Is there a timer on the boiler then? I'm guessing it must be (unless there's none at all), if the thermostat has no switched live (or is it live - I've no idea)
The usual "smart" setup would be a programmer wired into the boiler, which connects wirelessly (or wired) to a thermostat and to some sort of hub / bridge (connected to your router / switch)
Nope. Only control seems to be the basic wall thermostat.
In my last place I fitted a netatmo thermostat which works with this kind of setup but it seems to be the only one from what I've seen and what you're saying.
Is there a timer on the boiler then? I'm guessing it must be (unless there's none at all), if the thermostat has no switched live (or is it live - I've no idea)
The usual "smart" setup would be a programmer wired into the boiler, which connects wirelessly (or wired) to a thermostat and to some sort of hub / bridge (connected to your router / switch)