3 ms·
If your device supports opentherm (which is not as open as you might think, btw) you might want to look into OTGW [0]. It probably works with Nest to if the Nes
by aequitas 7y ago
If your device supports opentherm (which is not as open as you might think, btw) you might want to look into OTGW [0]. It probably works with Nest to if the Nest allows to run without internet at all.
[0] http://otgw.tclcode.com/ http://otgw.tclcode.com/
- teekert 7y agoMy central heater is a simple on/off model. Nest will work offline with it but afaik you can't write target temperatures to it then.
- aequitas 7y agoTo bad, my old heater had opentherm, with the OTGW I could intercept the packets between the heater and thermostat, change values (eg: date/time), issue commands (set room temperature) and add missing functionality (outside temperature for heating curve), it was ideal in every way. But I moved and my current heater has a proprietary protocol over rs485 so its a no-go for the OTGW.
- teekert 7y agoIn the EU there are no systems without opentherm by law luckily. That does mean some systems are not available at all, so "luckily".