How to go about preventing a total system failure?
Before I had my new combi boiler and Tado installed I had an older system with a separate water tank. If that old boiler ever had issues I could simply use the condenser heater in the water tank and still have hot water.
Now that my new boiler has Tado connected, as far as I can see I cant even force the boiler back to manual mode if I needed to (it seems to need to be 'commissioned' by a plumber). If Tado/Boiler comms breakdown it looks like it could be a major issue.
So my question is really, in order to pre-empt an issue with the boiler being connected to Tado and no heating requests getting sent to the SRVs or hot water firing, what is my best bet?
I'm thinking I should buy a spare Tado wireless receiver and bridge, and the moment the boiler/tado stop talking to each other, call the plumber and give them the spare unit, or get them to set it to manual operation so it will actually provide hot water/heating?