Britannia supply two types of electric cooling unit and one evaporation type water cooling tower. The electric units are of that stand alone, recirculation type and can be conveniently located anywhere near the machinery line. They come in Chiller (above zero Celcius) and refrigerator (below zero Celcius) types. The Water Cooling Tower is a forced draft type where a descending spray of water is cooled by a current of air, drawn upwards by a fan.