Netatmo Smart Radiator Valves (TRV heads) in stock £49.99 at Maplin, and 37.5% cheaper than Netatmo.com
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Netatmo Smart Radiator Valves (TRV heads) in stock £49.99 at Maplin, and 37.5% cheaper than Netatmo.com

£49.99£79.99 38% Maplin Deals
39
Edited by:"strelitzia"Found 27th Oct
Finally in stock at Maplin, and now £30 less than the Netatmo website.
Multizone your heating !
Use alongside the Netatmo Thermostat (not included) to control your radiators with your phone• Wirelessly connect to your home Wi-Fi router• Compatible with Amazon Echo and Apple HomeKit• Set a temperature for your radiator• Replaces the head of existing thermostatic valves (TRVs)• Runs off two AA batteries (included)• Save money by only heating the rooms you want when you want

Top comments

Good deal on price but having to buy the thermostat and all these valves to fit round your house, your looking at 10-20 years before you save anything. Guarantee the app will stop working in the next 5-10 years leaving you unable to control them. Meaning they are not really worth it.
39 Comments

Good deal on price but having to buy the thermostat and all these valves to fit round your house, your looking at 10-20 years before you save anything. Guarantee the app will stop working in the next 5-10 years leaving you unable to control them. Meaning they are not really worth it.

To be clear - multi zone central heating is a different thing, this does nothing more than let you control the radiator thermostat valves remotely rather than physically twisting the knob.

45ure28 m ago

To be clear - multi zone central heating is a different thing, this does …To be clear - multi zone central heating is a different thing, this does nothing more than let you control the radiator thermostat valves remotely rather than physically twisting the knob.



it still gives you multi zone heating though right, meaning if you can control which rads are set to high and which are set to off, its a kind of zoning system. and im sure theres plenty of customisation available to not change each rad every time.

Doesnt a 20 quid trv valve do the same ?

EN1GMA13 m ago

it still gives you multi zone heating though right, meaning if you can …it still gives you multi zone heating though right, meaning if you can control which rads are set to high and which are set to off, its a kind of zoning system. and im sure theres plenty of customisation available to not change each rad every time.


Well yes but by that definition any rad fitted with a vale or thermostat would do the same - this just let's you do it remotely. Multi-zone central heating is driven from the boiler, for example just sending heating to the upstairs rads.

hooray.henry13 m ago

Doesnt a 20 quid trv valve do the same ?


Only if you walk round the house altering the valves and you have no real idea of the room temperature and you can alter temps by time of day and remotely.

The the recently launched Drayton Wiser looks better value as the thermostat heads are only £35 each

I never even turn the knob on a thermostatic valve. Always at max. The main thermostat is where its at.

Edit: just turn down the ones in rooms that dont warrant full heat but never on zero.
Edited by: "ssc1" 27th Oct

These valves allow you to set individual temperatures and time schedules for each radiator, so you're not heating rooms that don't need it when no one is in them.
Why heat all the bedrooms during the day? I work from home alone, so why heat the whole house all day when it's chilly?

And also, I spoke to Netatmo, and they are adding the facility for each trv to call for heat from the boiler directly, so that you don't have to rely on the main thermostat itself.

Wish NEST (Alphabet) would relese something similar, shicked neither them or Hive have done so.

Evohome trvs are cheaper and will likely be supported for ages

bilbob11 m ago

These valves allow you to set individual temperatures and time schedules …These valves allow you to set individual temperatures and time schedules for each radiator, so you're not heating rooms that don't need it when no one is in them.Why heat all the bedrooms during the day? I work from home alone, so why heat the whole house all day when it's chilly?And also, I spoke to Netatmo, and they are adding the facility for each trv to call for heat from the boiler directly, so that you don't have to rely on the main thermostat itself.


Good call ! am in a similar position working at home, and I only really use the kitchen and my study during the day - but am I wrong in thinking then I would need one of these for every other rad in the house - ie so that when the heating is on for the study and kitchen during the day then all the others are turned off ? - that would cost me a fortune in these things (even though I am tempted for the fun of it)
Or is there a better way that I am missing ?

The Honeywell Evohome is a better system from a large manufacturer meaning hopefully the app system will be better supported and for a longer time.

It has the added advantage of having a LCD controller that you can have in your house and a relay box that connects to your boiler meaning that you can not only control the temperature in each room but it also tells the boiler to turn on / off so your boiler is not just randomly running with no valves demanding heat.

It also let's you remotely turn heating on / off and set temps remotely too for each room.

Finally it also connects to amazon echo and ifttt so you can pretty much program it to do what you want.

Great product but way too expensive

Another alternative which I'm considering is the DRAYTON WISER RADIATOR THERMOSTAT - £35 per valve.
Far cheaper but is it any good?
screwfix.com/p/d…53v
Edited by: "B_T" 27th Oct

B_T4 h, 42 m ago

Another alternative which I'm considering is the DRAYTON WISER RADIATOR …Another alternative which I'm considering is the DRAYTON WISER RADIATOR THERMOSTAT - £35 per valve.Far cheaper but is it any good?https://www.screwfix.com/p/drayton-wiser-radiator-thermostat-white/9953v

I would have gone with this one if it came out a couple a months ago but ended up buying the evohome ones on prime day for 40 a pop (warehouse) but this gets very solid reviews and dryton is a very reputable manufacturer so .I expect all major TRV makers to have a smart TRV by 2018 and by that time all the small players will be bankrupt and their apps worthless (tado and netatmo)

cmdr_elito23 h, 9 m ago

Good deal on price but having to buy the thermostat and all these valves …Good deal on price but having to buy the thermostat and all these valves to fit round your house, your looking at 10-20 years before you save anything. Guarantee the app will stop working in the next 5-10 years leaving you unable to control them. Meaning they are not really worth it.



Exactly, like solar panels.

I have a full Evohome TRV setup in my house. Controlling my rads and stored hot water.
With 15 controlled radiators arranged into 12 zones. Our house is now much more comfortable than a centralised thermostat. We did have Tado before.

In combination with my solar panels heating hot water with excess electricity. Our Gas usage has dropped from 26000kW to 20000kW. We already had a condensing boiler.

So while a full smart heating system is a big outlay. It will save money long term.

imranbashir_uk27th Oct

The Honeywell Evohome is a better system from a large manufacturer meaning …The Honeywell Evohome is a better system from a large manufacturer meaning hopefully the app system will be better supported and for a longer time.It has the added advantage of having a LCD controller that you can have in your house and a relay box that connects to your boiler meaning that you can not only control the temperature in each room but it also tells the boiler to turn on / off so your boiler is not just randomly running with no valves demanding heat.It also let's you remotely turn heating on / off and set temps remotely too for each room.Finally it also connects to amazon echo and ifttt so you can pretty much program it to do what you want.



I'm not sure oyu are very familiar with the netatmo system. It's pretty much as you describe the evo home, the only feature missing is the ability for each trv to call for heat, but that feature is being added by netatmo.
Netatmo don't just make thermostat stuff, they make other bits and pieces too, and large manufacturers are not beyond simply dropping support for stuff (see:google...) so I'm not sure you can really state that one will be dropped and useless, all you can do is look at the functionality as provided today.

bilbob5 h, 53 m ago

I'm not sure oyu are very familiar with the netatmo system. It's pretty …I'm not sure oyu are very familiar with the netatmo system. It's pretty much as you describe the evo home, the only feature missing is the ability for each trv to call for heat, but that feature is being added by netatmo.Netatmo don't just make thermostat stuff, they make other bits and pieces too, and large manufacturers are not beyond simply dropping support for stuff (see:google...) so I'm not sure you can really state that one will be dropped and useless, all you can do is look at the functionality as provided today.


With respect I didn't say anything will be dropped and useless.

I said that hopefully the app system will be better supported and for a longer time.

It's the reason I went for the evohome system and have been happy with my investment.

I looked at a number of options before deciding and at the time evohome came out on top.

Your welcome to make up your own mind on what you want to invest in.

I just gave people another option and gave my opinion that it is a better system and stated why by stating additional functionally that it had.

You can also get add-ons for hot water, underfloor heating and separate room thermostats (although they are not really needed).

Over the nearly two years I have had the system the apps have been updated regularly with new functionality added.

The server is regularly patched and links to Amazon echo and IFTTT added.

I bought Max! kit a few years ago, cost me £220 quid all in, I assigned a schedule to all the rooms according to our routinesOur annual energy bill dropped from £1100 to £850 that year, I suppose having a mild winter helped but I was chuffed to see such a significant drop. Its a cheap system but it works. The link to max is conrad-electronic.co.uk/ce/…ead
Last year I added the netatmo thermostat and coupled it with IFTTT, and now the whole system heating system turns down when we leave the house, and goes back to schedule when we are back. I reckon it will pay for itself in a year or two. I wont have to remind my missus to switch off the heating when she leaves, which is absolutely priceless, and its great to save money for the next gadget
I was thinking to add this trv to the kids room, as it can call for the boiler to turn on which is a great feature

imranbashir_uk27th Oct

The Honeywell Evohome is a better system from a large manufacturer meaning …The Honeywell Evohome is a better system from a large manufacturer meaning hopefully the app system will be better supported and for a longer time.It has the added advantage of having a LCD controller that you can have in your house and a relay box that connects to your boiler meaning that you can not only control the temperature in each room but it also tells the boiler to turn on / off so your boiler is not just randomly running with no valves demanding heat.It also let's you remotely turn heating on / off and set temps remotely too for each room.Finally it also connects to amazon echo and ifttt so you can pretty much program it to do what you want.




I agree 100%! It's interesting that Evohome was multi zone right from the off and these 'designer' heating controls did absolutely nothing to eradicate the one massive drawback inherent in your existing system - either the whole house off or on! You wouldn't dream of having just the one light switch for your house so why do you have one heating switch? These brands are now coming round to the fact that only multi zoning is the really 'smart' way to heat your house! We've had evohome right from its launch and couldn't imagine being without it.

The price is now £49.99

Original Poster

cagri1 h, 7 m ago

The price is now £49.99

Edited...waiting for mods to release

cagri3rd Nov

I bought Max! kit a few years ago, cost me £220 quid all in, I assigned a …I bought Max! kit a few years ago, cost me £220 quid all in, I assigned a schedule to all the rooms according to our routinesOur annual energy bill dropped from £1100 to £850 that year, I suppose having a mild winter helped but I was chuffed to see such a significant drop. Its a cheap system but it works. The link to max is http://www.conrad-electronic.co.uk/ce/en/product/560897/MAX-MAX-Wireless-thermostat-headLast year I added the netatmo thermostat and coupled it with IFTTT, and now the whole system heating system turns down when we leave the house, and goes back to schedule when we are back. I reckon it will pay for itself in a year or two. I wont have to remind my missus to switch off the heating when she leaves, which is absolutely priceless, and its great to save money for the next gadget I was thinking to add this trv to the kids room, as it can call for the boiler to turn on which is a great feature


I have a few of the Conrad Max ones which just replace the top of the TRV (head) so no plumbing needed. These although called valves are the same, they replace the TVR head. I think it’s a bit misleading calling it a valve. Perhaps I’m being picky but I can’t help to think they’ve crossed the line.

Original Poster

Ed_in_London3 h, 50 m ago

I have a few of the Conrad Max ones which just replace the top of the TRV …I have a few of the Conrad Max ones which just replace the top of the TRV (head) so no plumbing needed. These although called valves are the same, they replace the TVR head. I think it’s a bit misleading calling it a valve. Perhaps I’m being picky but I can’t help to think they’ve crossed the line.

Sensible comment ... I have submitted an edit to clarify. Thx.

I love the idea of smart TRVs so each room can be individually controlled/scheduled BUT doesn't this miss the main point of the Nest/Hive system - that it has sensors to monitor which rooms have people in them and intelligently adjust the heating schedule? Surely the TRVs don't have those sensors? Or do they work alongside a wall thermostat with sensors?
Edited by: "profet" 10th Nov

Original Poster

profet16 h, 3 m ago

I love the idea of smart TRVs so each room can be individually …I love the idea of smart TRVs so each room can be individually controlled/scheduled BUT doesn't this miss the main point of the Nest/Hive system - that it has sensors to monitor which rooms have people in them and intelligently adjust the heating schedule? Surely the TRVs don't have those sensors? Or do they work alongside a wall thermostat with sensors?

I think the typical approach to heating system presence is based on overall home occupancy rather than individual rooms. Some systems have built in geofencing in the app for use on a mobile device, whilst others allow you to integrate with other ecosystems e.g via IFTTT. These TRVs require the Netatmo main thermostat system.

Whilst it would be possible to construct a system of sensors to identify presence in each room, this would not only be expensive, but also unreliable...also most central heating doesn't react quick enough to the coming and going of people in and out of rooms

In my experience a significant benefit is achieved by heating individual rooms according to a schedule rather than just whenever the main heating is on. For instance I heat the bedroom to 18 in the morning before getting up, and again just before going to bed. During the day the bedroom is unheated. Originally I used a set of programmable TRVs - these are great for consistent schedules such as the bedroom, however they don't call for heat if the temp is lower than setpoint. That's the advantage of the smart TRV - it will call for heat from the boiler if it needs it.

I cut my gas consumption by around 25% when I installed Netatmo, then a further 20% installing programmable TRVs. The smart TRVs will gradually replace the programmable ones if I remain happy with them.
Edited by: "strelitzia" 11th Nov

Fantastic reply strelitzia, thank you! A lot to think about. We have 12 radiators in my house so I don't think this is affordable at the moment - maybe in the future though.

mahmouddiaa27th Oct

I would have gone with this one if it came out a couple a months ago but …I would have gone with this one if it came out a couple a months ago but ended up buying the evohome ones on prime day for 40 a pop (warehouse) but this gets very solid reviews and dryton is a very reputable manufacturer so .I expect all major TRV makers to have a smart TRV by 2018 and by that time all the small players will be bankrupt and their apps worthless (tado and netatmo)



strelitzia11th Nov

Originally I used a set of programmable TRVs - these are great for …Originally I used a set of programmable TRVs - these are great for consistent schedules such as the bedroom, however they don't call for heat if the temp is lower than setpoint. That's the advantage of the smart TRV - it will call for heat from the boiler if it needs it.


The Evohome is looking expensive in comparison to the Drayton Wiser.
Anyone know if the Wiser will call for heat when required also?

Original Poster

djnield3 h, 3 m ago

The Evohome is looking expensive in comparison to the Drayton Wiser. …The Evohome is looking expensive in comparison to the Drayton Wiser. Anyone know if the Wiser will call for heat when required also?


Yes the Wiser does call for heat, that's why it has has an accompanying relay/hub unit in order to use the valves.

My bank card is itching!

Original Poster

djnield2 h, 5 m ago

My bank card is itching!

You'll need to buy the starter kit in order to get the relay unit
Edited by: "strelitzia" 17th Nov

strelitzia5 m ago

You'll need to buy the starter kit in order to get the relay unit



Been reading the instructions online and not sure I read it correctly.

Perhaps you know, do you install one of their radiator thermostats in the same room their room thermostat?

Thanks OP for this and picked up 2 yesterday.

Only problem is that the valve is struggling to hold on to connection to the relay, has anyone had this and any suggestions on how to improve relay signal please?
Have moved relay as far away from boiler as cable allow and it's not a big house, but concrete floors don't help!

Original Poster

djnield17th Nov

Been reading the instructions online and not sure I read it correctly. …Been reading the instructions online and not sure I read it correctly. Perhaps you know, do you install one of their radiator thermostats in the same room their room thermostat?

You can put them in the same room to get more accurate temperature sensing (in room rather than right next to the radiator) but its not essential

Original Poster

Tuppe14 h, 44 m ago

Thanks OP for this and picked up 2 yesterday.Only problem is that the …Thanks OP for this and picked up 2 yesterday.Only problem is that the valve is struggling to hold on to connection to the relay, has anyone had this and any suggestions on how to improve relay signal please?Have moved relay as far away from boiler as cable allow and it's not a big house, but concrete floors don't help!

Imagine a straight line between your relay and TRV ... Try to make that line avoid going through metal, wires, pipes etc. Use the app to check signal strength, and as a last resort, google 'silver foil parabola' but make sure you keep an eye on the WiFi signal to the relay too!

hotstuffbuyer27th Oct

Only if you walk round the house altering the valves and you have no real …Only if you walk round the house altering the valves and you have no real idea of the room temperature and you can alter temps by time of day and remotely.The the recently launched Drayton Wiser looks better value as the thermostat heads are only £35 each


I've gone for the Wiser system. Seems to be a much more 'complete' setup and is considerably cheaper than the honeywell.

The Wiser system is still new, so there are some key features lacking (IMHO). For example - if you have multiple devices (TRVs or Wall Stats) in a single zone, the app will only show you one 'consolidated' temperature. Support have been very responsive however and evidently have a program of improvements in the pipeline.

strelitzia1 h, 42 m ago

You can put them in the same room to get more accurate temperature sensing …You can put them in the same room to get more accurate temperature sensing (in room rather than right next to the radiator) but its not essential

I saw the same question in another post so contacted support.

They were quick and efficient actually and confirmed to have a TRV on the radiator in the same room as the thermostat.

Have ordered the Wiser system

Original Poster

Netatmo has just updated the Alexa skill so you can now control your radiator TRVs with voice too
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