Anyone know if this relies on external connectivity? ie. Netatmo's website staying online? So, if they go out of business the heating will be useless? Or, will most of its features be fine without internet connectivity? Basically, I like to keep my stuff as "dumb" as possible but having the ability to set basic stuff like timers would be useful.
The Thermostat and the Valves will continue to control the heating based on the current weekly schedule or the last setpoint applied before the connection was lost (Away mode, Frost-Guard mode or manual setpoint).
During the outage:
Remote interaction, schedule editing or adjustments will no longer be possible.
The physical buttons on the Thermostat or the Valves can still be used to force manual setpoints. The duration of these setpoints is then that which was defined before the connection was lost in the Energy app advanced settings: Operating mode > Default duration of manual setpoints (3 h by default).
The anticipation or Auto-Adapt function is also disabled because it relies on the outdoor temperature readings that are not available offline.
All functions of the Thermostat and Valves will automatically resume once reconnected.
Home Assistant uses Netatmo's API rather than local access. You might be able to do something funky using homekit integration with Home Assistant but looks complicated.
https://www.netatmo.com/en-gb/smart-thermostat
Anyone know if this relies on external connectivity? ie. Netatmo's website staying online? So, if they go out of business the heating will be useless? Or, will most of its features be fine without internet connectivity? Basically, I like to keep my stuff as "dumb" as possible but having the ability to set basic stuff like timers would be useful.
Sounds like yes
https://helpcenter.netatmo.com/hc/en-us/articles/5603989232274-Will-my-products-still-work-if-my-internet-Wi-Fi-goes-down-or-if-there-is-a-power-cut-
In the event of an Internet outage
The Thermostat and the Valves will continue to control the heating based on the current weekly schedule or the last setpoint applied before the connection was lost (Away mode, Frost-Guard mode or manual setpoint).
During the outage:
Remote interaction, schedule editing or adjustments will no longer be possible.
The physical buttons on the Thermostat or the Valves can still be used to force manual setpoints. The duration of these setpoints is then that which was defined before the connection was lost in the Energy app advanced settings: Operating mode > Default duration of manual setpoints (3 h by default).
The anticipation or Auto-Adapt function is also disabled because it relies on the outdoor temperature readings that are not available offline.
All functions of the Thermostat and Valves will automatically resume once reconnected.
https://wltd.org/posts/3-awesome-ways-to-use-a-smart-thermostat-entirely-offline
£250 lolz
https://www.amazon.co.uk/ecobee3-Smart-Thermostat-Works-Amazon/dp/B06W56TBLN