Hive multizone heating control

[poshram]

Does any one have any ideas if adding another Hive Active Heating™ thermostat and receiver to my existing hub means that the thermostat and receiver have to be installed as a pair unit (meaning each other knows about its MAC or identity code?) or I have to buy the official hive multizone kit?

I am only asking as certain people off ebay are selling the thermostat and receiver separately, and I was hoping to wire my under floor heating (that's on another zone form my main house HW) with another thermostat and receiver off ebay.

any help or confirmation appreciated.

 

[stem]

Even when the items are purchased as kits together, they are not supplied pre-linked. When a thermostat is first powered up, it will search for the receiver (via the hub I believe) before communicating, based on that I would imagine that separately purchased units will still work together OK. Though not having done it I can't say for certain.