This Cool Cell has 7 vertical fin radiators mounted above the enclosure.  Each radiator is plumbed to a 20 gal. reservoir suspended below inside.  The individual reservoirs maximize surface area to absorb heat.  The radiators on top are  plumbed to a common expansion tank  which makes filling easy.   The equipment was placed on the floor of the enclosure under the reservoirs.  Heated air convects up between the reservoirs, is cooled and returns to the floor to cool the electronics.  This Cool Cell and Air monitoring System was trailer mounted and moved around the Joshua Tree National Park.   The enclosure and electronics stayed at least 5 degrees C. below the ambient temperature even when the daily high was 40 C. The internal heat load was a continuous 150 watts.

Cool Cells must have full view of the night sky to function properly.