[robochat]

I guess that I have a smart home albeit a cheap version. I have used sonoff smart switches to give me remote control of my flat's electric radiators. This has given me extra control over their schedules than available using their in-built interfaces. Plus I can turn them on remotely if I am unexpectedly coming home so the flat is warm when I get back.

I live in France and the radiators have a control pin that accepts various 230V AC waveforms (!) to set different functions but luckily simply on/off can be used to toggle between the radiators' high and low temperatures (that I set via each radiator's internal interface). It's crude but effective. I use an app to control the remote switches; I'm not totally happy about relying on a cloud based app but I can always bypass the remote control locally if there's an issue and in summer the radiators' are simply switched off so the risks are minimal.