thanks for the replies :)
Firstly, glad that I managed to get the wiring right :D
As for the thermostat / boiler / timer - there is an existing timer by the boiler. When I turn the switch off the LCD display of the timer stays on but it no longer controls the boiler which I presume...
Hello all - first post so be gentle!
Our old thermostat is on the way out and so, combined with the fact that it's very basic, I've purchased a new one. The old one is a Drayton RTS1 and I will be replacing it with a Honeywell CM907. It's connected to a combi boiler. Before I go ahead and...