Opentherm and power supply for Tado Extension Kit
I decided to try to use Tado smart thermostats. My current setup with an existing thermostat is simple 24V on/off control. My boiler supports support OpenTherm connection though. Will it make any difference by connecting Tado Extension Kit via OpenTherm or it's better to stay with existing low voltage connection scheme? As I understand Tado devices are already "smart" enough and there will be no real effect in using OpenTherm?
Another question, if I decide to connect via OpenTherm to my boiler I have to provide separate power supply for the Extension Kit. Will it be sufficient to just to wire extension kit (N and L) to regular 230v electric outlet?