Hive Single channel receiver for 2 zones

[SWD56]

Im looking to incorporate 2 heating zones into 1 using Hive.

The issue I have at a client's property is that the wiring centre is at the opposite end of the house from the boiler and where the new Hive reciever would be. Currently there is only a 3 core and earth from the boiler/reciever area to the wiring centre which leaves me 1 core short. Would it be possible to supply the L,N and E to the pumps locally at the wiring centre ( fused down ) and use 2 of the cores in the existing 3 core and earth plus the earth as the switch cores? this would mean that there would be 2 circuits at the wiring centre. I would clearly label this at both ends but Im just wondering if it is ok or a total no no? Thanks in advance

 

[Deleted member 267285]

Where are the existing thermostats and zones wired?

 

[ericmark]

As far as I am aware, Hive two zone is CH and DHW, the Drayton Wiser does a twin CH and DHW but not Hive. So only way to get Hive to do both zones is using on/off (digital) system, it does not have the option to work with Opentherm.

 

[SWD56]

Where are the existing thermostats and zones wired?

1 thermostat upstairs and 1 downstairs. Both wired back to joint box on first floor next to the 2 x 2port valves then a 3 core and earth is wired down to the boiler in the garage

 

[SWD56]

As far as I am aware, Hive two zone is CH and DHW, the Drayton Wiser does a twin CH and DHW but not Hive. So only way to get Hive to do both zones is using on/off (digital) system, it does not have the option to work with Opentherm.

It is fed from a combi boiler so no need for the hot water call. The client wants to scrap the 2 zones and just be able to control everything from 1 hive thermostat

 

[Deleted member 267285]

1 thermostat upstairs and 1 downstairs. Both wired back to joint box on first floor next to the 2 x 2port valves then a 3 core and earth is wired down to the boiler in the garage

So could the new receivers not be placed there then?

 

[SWD56]

So could the new receivers not be placed there then?

Wouldn't I still require 4 cores plus earth from the boiler rather than the 3 core plus earth which is currently wired?

Live
Neural
Earth
Heat on
Heat off

 

[Deleted member 267285]

Wouldn't I still require 4 cores plus earth from the boiler rather than the 3 core plus earth which is currently wired?

Live
Neural
Earth
Heat on
Heat off

You don’t need heat off, it’s rarely used. They’re spring loaded motorised valves, powered open, spring return.

 

[SWD56]

You don’t need heat off, it’s rarely used. They’re spring loaded motorised valves, powered open, spring return.

Great thanks for your help

 

[stem]

The client wants to scrap the 2 zones and just be able to control everything from 1 hive thermostat

If it's a newish build, the requirement for two heating zones was introduced, I think, in around 2010 as part of the building regulations (Part L) as a bid to save energy. The concept is that rooms that are in regular use when the property is occupied are on one zone, and the second zone is for bedrooms that are only generally used at certain times of the day, so don't need to be heated for as long.

If that's the case with this property, converting it to one zone would put it in contravention of the regulations, although I can't imagine anyone will check, but it might cause a problem in the future if the property is surveyed prior to a sale.

It is possible to install two single channel Hive thermostats, one for each zone.

 

[ericmark]

As @stem says, but an electronic TRV does create a zone, so using Hive single with Hive TRV heads would comply. However there is just £2 diffrence between Hive an Wiser TRV heads, and the Wiser ones promise to do so much more.

I will admit in a similar position, my Nest is useless, but hard wired, does not rely on a battery. So considering a second thermostat in parrellel, already have 9 programmable TRV heads, not designed to link to any wall thermostat.

So which, cheap Hive, or higher quality Wiser? leaning towards the higher quality wall thermostat.