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Netatmo Smart Radiator Valve

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Quoting product code: A28WK


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About this product


  • Use alongside the Netatmo Thermostat (not included, Order Code A31NR) to control your radiators with your phone
  • Wirelessly connect to your home Wi-Fi router
  • Compatible with the Amazon Echo

Product overview

• Use alongside the Netatmo Thermostat (not included, Order Code A31NR) to control your radiators with your phone
• Wirelessly connect to your home Wi-Fi router
• Compatible with Amazon Echo
• Set a temperature for your radiator
• Replaces existing thermostatic valves
• Runs off two AA batteries (included)
• Save money by only heating the rooms you want when you want

"Alexa, increase the temperature in the living room"
Thanks to the new Amazon Alexa skill from Netatmo, your Amazon Echo can help control the heating of the house. All you need to do is ask Alexa to change the temperature in any room equipped with Netatmo Valves “Alexa, set the bathroom temperature to 23 degrees”, increase and decrease it "Alexa, increase the living room temperature” and even ask what the temperature of the house is “Alexa, what is the temperature in the baby’s room?”. By simply asking Alexa, you can improve your comfort at home without lifting a finger.

What can I use the Netatmo Smart Valve for?
Control your radiator from your phone or tablet with this Wi-Fi Thermostatic Radiator Valve. The wireless TRV attaches directly to your radiator, then connects to your existing Wi-Fi router via the Netatmo thermostat (sold separately). The TRV controls a radiator directly, allowing you to set different temperatures in different room no matter where you are. Set the TRV to manual, automatic or off to monitor the temperature and adjust the heat of your radiator when you want it. This way, you can save money by only heating your house when and where you want.

How does the TRV work?
The TRV works off two AA batteries, so you can place it anywhere without having to worry about power. Simply replace the existing TRVs and screw on the radiator with the Netatmo TRV. There are five adapters for different fixings to accommodate a wide range of radiators. With this system, you can expand and control your entire house’s heating from the comfort of your phone. You can even check the temperature history in each room.

How can I control my TRV?
Connect to your thermostat and TRV through the Netatmo App and change your heating wherever you are. The app is available for Android and iOS. Monitor your home temperature wherever you are and record for long term tracking. You can also see how much energy you consume with easy to follow graphs.


Rated 3 out of 5 by from When they work they are great Netatmo customer service used to be brilliant, that is not the case now. These valves are great when they work but when they don't it is a bit of a nightmare to work out why. I only had an issue with one valve (I have 9) and that was solved by some WD40 on the valve spike. It took a week or so for the valves to settle down and if you have a lot of WiFi stuff around they might not like the environment. The Netamo Forum is a good place for problem solving so if you are happy with tinkering around these will be great. If you are not particularly technically minded I'd avoid them.
Date published: 2017-12-04
Rated 4 out of 5 by from Great for comfort and control This is a really great addition to a heating system to give extra control around your home. With two of these we have turned our other radiators down/off and are allowing two of these to set our living room and bedroom to the desired temperature. At £50 we’ll worth it not only for long term savings but also just for the comfort of having a room heated precisely.
Date published: 2017-11-14
Rated 5 out of 5 by from Works great Had a thermostat and valve around a month, a firmware update at the start of December for all the units seeks to have solved any issues from previous reviews. The valve can turn on the boiler if you want it too. The TRV looks good, better then any offers I've seen, and is great value.
Date published: 2017-12-30
Rated 1 out of 5 by from 4 failed within a month I installed 4 Netatmo TRVs, they worked perfectly – modulating the temperature exactly as you would expect. I was so impressed I ordered another 2. After about 1 week I noticed that 1 of the TRVs was no longer fully shutting off the heat and room temperature would continue to slowly climb. I emailed customer services – no response. I recalibrated the valve – that seemed to help for a day or two and then the problem reoccurred, and again and again. Each time the extent to which the valve closed would get worse and worse until it eventually became completely ineffective. Then a second valve began to have the same problem. I called customer services – a very frustrating process as they genuinely have zero knowledge about the valves at the call centre. They did contact France and came back with a message of “We now know we have a problem – we will look into it and get back to you”. 10 days later and there has been no response and the situation is far worse. I have tried recalibrating (repeatedly), reinstalling, testing the batteries, new batteries, lubricating the radiator plungers, read everything on the website (very little), tried customer services by email and phone. Many frustrating hours. No solution, no help. Emailed customer services again on Friday – no response again. Fourth valve began to fail over this weekend – and the first two to fail reached the stage of being completely ineffective (they were pushing out heat all evening at full blast with the room temp reaching 24 degrees and the TRVs set at 18 for many hours). When I installed Netatmo thermostats 2 years ago, Netatmo customer services were superb (albeit email only – but that worked fine as they were smart and responsive). Now they functionally don’t exist, at least for the valves. My guess, I stress guess, is that the motor is not strong enough to push the radiator plungers down. It is at first, but quickly fails to cope with the required force. If so then this is ridiculous – my house is only 14 years old, the system is standard dual zone, albeit a large house, and I have previously had Chalmor eTRVs fitted on the same radiators for 4 years and they have worked perfectly (I reinstalled them last night and they work perfectly again). I am therefore returning the 4 original Netatmo TRVs that had originally worked and are now faulty, plus 2 unused Netatmo TRVs that have not been unpacked.
Date published: 2017-11-27
Rated 5 out of 5 by from Highly adaptable Very easy to make your dumb radiator smart with this well thought out product. Must be used with Netatmo Smart thermostat but many accessories should ensure it fits your radiator within minutes and with only a small screwdriver. On the expensive side and the control software is obviously still in development, but is improving all of the time. Alexa seems to enjoy playing with this also!
Date published: 2018-01-03
Rated 1 out of 5 by from Awful I bought a bunch of these valves. Having used them for a few months I can honestly say they are terrible. Rooms randomly heat very hot and the valves randomly lose connection sometimes permanently. Don’t buy.
Date published: 2018-01-12
Rated 5 out of 5 by from Great Product Very easy to instal and setup. Works very well for me and will definitely recommend it to others.
Date published: 2018-01-04
Rated 1 out of 5 by from does not worlk We’ve have had two Netatmo TRV's for 4 months, they don't work absolute rubbish. We have one in my kitchen the other in my lounge. We also have a Netatmo Thermostat this is set to reach its set temperature by 7am each day. Using the auto-adapt function. However the TRV's don't come ON until 7am leaving half the house cold. We see the same issue in the evenings. Basically the TRV's are working independently from the thermostat and heating prediction. Resulting on the thermostat turning on the heating earlier and earlier, to compensate for the fact that the two largest and most used rooms in the house have radiators in them which are being kept turned off by the not so smart Netatmo TRV's. We contacted Netatmo to ask them for help to resolve the problem. They performed a firmware update, but when that did not work they went very quiet. I e mailed them a couple of times for more help with this issue. All I got back were negative one line reposes like... I have forwarded your findings to the support team in Paris for them to investigate further. And...I'm so sorry about the delay. I will respond to you as soon as they respond. The reason we purchase the TRV's is to reduce our heating bill, I fact it has risen in cost as a direct result of them. There a waste of time and a waste of money. The customer service is useless, a help line goes to an answer machine, I should have bought a nest.
Date published: 2018-02-14
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Type Smart Valve
Pack Size 1 Smart Valve
Operating Power 2 X AA batteries
Mains No
Remote Controlled via App Yes
iOS Compatible Yes
Android Compatible Yes
Push Notifications Yes
Remote Controlled via Text No
Wireless Thermostat Yes
Wi-Fi Compatible Yes
Works with Existing Wif-Fi Router Yes
Standalone No – Requires Netatmo thermostat
Thermostat Yes
Track your Heat Temerature History Yes
Automatic Frost Protection Yes
Expandable Yes
Hub No
In Home Control Yes
Receiver Yes
Usage manual/automatic/off
Pin Lock No
Location Radiator
Indoor Yes
Includes Installation No
Installation Requirements Easily replaces existing TRVs
Room-by-room comfort Yes
Open window detection Yes
Smart regulation Yes
Manual boost Yes
HomeKit Yes
Depth 71mm
Height 162mm
Width 125mm
Contents 1 x Smart Radiator Valves
2 x AA batteries
1 x universal adaptor M28 x1.5
1 x universal adaptor M30 x1.0
1 x Danfoss adaptor RA
1 x Danfoss adaptor RAVL
1 x Giacomini Adaptor

What are it's dimensions? (I have one radiator very tight to wall)

Asked by: Jim_
The dimension for the device are posted on the product listing. ** Specifications General Depth 71mm Height 162mm Width 125mm
Answered by: Les
Date published: 2016-12-12

Is this a pack of 1 or a pack of 2? 

Asked by: Stu778
As shown Contents: 1 x Smart Radiator Valves 2 x AA batteries 1 x universal adaptor M28 x1.5 1 x universal adaptor M30 x1.0 1 x Danfoss adaptor RA 1 x Danfoss adaptor RAVL 1 x Giacomini Adaptor
Answered by: Dominic
Date published: 2016-12-01

Is this device compatible with the Hive thermostat?

Asked by: Gary
Unfortunately we are unable to guarantee full compatibility for this item.
Answered by: Dominic
Date published: 2016-11-27

when is this in stock and what will it work with ? only Natatmo or z-wave/zigbee/wifi etc

Asked by: jimm
This is only compatible with other Netatmo products
Answered by: DaveB
Date published: 2016-11-11

Does it support apple home kit?

Asked by: Ashley230286
Yes The Netatmo home page confirms this
Answered by: Les
Date published: 2016-10-09

When do you expect these back in stock?

Asked by: Naomi
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below : 0333 400 9500 or email
Answered by: Darren
Date published: 2017-03-07
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