Every standard Narvi electrical heater comes with a control unit included. In the smaller models (Narvi Minex & Narvi NM), the heater is controlled with manual buttons that are attached to the heater. In the rest of the heaters, the controller and the temperature sensor are external. The external controller is easy to use, and it can be placed either inside or outside the sauna room.
The sauna heaters designed for public saunas (Narvi Ultra & Ultra Big). The Ultra Big-series (18-33kW), the C-2003 controller with 14 memory slots is required.
