unit 64 fig4 that is located entirely within the interior of the housing 4 and forms part of a refrigeration system the evaporator unit 64 includes a coil 66 and a fan 68 located above the coil 66 the latter being adapted to draw air across the coil 66 and thereby cool the air the fan 68 discharges the air along the underside of the top wall 44 in addition to the evaporator unit 64 the refrigeration system includes a thermostat 70 fig3 which senses the temperature of the air within the enclosed space 52 and causes the refrigeration system to energize so as to maintain the interior of the housing 4 at a predetermined temperature preferably about 40 u00b0 f connected with the ice making machine b is a water line 74 that supplies the water from which the ice cubes are made the water line passes into and out of the housing 4 and within the lower portion of the enclosed space 52 it assumes the configuration of a coil 76 fig5 thus the coil 76 is practically always immersed in ice and as a consequence the water within it is cooled so that the water fed into the ice making machine b is.