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Heating AND hot water

I live in an apartment building and I'm using a Siemens RAA30.26GR thermostat with 2 functions. One for hot water and one for heating. The building's gas boiler is an iron cast Master F 307 boiler. I'd like to know which Tado kit do I need to buy in order to be able to control both heating and hot water. I'm attaching some photos of the boiler installation.

Thank you in advance!