A desktop computing system having at least a central core surrounded by housing having a shape that defines a volume in which the central core resides is described. The housing includes a first opening and a second opening axially displaced from the first opening. The first opening having a size and shape in accordance with an amount of airflow used as a heat transfer medium for cooling internal components, the second opening defined by a lip that engages a portion of the airflow in such a way that at least some of the heat transferred to the air flow from the internal components is passed to the housing.