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Thanks ianmcd. Think I’ll leave it on since it’s not an issue.

Hi everyone, I have recently moved house and updated the thermostat to Hive. Ever since, I’ve noticed that the boiler (Vokera Syntesi 25 E) has been firing once every hour or so, without CH or HW, for around 30 seconds. Is this normal? I cannot remember noticing this before I installed Hive but...

That’s the one. Can’t currently get a picture, but it’s a Satchwell TLM2253.

Brilliant. Thanks for your help. By “other two wires” I’m guessing you mean the black and red ones? Are they from the old thermostat?

Single channel.

Single channel, but I have a combi boiler so I assumed that was what I needed. Would the Hive still be wired into the same location with the Horstmann not being a receiver?

No wiring diagrams anywhere on the old Horstmann receiver no.

Hi all! Currently switching the old Horstmann H17 receiver out for a Hive but can’t find any wiring diagrams similar to what I’m looking at. Can anyone here make heads or tails of this, and help me out on the switch over. Thanks in advance!