Drayton Wiser Home Heating and Hot Water 2-Channel Smart Thermostat Kit - 520780 £119.99 delivered @ City Plumbing

I have one of these - and it now has a cool additional feature that nobody has mentioned so far:

For £14.99 inc P&P direct from Wiser (order within the Wiser Heat app) you can get an "In Home Display".

It looks very similar to a Gas/Electric Smart Meter display, but it connects (wirelessly) to the Wiser control unit and sits listening to the signals from your Gas and Electric meter going to you normal Smart Meter display. Over time, it uses this info to calculate what your bills will be and even alerts you if you are going to exceed a monthly amount (that you may have set). It also tries to use machine learning about your power use, weather (forecasted weather) and heat loss etc, to try and automatically increase economy by adjusting your heating.

All this info is rendered in the (updated) app, alongside various reports (for those who are a bit nerdy about this sort of thing).

tompringle23/01/2022 22:44

Is this a straight plug in swap for the ep2002?

Pretty much, yes, but…….

There’s a YouTube video with a guy who had the same setup as me including the same boiler and he put up the wiring diagram. Saying that I did get a spark in to fit it as, give the time of year, I didn’t want to be without heating! Cost me £60, but it didn't appear complicated, straight one for one swap. Easier still if you have an existing Drayton controller as this fits straight on the backplate.

I’ve left the old thermostat in situ, set to highest temperature so that is always calling for heat, but the Wiser thermostat overrides that.

EDIT - I'll try and find the YouTube video and post it

EDIT - Well that's annoying, I can't find it!
Anyhow, here's a drawing I made at the time of "his" setup. The EP2002 has extra connections labelled A/B/C/D that the Wiser doesn't. This is due to the EP2002 also being a mini junction box, the wires don't have any function to the programmer so for the Wiser they can simply be joined together and forgotten about. There will also likely be a connection between Live and "5" on the EP2002, again you can ignore this with the Wiser. Then it's simply joining everything from Earth, Neutral and Live on the EP2002 to E, N & L on the Wiser and Hot water (3) and CH (4) on the EP2002 to 3 & 4 on the Wiser. 1 & 2 are left empty as per the EP2002
The numbers on the picture ( 0 2 0 2 2 4 0 0 1 1 1) are the number of electrical wires the guy on the vid had. My existing controls had no extra ones in terms of it being used a junction box (A/B/C/D).

(edited)

lonesomepuppet24/01/2022 23:48

What is this like compared to a hive or a nest ?

I switched from Hive to Wiser - and Wiser is significantly better. A few observations (after a month of use)...

Although the hub backplate was electrically the same, it physically wouldn't fit the new frontplate - so had to replace (like-for-like on terminals).

My Wiser TRVs were replacing Drayton TRV4 bodies so it each was a straight swap.

The TRVs do NOT form a communications mesh to connect back to the hub (relay). The only talk to the 'mothership'. This meant I needed a (fairly costly) range extender socket to provide a 'daughtership' to relay signals to the mothership. It's annoying that you can't control or even see in the app which TRVs or thermostats are connected to the main hub vs the repeaters. Only the support people can see this, and seemingly cannot reassign them.

This meant that distant units were trying to reach the main hub unsuccessfully, whereas some devices near the hub had pointlessly connected to the repeater - which can only support I think six or eight devices. I probably will have to reinstall all the units with the repeater disconnected and then power it up for the remaining ones that need a boost and hope they connect to it, not the main hub. It's annoying and something they could fix. At least the app could display signal strength per device and which receiver it's communicating with.

Also if you have say 3 rads in one room - all the TRVs have exactly the same name - so you can't easily identify them for troubleshooting.

The thermostat is ideal for rooms with several radiators - it overrides the on-board TRV temperature detection.

The app is fine (bar the frustrations with setup and the lack of device signal strength display).

It relies on third-party ITTT for geofencing.

I am unaware of any motion sensor to integrate to trigger boosts etc inside the Wiser (UK) ecosystem, unlike Hive.

Overall though - small but noticeable savings according the smart gas meter and an improvement in comfort vs Hive.

If you can get the TRVs at low cost (I bought mine in the Toolstation sale for c£32 each), then the system is good. Just wish they'd improve the device management - it's v frustrating to set up.

This is a great video on how to install for anyone asking.

Really like this system - have a single channel controller with 10 TRVs round the house. I'm not using the thermostat as you don't need it with the TRVs (and the variance in temp being close to the rad is a non issue for me). The app and customer service is good, home assistant integration works perfectly and it's very rarely missed a beat. Price wise it made a lot of sense to me when fitting a whole new system (valiant boiler with on demand HW hence just single channel on the controller). Note: I did replace all the valves the TRVs were driving in every radiator as well (since we had the whole heating done).

Negatives:
- TRVs do not like standard rechargeable batteries - yes they work but so will you in having the replace them very frequently indeed. Li-on may well work here but I've stuck with standard batteries - generally need two sets per annum.
- Reception: Drayton uses it's own zigbee network (annoyingly since I have my own too) and YMMV but in our house we needed a couple of drayton plugs (they are switches for plugged in devices but also function as active repeaters for the network) to keep everything talking. That said our house is some kind of 1940s faraday cage and all things wireless are a pain. This would be true of any system in my house but worth being aware of.
- Faults: in around 3-4 years i've had to turn the controller off at the mains maybe 2-3 times. TRVs sometimes become self aware, consider the meaning of life and sulk - also very rare. Pulling the batteries and reinserting causes them to reboot and recalibrate.

Overall really happy with it and *generally* it draws a lot less ire from her indoors than any other smart system in the house. I think you can't beat it for ease of use and the TRVs look a lot nicer than ones with displays attached etc. Love the fact you can just nudge the TRV to boost a room.

mo_194725/01/2022 18:55

Thank you very very much. Your post helped me to understand the system in …Thank you very very much. Your post helped me to understand the system in a better way than explained by the customer service team of wiser.Lastly, I'm assuming that 1 thermostat would be necessary, to go with (let's say 4 TRV's) is this correct?Is there a limit to how many TRV's can be controlled using a single thermostat? I would love to have this system but I need to understand this a little bit, as I will be relocating towards the end of the year and I'm not sure which boiler will be installed in the new house/flat. Hence all these questions.ATM my heating is on 24x7. I manually turn off all the radiators except for the one in use, which is expensive. When I go out with the family, sometimes unexpectedly we end up staying out for longer, these things do add up. Moving forward, the prices are skyrocketing, hence smart heating would come in handy. Read lessRead more

Technically, if you just wanted to use the sensors in the TRV's you don't need any wall thermostats. I use them mainly as a way to regulate the room temperature better and occasionally to adjust a particular room.

The set, as it's being sold here with just the hub and one thermostat (without any TRV's) doesn't really give you much extra, over what you'd get using any regular temperature/timer thermostat. The "smart" element in this set is the internet/app connectivity and some alogrithm to adjust turn on/off times based on weather and historical times it knows it's taken to reach a set temperature.

But, to answer your question, there is a "device limit". According to their website it's 16 heating zones (plus one hot water), with up to 5 devices in each, up to a maximum of 63 devices.

Just to clarify... if a "room" within the system just had a TRV in it, the TRV will use its sensor and "call for heat" and will open its valve based on the schedule for that room. If the "room" has a thermostat in it, then the thermostat sensor will be used instead and issue the "call for heat" based on the schedule for the room. Any TRV's in that same room will then open their valves. (edited)

Good price. There are many combinations and the names are confusing, so check out their product selector to know wiser.draytoncontrols.co.uk/pro…tor


I'm after the Wiser Thermostat Kit 3 which seems to be oos

barneyonion24/01/2022 12:03

There is no benefit to getting the 3 zone hub other than having a spare …There is no benefit to getting the 3 zone hub other than having a spare stat. Its likely you will need to change your backing plate anyway. There is a good video here that shows someone updating their backing plate from old one to the new drayton one. However if you click on that link for the three channel at least for the postcode that I tried its not available for delivery.[Video]Read lessRead more

In my case, the 3-zone was what I needed anyway. I was just trying to highlight that if you want an extra thermostat, it's a much cheaper way to get one than buying individually - and if you're planning to use the radiator valves, having separate thermostats work much better in my experience.

It sounds like the 3-zone isn't in stock though, so my post is probably fairly irrelevant anyway! (edited)

nakis7624/01/2022 11:21

Hi, I have an S plan two zone system (CH and HW), which means that I need …Hi, I have an S plan two zone system (CH and HW), which means that I need the 2 zone hub. If I was to get the 3 zone hub as you suggest in order to have a second thermostat (much cheaper that buying separately later) would the current wiring on the back plate need changing? Or would I leave them as they are and the 3 zone hub would revert to operating as a 2 zone one? Also, what is the benefit of having two thermostats? Thanks!Read lessRead more

There is no benefit to getting the 3 zone hub other than having a spare stat. Its likely you will need to change your backing plate anyway. There is a good video here that shows someone updating their backing plate from old one to the new drayton one. However if you click on that link for the three channel at least for the postcode that I tried its not available for delivery.

larry-the-second23/01/2022 20:26

Not a bad deal at all. Great system - had this for 18 months now. Has …Not a bad deal at all. Great system - had this for 18 months now. Has certainly been very welcomed whilst working at home and you only want to keep one room/area of the house warm. App is very good also. And unlike Tado this works when the internet goes down.Read lessRead more

Tado still works when the Internet is down from the controls on the thermostat and extension unit, it just can't be controlled by the app.

lonesomepuppet24/01/2022 23:48

What is this like compared to a hive or a nest ?

mo_194725/01/2022 03:49

Hi guys, I am new to this product. I have no idea on how this works. …Hi guys, I am new to this product. I have no idea on how this works. Secondly, will this work with baxi combi boiler. Thirdly, can I take this with me when I relocate?Read lessRead more

This package basically gives you a wireless thermostat with the ability to control remotely via an app, similar to hive / nest. The real magic comes from adding wiser radiator valves (TRVs) which turn each radiator / room into its own thermostat allowing you to schedule rooms to be on / off / different temperatures to each other whevever you want.

BulldogNo102/02/2022 15:00

Yes I did that in the app and it said my current smart meter didn't …Yes I did that in the app and it said my current smart meter didn't support it. It has to be a SMETS2 version. They were changed by Shell Energy two weeks ago but still not reporting any readings, it's a nightmare![Image]Read lessRead more

Might take a month or so to get registered with the industry, once they are reporting readings worth trying again.

I was following pricing of this for a while but sort of lost track so not voting on whether this is a hot deal or not. What I will say is this has been a great system allowing me to have absolute control over what rooms get heated to what temp.... when energy is costing more than ever it pays to be smart imo.

OFAH23/01/2022 22:59

Any of you folks know if it'll work as a replacement for an existing …Any of you folks know if it'll work as a replacement for an existing controller that's set up as follows:Water heating has to be on for boiler to fire (thus heating hot water cylinder). For radiators to heat central heating has to be on AND water heating. So basically hot water fires the boiler and central heating just opens a motorised valve. I contacted drayton customer service a couple of times with more details on my system and got absolutely no responseRead lessRead more

That's weird. I have called them a number of times on 0333 6000 622 and technical support has always been first class.

When you consider that the hive deal went super hot for £85 and that didn't include a hub, I think this is a bargain.

lonesomepuppet24/01/2022 23:48

What is this like compared to a hive or a nest ?

I've got this, I don't even understand what the Hive or Nest even exist for, they have less functionality for more money as far as I can tell.

Valves currently £34.38 each on Toolstation ebay site. ebay.co.uk/itm…8-0

creamola23/01/2022 22:22

I have one of these - and it now has a cool additional feature that nobody …I have one of these - and it now has a cool additional feature that nobody has mentioned so far:For £14.99 inc P&P direct from Wiser (order within the Wiser Heat app) you can get an "In Home Display". It looks very similar to a Gas/Electric Smart Meter display, but it connects (wirelessly) to the Wiser control unit and sits listening to the signals from your Gas and Electric meter going to you normal Smart Meter display. Over time, it uses this info to calculate what your bills will be and even alerts you if you are going to exceed a monthly amount (that you may have set). It also tries to use machine learning about your power use, weather (forecasted weather) and heat loss etc, to try and automatically increase economy by adjusting your heating.All this info is rendered in the (updated) app, alongside various reports (for those who are a bit nerdy about this sort of thing).Read lessRead more

How does it adjust your heating?

Good price - certainly the cheapest for a while. There weren't any decent black Friday deals on it last year, unlike the year before (when I bought mine).

Depending on your plans for the system, I'd recommend considering going for the 3-channel kit over this one, even if you only need 2 channels, especially if you plan to add the radiator valves at some point. It will quite happily work in 2 channel mode, and you get an extra thermostat with it (usually RRP around £95 on its own) for just £20 more.

I found that I got much more reliable temperatures using separate thermostats in the room, than just using the ones built into the radiator valves - probably because they're not right next to the heat source and having to accommodate/compensate for that.

cityplumbing.co.uk/Dra…903 (edited)

OFAH23/01/2022 22:59

Any of you folks know if it'll work as a replacement for an existing …Any of you folks know if it'll work as a replacement for an existing controller that's set up as follows:Water heating has to be on for boiler to fire (thus heating hot water cylinder). For radiators to heat central heating has to be on AND water heating. So basically hot water fires the boiler and central heating just opens a motorised valve. I contacted drayton customer service a couple of times with more details on my system and got absolutely no responseRead lessRead more

Hi, I dont think this setup will work. I will DM you.

Mutty24/01/2022 07:03

Will this work with a convention ideal boiler that's linked to a tank …Will this work with a convention ideal boiler that's linked to a tank system?Read lessRead more

If its gravity fed then no, you will have to install a pump. (edited)

creamola23/01/2022 22:22

I have one of these - and it now has a cool additional feature that nobody …I have one of these - and it now has a cool additional feature that nobody has mentioned so far:For £14.99 inc P&P direct from Wiser (order within the Wiser Heat app) you can get an "In Home Display". It looks very similar to a Gas/Electric Smart Meter display, but it connects (wirelessly) to the Wiser control unit and sits listening to the signals from your Gas and Electric meter going to you normal Smart Meter display. Over time, it uses this info to calculate what your bills will be and even alerts you if you are going to exceed a monthly amount (that you may have set). It also tries to use machine learning about your power use, weather (forecasted weather) and heat loss etc, to try and automatically increase economy by adjusting your heating.All this info is rendered in the (updated) app, alongside various reports (for those who are a bit nerdy about this sort of thing).Read lessRead more

I have this IHD and its a great add on. As its based on the GeoTogether.com kit, you can also use the GEO app with the same display if you like. If you are so inclined you can also integrate the geo data with Home Assistant.

Home Assistant integration for the Wiser stuff also works really well. Couple it with a Texecom intruder alarm and you can set away mode when the alarm is armed, heat occupied rooms etc using some Node Red flows.

The wiser range also has a 16A heat control relay that you can wire to control electric heat loads. I have one connected to the plinth heater in the kitchen so that all the heating can be controlled from the wiser app

OFAH23/01/2022 22:59

Any of you folks know if it'll work as a replacement for an existing …Any of you folks know if it'll work as a replacement for an existing controller that's set up as follows:Water heating has to be on for boiler to fire (thus heating hot water cylinder). For radiators to heat central heating has to be on AND water heating. So basically hot water fires the boiler and central heating just opens a motorised valve. I contacted drayton customer service a couple of times with more details on my system and got absolutely no responseRead lessRead more

Did you raise a ticket on the link below? Always been a great response to support and feature requests by them for me:

schneider-electric.zendesk.com/hc/…-gb (edited)

Cavs24/01/2022 19:28

Got this, shame the TRVs don't fully open tho.The turns need to be …Got this, shame the TRVs don't fully open tho.The turns need to be configurable to not only go up and down by 2 degrees of current temp for an hr. Still better than Tado in some ways imoWouldn't bother with their own IHD since some smart meter installers don't enable Wifi on the provided IHD.Read lessRead more

The Wiser IHD talks directly to the smart meters, it doesn't need the suppliers IHD so it doesn't matter if that has WiFi or not

Got this system including 2 TRVs for £85 just over a year ago on a ‘deal of the day’ and love it.


Have 4 additional TRVs (so 6 in total) in my Victorian terrace and the customisation is great.

easy install and setup, great app too. (edited)

its a very good system. BUT, the RF signal from the Controller is dreadful. Im in discussion with them about this. I ended up buying a plug (additional £30) which helps loads but the signal is just dreadful.. So think about the proximity of the controller (the thing by your boiler) to where the signal needs to go. If its two thick walls away it WILL struggle without assistance form a signal booster in the form of a smart plug from Wiser

Cavs24/01/2022 21:37

The motor retract and extend range is shorter than the TRV pin. Even a …The motor retract and extend range is shorter than the TRV pin. Even a fingertight install still does not let the pin fully spring up. Loose install means the motor wont push the pin far down enough to close too.Might need to adjust your lockshield if you get noisy waterflow from the TRV elbow.Read lessRead more

Tried calibration on the TRV?

ben.harris25/01/2022 19:12

Technically, if you just wanted to use the sensors in the TRV's you don't …Technically, if you just wanted to use the sensors in the TRV's you don't need any wall thermostats. I use them mainly as a way to regulate the room temperature better and occasionally to adjust a particular room.The set, as it's being sold here with just the hub and one thermostat (without any TRV's) doesn't really give you much extra, over what you'd get using any regular temperature/timer thermostat. The "smart" element in this set is the internet/app connectivity and some alogrithm to adjust turn on/off times based on weather and historical times it knows it's taken to reach a set temperature.But, to answer your question, there is a "device limit". According to their website it's 16 heating zones (plus one hot water), with up to 5 devices in each, up to a maximum of 63 devices.Just to clarify... if a "room" within the system just had a TRV in it, the TRV will use its sensor and "call for heat" and will open its valve based on the schedule for that room. If the "room" has a thermostat in it, then the thermostat sensor will be used instead and issue the "call for heat" based on the schedule for the room. Any TRV's in that same room will then open their valves.Read lessRead more

Thank you once again for the explanation. You have cleared all the doubts that I had

dangel26/01/2022 08:42

I worked around this easily enough as I'm using Home Assistant - and in my …I worked around this easily enough as I'm using Home Assistant - and in my case it's not just the heating I wanted to geofence :)They have been steadily adding features since I've had it though so you never know.Read lessRead more

Cheers. I'll take a look. I've already got a couple of Raspberry Pi's doing various things around the house, so looks like I could add Home Assistant to one of them quite easily.

Yes, they've definitely been adding lots of features since I've had it. This is the main one I've been missing from the Nest I had previously though and I'd have thought having it natively available would be a big selling point for them. It was certainly one of the main reasons I bought the Nest, prior to upgrading to the Drayton Wiser.

Ahers9901/02/2022 14:01

I currently have a hive system, but thinking of switching to this as also …I currently have a hive system, but thinking of switching to this as also want trv's and have heard mix results on hive trv's. Is this the pack I need to get started with Drayton? I have a combi boiler and wired the hive hub myself, was pretty straightforward. ThanksRead lessRead more

Yep, go for multizone pack 1 to get 1 channel hub (as you don't need hot water), roomstat and two trvs. Then pick up more trvs with that Toolstation link below.

BulldogNo102/02/2022 11:09

Sorry, haven't scrolled through the 3 pages on here, do you have a link to …Sorry, haven't scrolled through the 3 pages on here, do you have a link to this unit?I thought the hub just integrated with an existing SMETS2 smart meter which I've just had mine upgraded to?Didn't know there was a separate Wiser unit as well.Read lessRead more

In the Wiser App you need to choose 'unlock Insights plus'wiser.draytoncontrols.co.uk/ins…hts

rezaudio28/02/2022 12:32

Hopefully not too dumb a question ...I bought just 1 radiator valve to try …Hopefully not too dumb a question ...I bought just 1 radiator valve to try it out before committing to the whole kit, but it seems that you have to at least have the hub to use it. I thought that the radiator valves would still work manually without the hub, just by turning the dial.Please edudate me, as I can't fnid anythin on the company website!Read lessRead more

You have to have the hub so the TRVs can communicate with the boiler

Not a bad deal at all. Great system - had this for 18 months now. Has certainly been very welcomed whilst working at home and you only want to keep one room/area of the house warm. App is very good also. And unlike Tado this works when the internet goes down.

Bought this system from Toolstation via eBay store for £93 (20% off deal) and fitted on 6 January. So far, so good. Easily turn the heating up or down and gives control to schedule the CH & DHW for different times that the old manual Potterton EP2002 couldn't.
Might add some electronic TRVs at a later date for the bedrooms to control temperature upstairs during the day. (edited)

Do you need the Drayton Thermostats for each Radiator you wish to control? Or are there any generic branded ones which are compatible?

I've got my downstairs on wiser, my only issue is I didn't go and splash out and get it for my upstairs zone too.

Have a few of their TRVs too, faultless, all very reasonably priced compared to other systems, usable when internet goes down and no subscription.

Simon100623/01/2022 20:46

Do you need the Drayton Thermostats for each Radiator you wish to control? …Do you need the Drayton Thermostats for each Radiator you wish to control? Or are there any generic branded ones which are compatible?Read lessRead more

A Wiser TRV on a rad in a room monitors room temperature itself. I found in a room with 2 radiators, the best bet seems to be to put a Wiser TRV on both rads and stick a Wiser thermostat in the room.

It certainly does seem a very good system though it's easy days for me at the moment as it only went live a week back.

I've still got a couple of normal TRVs on the system (kitchen, hall and landing) but I'm tempted to get another TRV 3 pack and just go for it.

u66454123/01/2022 20:43

Bought this system from Toolstation via eBay store for £93 (20% off deal) …Bought this system from Toolstation via eBay store for £93 (20% off deal) and fitted on 6 January. So far, so good. Easily turn the heating up or down and gives control to schedule the CH & DHW for different times that the old manual Potterton EP2002 couldn't.Might add some electronic TRVs at a later date for the bedrooms to control temperature upstairs during the day.Read lessRead more

Is this a straight plug in swap for the ep2002? (edited)

Any of you folks know if it'll work as a replacement for an existing controller that's set up as follows:

Water heating has to be on for boiler to fire (thus heating hot water cylinder). For radiators to heat central heating has to be on AND water heating. So basically hot water fires the boiler and central heating just opens a motorised valve.

I contacted drayton customer service a couple of times with more details on my system and got absolutely no response (edited)

Will this work with a convention ideal boiler that's linked to a tank system?

hawkeye0123/01/2022 23:11

How does it adjust your heating?

As I understand, how most of them do it:

1. Say you set your thermostat for 20C and your heating to come on at 05:00 (because the Mrs wants the Bathroom to be toasty at 07:00). This device knows both current and predicted outdoor temperatures from internet weather reports - so if it knows that it is/going to be, warmer outside, then it could, for example, turn your heating on at 05:40, because it has learnt, for any given external temp, how long your heating takes to get up to the required internal temp.

2. Don't forget that this replaces your current room thermostat and as such, it will regulate the number of on/off boiler starts (to get to or maintain any given internal temp) to the number that is appropriate for a combi-boiler - which I think, don't quote me, is 6 starts per hour.

I forgot to mention, it also has Alexa integration. I am not a big Alexa user - so I don't know if it is good integration or not. All I know, is that I can say "Alexa - what temperature is it in the kitchen?" and that's sufficient for me.

Have a Valiant Boiler with manual thermostat (hav pins to set the timer) . How easy is this one be fitted ,hope need a boiler engineer or some one ?