Tylortwocities I really appreciate your reply. I was of the idea that someone decided to cut corners. Only moved in a year ago and found it like this. I'll try it out later and update you Thanks
I have been given a HIVE pack as a gift and I've tried to replace the honeywell receiver unsuccessful. As you can see from the photo there is only 1 (3) core cable currently coming out of the boiler to the honeywell receiver. Live and neutral very straight forward but wired to the same live...