central heating wiring

Hi all, Long time listener, first time poster but this forum has been invaluable to me in my recent heating system exploits. I live in a late Victorian house with what seems to be a heating system installed in such a way as to save a bit of cash wherever possible. As far as I can tell it's a...

I am attempting to replace my Central heating and hot water programmer (Honeywell st6400c) with the tado extension kit, I already have a tado smart thermostat installed on a hard wired room thermostat. When looking at the junction box wiring beneath the programmer it didn't seem to match any...

I have a Danfloss tp9000 programmer and TS2 room sensor which is controlling the Ideal Heat 15 system boiler. I'm trying to replace it with a smart thermostat by Nest, replicating this set up https://d3vlabs.com/2016/12/09/install-nest-tp9000-ts2-danfoss-3rd-gen-uk/ There are 3 lives, 3...