Electric heater (3 kW)
An electric heater is installed to the same circulation with the filter system in order to keep the water temperature on a certain level. You can choose between 3 and 6 kW electric heater depending on the size (liters) of the hot tub. Electric heater may be used as an addition to another heating method (in order to keep the water temperature on a certain level) or as the only heating method of its own.
Installation and User Manual