gen 3

Hi, I’ve just purchased a nest gen 3 to replace by heating controls and just wanted reassurance/guidance with the wiring before I go ahead as I don’t want too fry my boiler pcb etc. I currently have a glow worm 18hxi boiler and a British gas programmer and a Honeywell thermostat that hasn’t...

Looking for some advice on Nest 3rd Gen and Hive 2nd Gen installation requirements for my current setup, wonder if someone can assist in answering my queries. I'll start with an explanation of what I have and where I would like to get to and will drop a few photos here too. I have a Gas fired...