Thermostat control the temperature of the room by either measuring air or slab temperature and sending an electrical signal to open or close the flow of warm water to the pipe circuits servicing that particular zone via solenoids or pump control.
A home can be serviced by a single thermostat controlling water flow to all circuits or split into multiple zones with numerous thermostat which individually control different areas/room
REHAU offers two types of control options:

– NEA- 24V digital control system
– ARD-UFH- 240V digital control system