance must be
maintained between the appliance and
the cooker hood above it. See the
cooker hood manufacturer's operating
and installation instructions for details.
If the manufacturer's instructions are
not available for the cooker hood, a
minimum safety distance of at least
760 mm must be maintained. For any
flammable objects, e.g. utensil rails,
wall units etc. a minimum distance of at
least 760 mm must be maintained
between them and the appliance
below.
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When two or more appliances are
installed together below a cooker hood,
e.g. an induction hob or wok and a gas
hob combiset, which have different
safety distances given in the installation
instructions, you should select the
greater distance of the two.