Would like to switch to a Hive Mini, but unsure which version I need?

[Dorzey]

Apologies if it has been covered, I did sift through the countless Hive related posts but…..

I have an open vented heat only conventional boiler controlled by a room thermostat for the heating and a separate clock controller for the hot water.

I want to leave the water system as is and just replace the existing room thermostat for the heating.

Can I get the single channel version of the Hive Mini or do I need the dual version, conscious that I won’t be using the hot water functionality?

Current receiver is a Honeywell BDR91 and is wired according to the attached photo. What needs to go where on the Hive?

 

[CBW]

Yes, if you’re only replacing the thermostat, then a single channel is all you need.

 

[Dorzey]

Thanks, any idea on the wiring?

 

[CBW]

Thanks, any idea on the wiring?

Yes, similar to the BDR91. So you transfer as follows from BDR to Hive (tidying the wires so no copper is exposed):

L to L
N to N
Reuse link from L to Common
Grey wire (B) to Heating on (NO - terminal 3)