Depending on your heating system, the tado° heat request is translated into a control signal that operates the boiler and/or radiator or floor heating valve:
For a radiator controlled zone the heat request corresponds to the levels of a conventional radiator thermostat opening state.
For heating systems controlled through a relay (on/off) signal, the request is translated into a “call for heat” with a varying duration. At a high heat request level the relay is closed more often and for a longer time than for a low heat request level.
Digitally controlled heating systems receive the proportional heat request directly in form of a modulated flow temperature.