Thanks for the replies guys, there were 2 x 3 cores in the wall at the existing stat in the adjacent utility room, which was melted by by an air fryer accident. I stripped the stat off and and connector blocked them to provide a basic live neutral and Earth in my boiler cupboard which Ive fitted a fused spur to. Could that have been your wiring centre?
I should point out that the connections in the photo I also completely removed, they were joined to the exisiting stat system in the adjacent utility room via a mash of connector blocks and a half arsed bashed up stat back plate, the core grips I removed for clarity.
Is there another component of this boiler in the house im not aware off?
My thinking was (which im thinking now may have been wrong) was that I could connect Hive to this boiler in the boiler cupboard coming off of a basic live neutral and earth and using the wireless hive stats provided, is this possible?
Horrific air fryer acccident attatched.