Indeed though the ones I've read about uses some type of liquid coolant for heat...

		rottyguy on June 27, 2011 \| parent \| context \| favorite \| on: Among the costs of war: $20 Billion in Air Conditi... Indeed though the ones I've read about uses some type of liquid coolant for heat/cool interchange. Just curious if circulating just air through the piping would suffice as a poor-mans implementation thus reducing the need for the above ground exchanger.