Once the air temperature has been cooled, then this air will move through the condensing cube which will quickly reject the heat in the circulating water that is moving through the condensing cube. 

Ideally, the water used for the cooling tunnel will be condensate water that is collected from the evaporator cubes inside the house. However, the cooling tunnel can also use normal tap water to provide the cooling if outdoor conditions are extremely hot and dry. 

The cooling tunnel can deliver 50%-70% improvements in cooling efficiency, which is the same heat rejection efficiency of deep well geothermal, but without having to incur the high costs of drilling wells into the ground. The system can be installed into any size house or commercial building and can be scaled to reject the heat from multiple condensing cubes.