You can't see much from
this photo,
apart from the fancy case with a temperture readout on the door. The
thermocouple for the display is wedged under one of the CPUs. The
'fancy' plinth the case sits on is hollow and extends back into the
wall cavity and down under the floor. An opening beneath the front of
the case allows cool air from under the house to be drawn into the case
to keep things cool in summer.
