OASE IceFree Thermo 330 is a floating system equipped with a heater that will prevent the complete freezing of your pool and will thus ensure the oxygenation of the water. This heater does not have a thermostat and must be plugged in when the temperature drops sharply. It can be installed in even a shallow pool, with a minimum of 35 cm. Product guaranteed for 2 years. The fish and other forms of aquatic life that take refuge in the winter in the deeper and therefore warmer strata of the basin cannot cope with the toxic gases released by the degradation of decaying plants and organisms under the ice. Locally limited water heating and silent operation do not interfere with the natural rhythm of life of the inhabitants of the basin in winter. IceFree Thermo 330 can be installed in all types of ponds, even shallow ones. It provides oxygen to the water by allowing toxic biogas to escape. The system is equipped with resistance heating equipped with a built-in thermostat which switches on automatically when the freezing point is reached. Characteristics : Consumption: 330 Watts Reliable operation at temperatures: down to -20 ° C. Power supply cable: 10 meters Dimensions: 300 x 135 x 334 cm Voltages: 220-240 V / 50 Hz Weight: 1.25 kg Integrated freeze controller: Yes