Our IceFree models ensure that your pond has a stable oxygen supply and aeration in winter. The 4 Seasons model can be used all year round with various functions. In winter, it creates an ice-free area around itself at temperatures as low as –20°C. In summer, it can be used as a water feature. The Thermo model is suitable for shallower ponds. Although it doesn't provide a water feature, it does have a frost monitor function. A sensor is activated when the air temperature is expected to freeze, which makes the model very energy-efficient.