I’ve just googled and you might be right here - I’ve message the landlord just to double check I’ve not missed a thermostat for the 3 years I’ve been living her 😂 thanks for your help

Unfortunately even though the boiler is relatively new it looks as though the landlord picked a model that has no timer function - it’s this switch for on or off and then two more dials that control the temp of hot water / radiators. I know it seems strange to me too hence why I want this so I don’t freeze over ahi this winter 😂