The EChotwatt is a self-limiting heating cable that is used for temperature maintenanceof hot water supply and other fluids that need to maintain a certain temperature.The self-limiting capability of the cable ensures that the output of the cableincrease or decrease according to ambient temperature. All self-limiting heatingcables must be over-temperature protected by a thermostat, as the output willdecrease, but never be zero , and be protected by a RCD with a maximum tripcurrent of 30 mA.EChotwatt ensures hot water in all taps and savings when circulation of the wholepipe system is unnecessary