Reply To: H8000 heat and coolingBy IDeangelis / Home › Forums › Products › Rackmount › H8000 heat and cooling › Reply To: H8000 heat and cooling March 12, 2010 at 4:56 pm #120137 IDeangelisMember Hi Mikewe recommend to leave an open empty space on the top of the unit. That'll help dissipating heat.bestI