messagenews: snipped-for-privacy@q12g2000yqe.googlegroups.com...
will do too..
conduction is not the ideal way of getting heat out of a box, but it does work.
Even through a plank of wood.
Rack design and rack kit design is 'interesting' heatwise.
MOST boxes suck from front or back and blow backwards.
Heat extraction by hot air extraction is the method..until you have seriously high power when forced blowing on the hot bits is needed. MOST racks are happy with floor ingress of air, and some form of overall either chimney or extractor fans in the top.
Generally the kit inside is blown well enough to stand ambient at
30C-40C: The job of the rack fans and the machine room aircon is to make sure they get that air temp.Or else put aircon in the racks themselves..