The Kooltube is a holdover or latent heat storage system. The completed unit comprises a single phase or three phase condensing set coupled to eutectic beams mounted internally to the roof of the body.The Kooltube is one of the simplest refrigeration systems and has been around in its basic configuration for many years. Simply, it can be compared to a block of ice in a glass of water or to the freezer pack which you freeze in your fridge at home and put into a cooler box to keep your drinks cold. The system is plugged into a electrical supply until the tubes are properly frozen, unplugged, and then the vehicle used for its delivery round.
Unit capacitiy and mass