Electric heating tapes are a rather energy-saving method to keep the pond bottom at a constant temperature in winter. We offer UV solid, self-regulating heating tapes of the highest industrial quality from Raychem. At places where the temperature is reached, the heating tape regulates down and lowers thereby the current consumption. An overheating by lying on top of each other is therefore not possible. For each 10 m³ pond, 10 m of heating tape should be provided. The bands are black and therefore hardly noticeable in the pond. Mounting racks are not necessary, the tapes can be laid out completely in the deepest pond bottom if possible. Several belts can be connected to one thermostat, for example to heat the filter chambers or to keep pipes frost-free.