A 1000W heater does not allow the temperature of the cooling liquid to drop below the predetermined value. This value is controlled by the internal thermostat. Made of a rigid aluminum body, painted with cataphoresis, which is resistant to the chemical components of the cooling liquid. The advantages of this heater are: water circulates according to the thermosyphon principle, temperature is maintained by an internal thermostat, can be installed directly on the engine, easy connection by cable, optimal dielectric strength, made in Italy.