Upgrading to Hive, help needed

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Hi, I'm currently wanting to upgrade my two thermostats to two Hive wireless thermostats that come with receivers and a hub. l've got a (relatively) new build with a Ideal H15 system boiler that has two thermostats (upstairs and downstairs) and a hot water tank upstairs. I've been trying to follow Hives install instructions but they don't tie in with what I have.

So my current wiring uses HW ON, CH1 ON AND CH2 ON. According to Hive I need wiring for Central Heating and Hot Water Off?? Am I missing something here or is there some change I need to make with the existing wiring to make it fit the Hive system?

I’ve attached pics of my current heating control wiring and Hives wiring diagram
 
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If your existing system doesn't use hot water off (y-plan) then the hive won't. Your existing system is likely a 3 channel, whereas Hive dual channel is simply this. So you would need an additional receiver to wire into the other heating on.
 
Sorry I should have mentioned, I have got another thermostat and receiver, am I right in thinking that it’s simply a case of looping the Live, Neutral and CH2 cable across to the 2nd receiver?
 
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Sorry I should have mentioned, I have got another thermostat and receiver, am I right in thinking that it’s simply a case of looping the Live, Neutral and CH2 cable across to the 2nd receiver?
Not quite, the single channel Hive has a slightly different wiring layout to the dual channel.
You would loop across L, N and Earth
 
As you have 3 channels in total: HW, CH1 and CH2. You will need:

1 x Dual Channel Hive for HW and CH1
1 x Single Channel Hive for CH2

I think you hint at having one with Hot Water control in your first post.
According to Hive I need wiring for Central Heating and Hot Water Off??
So, no worries if you already are aware of this and have it in hand, but you didn't mention it, so I thought I would. :giggle:
 

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