Generally, tado° is compatible with your fully commissioned and functioning system boiler. tado° can also replace most existing controllers to control the heating and hot water.
In the UK, system boilers are usually installed with an external domestic hot water tank. The boiler supplies heated water to the hot water tank and one or more heating circuits. Such a system uses 2-port valves (S-plan system) or a 3-port valve (Y-plan systems) to divert the heated water to these different circuits. In such systems, room thermostats and programmers are not wired directly to the boiler. Instead, they are connected to the boiler via a wiring center.
If you have an S-plan or Y-plan system and have existing controllers connected to it, tado° can replace these controllers. If you have a new system boiler or want to connect tado° directly to your wiring center, it is best to get in touch with a heating engineer.
Some system boilers can be controlled via digital communication protocols. If you are not sure of your heating device models or want to check if tado° is compatible with your heating system, please contact us with helpful pictures of your devices.