The top of the rack is considered to be the location which produces the greatest amount of heat. So, the specific placement of the racks can reduce the heat circulation from racks hot spots. The way that we can regulate this issue is by ordering rack components in a way that the more loaded equipment is placed on the lower racks and in such way we can ensure an optimal cooling. Since heavier equipment flow the most air, a lower rack placement will ensure that less heat is spreaded at the top of the rack.