A heat exchanger system having an IT container having an inner chamber containing the media from which heat is to be pulled, and further having an outer surface to which is attached corrugated columns of thermally conducting material, cooling water pipes through the corrugated columns supplied with cooling water, at least the outer surface of the container and the corrugated columns is composed of metal and the outer surface of the container is separated from the inner surface by insulator material. It also contains a temperature monitor and controller for controlling the cooling system based upon the environment temperature to save energy.