so we're back on site at our smart home takeover and today we're looking at the central heating
controls and how we can make that smart so that means we're going to lose this traditional
thermostat here and replace it with this Netatmo smart thermostat i've got here now this thermostat
offers loads of options about how we can integrate it into the central heating system so let's have
a look at those now and what's in the box when we get it so here's our in the Netatmo smart
heating kit before we look at the thermostats check out this smart radiator valve we'll come
back to that later in the video but that's a great addition to the system and quite unique
in terms of thermostats we've got two options here we've got this one here that will work with
open therm modulating boilers that's a newer type of boiler
and this one here that works with traditional heating systems and boilers so we're using this
one because we're going to fit it to an s plan plus and it allows us another option in terms
of quickly getting a system up and running that this one doesn't so we'll put this to one side
the kit inside the box looks the same regardless of the system but just obviously software and some
of the slight hardware differences open up the box so here's our thermostat so this is the uh
yeah the bit that indicates the temperature and senses the temperature uh this here this is an
empty box so you'd think it is but this goes with this to form a clam shell design should
you want to just have your thermostat mounted on a on a table possibly by your bedside
dig a little bit further in the box here's our instructions yeah we love instructions interesting
to get these coloured surrounds if you want to accessorize the system at the end to choose
a color there's some various colored options in there obviously instructions yeah we'll read them
eventually here's our relay module and we also get this trim here so say the original store has
left it a little bit raggy around the thermostat you get a trim so you can tidy up the operation
inside here batteries so you will need those for the thermostat put in the back to power it
and we love it when they're included i've got some various wiring options so interesting one here so
say you didn't want to wire into your existing heating wiring and just replace the thermostat
you can add on the back of the relay you just plug this module in here and you can plug it into
a conventional plug top most people however will be wiring into a central heating system and here's
our connection to the relay to enable that so you get a hardwired connection here so we've got two
wires for our mains connection and two volt free contacts here to operate the relay and if you
want to wall mount the unit there's obviously this wall mounting bracket here and two terminals that
you can use to connect into an existing thermostat and that's the option we're going to look at first
which this one that's obviously the one for conventional heating systems so i'm
just going to remove our traditional thermostat so remember these again remove the front take it off
conventional backbox and as we suggested earlier we've left it a little bit raggy around the edges
so obviously we've isolated our circuit before we started doing that because these are the existing
wires that tap into our existing heating system and we're going to insert them into these two
contacts on our wall bracket for the thermostat so okay it's just a case of removing the
removing this screw there and there's our terminal so we'll bring that in and then
mount it to the wall so i made the connections i'm just bringing our again tidy up this edge
bringing our trim plate that you can fit on even when you put the wires in we'll just fix it back
to the wall and then we're ready to go so i've put our batteries in now remember this doesn't get
its power supply from the heating circuit itself it still still does new batteries like a lot of
wireless thermostats and i've added our coloured accessory there just to give it a little bit of
extra i'm just going to clip that onto the wall plate and there we go that's that part of the
installation done we're now ready to commission it so just add this 13 amp socket adapter to the
back of the relay module so we can get some power into it just remove the air freshener
again power up our relay so it'll go into a discovery mode so it's looking for the thermostat
which we've just mounted onto the wall and yes that pairing was all waiting for the thermostat
to display the temperature which means the commissioning is complete and now we have
oh it can't be that simple so we've removed our old bimetal strip thermostat and we've now got
digital control of our heating system gordon yeah and that's obviously without using an app at this
initial stage of the commissioning process the system works the keynote amongst us we'll call
them plumbers will notice that that is not a combi boiler however it looks very similar to a combi
boiler if it was that's where we'd need this wiring loom to be connected cables passed in make the
four electrical connections and then this which will hold our relay is secured within the area
once we've done so it allows us to click into place the relay like so okay then we can use this
which is the freestanding battery-operated thermostat in order to control the temperature
anywhere we like in the house by mobily moving it around so clip those together
and then we've got control of heating wherever we like in the house so this boiler is connected to
an s-plan heating system so let's have a look at that next so so far we've got away on this
installation without doing any wiring because it's not the type of system that we wanted to fit our
relays and thermostats to as gary mentioned this is an s plan but actually it's a little
bit further this is s plan plus well the plus meaning there's an additional zone valve because
the heating is split into two zones so you can see behind us we've fitted two relays one for
the upstairs and one for the downstairs heating and each one of those has their own thermostat
and but now here's the here's the bit if you've somehow wandered in here because you think we're
a diy channel we're not and the reason you need to get an electrician at this stage is the wiring
for s plan plus if you're unfamiliar with it can be incredibly complex now we've made a separate
video about what we had to do to be able to wire these relays into this system so check that out
if you haven't seen it already there is some great fun fun to be had by watching that video
so now we've put the relays in there again it's a four wire connection you need to
power the relay itself and then there's two separate wires to work the zone valve
but now that's done we've paired it we showed you how to pair earlier on
this if i turn this thermostat up you should see the upstairs heating burst into life so
we're all ready to cozy 21 degrees but let's uh let's increase the temperature even more
so you had the relay click in there so this isn't the relay is not used in here because this is a
wireless relay and we'll soon see our zone relay switch on we're expecting to see a white
led any minute now so you can see our heating switched on now from our wireless thermostat now
in some properties it may not have a zoned heating system and the next product that we touched on
at the start our smart radiator valve can allow you to add zoned heating to an existing heating
system so we're going to replace this traditional thermostatic rad valve with this smart one in
order to do so we must have a smart thermostat at least one somewhere within the installation first
of all we're going to put the batteries in it so we're going to do a little quarter turn there
peel it away i'm going to energize it with these two batteries provided like so
the right way around let's put that catch back into a position like that okay we
can put this back on and then we've got a lot of different adapters in order that we
can take this one off and fit it on i've already highlighted the adapter i'm going to need in order
to put this on simple tasks now so we just take it here we're just going to unscrew it
take off the original red valve like so take that away i'm going to put on my adapter
it's threaded on the outside and on the inside so just going to screw that one into position
and then we're going to take our smart thermostat rad valve and just put that over the top
just make sure the screen is obviously facing forward before you screw it down and you can
screw that into position how simple that was to do so once we've got that into position it's just a
simple little movement so one way or the other way in order to change the temperature of this
uh radiator here so just a little simple movement so you can see how quick that was in order to add
zone control to your heating system you can see it's currently searching for the relay
okay from that icon just there in order that we can commission that but how easy was that to fit
so i hope you've learned in this video how we can add smart heating control to an existing central
heating system and cope with almost any existing wiring configuration that can obviously be
incredibly easy or a little bit more challenging depending on how the configuration of the system
was done now if you're an installer and you want to find out more information about this check out
the Netatmo pro installer program below there's some great benefits for installers but you'll
notice in this video we installed most of the products without even needing an app and that's
again another advantage so you can do your first fix and then allow that final commissioning and
adding the smart app that goes with this possibly to the customer once they've moved into the house
check out the other videos that we've done on the netatmo range we've got
smart camera we've got smart doorbell we've got a security system as well again
all works together all available for the netatmo pro program but yeah check out those videos