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Thanks for all your help. Swapped the Hive and Nest so my Hive TRV’s are now working with the Hive thermostat. I did a silly think and not switch the power off when I was putting the Hive wall plate back on, thought I would be able to do it carefully…. Had a little shock…..

When I tried to thread the trv onto the adaptor it didn’t seems to go on easily, like something was stopping it. So thought it was perhaps the adaptor being wrong for the valve.

Hey I just got some Hive TRV’s and realise my current valve is a Caleffi, can anyone confirm this and does anyone know where I can get adaptors from?

Then the same cabling for the Heatlink where the Hive was? @RandomGrinch so I disconnect the brown and blue cable that goes into the T1 and T2?

This is the heat link, so would the Hive go: Blue to N Brown to L then L to 2 Then that other brown looking cable to 3 For the thermostat at the end I just keep them unplugged?

Hello Yes, it is wired from the thermostat to the heatlink. I have a stand for it to go in. I will try and snap a photo of the Heatlink this evening. Thank you all for your help!

OK, so now looking at the Hive more and buying Hive TRV's, I realise that the Hive should be on the MAIN heating (radiators). I can then use HOD (Heat On Demand), so could keep our hallway at 18oC then other rooms hotter if needed, without the whole house warming up. Would swapping the Nest and...

To explain more. Measurements are approx We had a 4m living room and a 3m kitchen. Had the wall knocked down and a 4m extension build. The old kitchen and extension has UFH and the old living room a radiator. When I had the thermostat in the old kitchen, I think the radiator from the front...

Now where to potion the thermostat? I might put it in the kitchen…. We have such an odd setup here!

Done and all working thank you all!!

Doing it now….

Stupid question, but how to you run the cable to the back of the receiver? There is nowhere for the cable to run up.

Want to be able to control our UFH from an app, rather than the dumb thermostats

If the PCB blew, is it a write off or needing an expert to fix it? It’s one of them things where it’s 99% going to work but always that doubt

What’s the worst that could happen? Blow the boiler? Or would it just not work?

Doing it wrong. But it seems so easy

Aborted the job, was too nervous Might try tomorrow.

Yes the receiver only has a fire button. I have a smart meter so get gas usage via them various apps Thanks for your help, will let you know how it goes.

The cost, was cheaper getting the Hive. Mainly use Alex to control all our house smart things. When you say single channel, do you mean only heating button on the receiver?

Hi all I have a combo boiler. A Nest controls our radiators and the Honeywell our Underfloor heating. So the cabling is spurred from the boiler already. I want to replace the Honeywell wireless receiver for a Hive. This is the current wiring for the Honeywell. Is it a straight forward change...