Hi all,
Just realised I forgot to pull two cables from one of my underfloor heating manifolds heating controller to my boiler room.

One cable would be for boiler control (volt free output) and the other to tell the main pump (in boiler room) to come on (230 V max 6A). In both cases it’s just relays that open and close so hope it will be possible to use some wireless solution.
The main reason I would like to go that route is because it would take a lot of work to pull these cables (take down plasterboard already taped). The distance between both locations is about 50 meters (a U shaped stone barn).
Can anybody recommend a system?
Thanks,
Johan