Series HEC is a range of Peltier type chillers which are ideal for ensuring the constant temperature of circulating fluids. The series is available in either an air cooled (refrigerant free type), or a water cooled version. Available in a wide range of power supply voltages, the HEC offers outstanding cooling capacity performance of between 230 and 1200W depending on the selected model. Further benefits of the HEC s Peltier device is that both noise and vibrations are kept to an absolute minimum.