We've got a sink that's all built in and while it has fairly easy access from under it, the cupboard below has been cut to fit the sink.
Got a new smart thermostat but struggling with the basics on wiring it in.
All photos attached of the existing wiring and the new.
I'm new here and while I have some DIY experience with electrics and plumbing*, I have very little with boilers and heating.
I have an...
Separate names with a comma.