air-cool

Ms Porat said that the facility would be air-cooled rather than water-cooled and the heat "captured and redeployed to heat schools and homes".

It was initially due to be water cooled, but the US giant switched to an air-cooled system.

As the names suggest, air-cooled machines use air to transfer heat out of their systems, and water-cooled machines use water to do this.

With fully air-conditioned coaches and air-cooled stations, it is the preferred mode of transport for the city-dwellers.

Besides the energy efficiency, liquid-cooled cards have another bonus over their air-cooled counterparts — they take up significantly less room, meaning you can fit more of them in the same amount of space.