Drayton Wiser Smart Heating TRV Radiator Valve WV704R0A0902 White - Single Unit

Great product,well packaged and really easy to install and add to my Wiser smart heating system myself without the need for paying tor my heating engineer to install it. Paired easily with my wiser hub and has enabled me to control the upstairs as a separate zone to the downstairs just by replacing a normal TRV with this smart one. Took less than 5 min following the easy fitting and calibration instructions. Setting up a schedule is really easy too. I intend now to buy additional smart trv's which will give me the ability to control other individual rooms. BrilliantCost effective

I researched a lot of products, and although this one looked really good, I couldn't help but wonder why the TRV heads were £40 rather than others which were around £60. I thought they may be inferior. I need not worry. They are brilliant. I've worked in IT for 30 years, so setup was a doddle. Even installation was one screw and just swap my old timer for the Wiser hub. It fitted on the old backplate so no wiring required. I just turned my old thermostat to max so it just kept the thermostat permanently switched on, giving control to the new Wiser kit. Once installed, I set up the schedules for each room individually. On an old system, you set all radiators to switch off at a certain temperature, but if you have all radiators set to 20 degrees, for example, then if the temperature is 18 degrees, then obviously all radiators will switch on. With the Wiser Smart Heating system, you then go one step further by saying (for example). I want the bedroom and bathroom to come on between 6 and 8.30 at 20 degrees with all other radiators OFF. I want the office radiator to come on at 8am at 21 degrees, and the bedroom and bathroom to go off at 8.30. I want the office then to turn off at 5pm, but I want the lounge and hallway to come on at 4pm till 11pm. And I want the bedroom to come back on a 9pm. Stuff like that. It basically means that I am running 1 or 2 radiators all day (or until they reach the required temperature), whereas before I would have been running 10 all day. I can only assume that with the horrendous price increases in the UK for gas, this has made a huge difference. We have a reasonable sized 4 bedroom detached house, and after April, our monthly gas and electricity bill will rise from £100 per month to £130 per month. This is the lowest of anyone we know. We are on standard tariff as our supplier went bust, so we had to change supplier recently to a new one, and they had no fixed price deals going, so we ended up on standard which is one of the highest, and we have smart meters, so they know exactly how much we use. People we know in smaller houses than us are paying far more than us (in some cases more than double). I can only assume it is the Wiser system making the difference. But it makes sense, as having 2 radiators on instead of 10 is a big difference. The only negative. The app needs some more thought and some work. It's great at setting basic schedules, but they need to listen to customers more. I think it must have been designed by a developer. When I first had it, I gave them some feedback saying it is really good, but you should be able to have overrides to the regular schedule for specific dates (like on Microsoft calendars). E.g Aunt Ethel is coming to stay next Thursday for 2 nights, so during that period keep the spare room at 21 degrees. The only way I can see is to wait until the day of arrival and then amend the regular schedule to suit or set it a constant temperature and tell it to ignore the schedule. But with both of these options, you have to remember to undo it afterwards. I heard nothing back. Overall though, this is an exceptional system, far better than I could ever have hoped for, which I believe is saving me a lot of money, and probably paid for itself a long time ago. It just needs (like all apps) ongoing customer engagement and development. I would be happy to perform this role for free as I have been heavily involved in mobile app development and I love this product, and I would love to be able to help others save money with the fuel price crisis in the UK.

Originally had a 2nd Gen Nest thermostat, but it became problematic and was always losing connectivity to the Heat Link box by the boiler despite being installed practically right below it. Problem was when the thermostat lost connectivity, you had no heating which occured a few times. Also disliked the fact that despite the thermostat being wireless, it needed to be constantly plugged into the mains meaning portability was lacking (wasn't like you could easily carry it from room to room for e.g.). Being that the product cost alot of money and also wasnt that old, was very disappointed. Rather felt as though it was all show and no go. In the end decided to rip and replace for the Wiser Heat system and on the whole couldnt be happier with it. Had some initial niggles with the control box losing connectivity with the WiFi but it transpired it was a WiFi problem (or not enough of it!). Once that was sorted its been pretty rock solid. The system is pretty easy to set up (though the control box really needs professional installation), easy enough to configure and by and large does what it says on the tin. We bought the pack with the single TRV included and used it in our main bedroom. To begin with I was disappointed as it didnt seem to fit the valve properly and subsequently failed to control the rad properly......several months later after trying it again have found that I hadnt installed it correctly and now seems to control the radiator OK. They arent the quietest things (if you are a light sleeper the opening and closing process could wake you) but do the job. Only issue I have encountered is that the TRV set temperature has a few times dropped down from what it was set to (was 18, falling back to 15 degrees) meaning we've woken cold a few times but having disabled Eco mode now seems OK. I will probably eventually install the TRV's in all the bedrooms, but at 40 quid a pop it's not really a cheap exercise (though far cheaper than Honeywell's offering) but it'll be nice to have temperature control in the bedrooms in order to run the house a bit warmer and the rooms cooler for comfortable sleeping in the colder months. Test will be whether a range extender will be required as our house is fairly large....time will tell I suppose. In summary, I imagine the Honeywell system is probably better but at the cost it ought to be. For the money this seems very good value for money as whilst arguably not quite as polished as the likes of the Honeywell offering it offers nice, reliable functionality at a relatively low price. Certainly knocks a single Nest thermostat into the weeds in terms of reliability and overall functionality, from my own experience anyway.

Ich fange mal bei der Verpackung an: Man bekommt das Thermostat, Adapter für die gängigen Heizungsventile, zwei AA Batterien und einen Schnipsel "Anleitung" mit drei Instruktionen. Es gibt keine richtige Anleitung und ich habe erst im Internet nach einer anständigen Anleitung für das Gerät suchen müssen und es z.B. zurücksetzen müssen bevor es mit meinen Home-Assistant Zigbee Controller funktionsfähig gekoppelt war. Von einer Kalibrierung war auch nirgends in dem Schnipsel Anleitung zu lesen... Da ich ein Danfoss RA Heizungsventil habe, musste ich einen der schönen Adapter benutzen. Der Danfoss RA Adapter hat eine Inbus-Schraube aber es liegt kein passender Inbusschlüssel bei. Am Anfang zeigte die Inbusschraube auch zur Wand weshalb ich mit meinem Schraubendreher leider nicht in der Lage war die Schraube richtig fest zu drehen. Nachdem ich dann erst den Adapter (mit Schraube unten) festgeschraubt hatte und dann das Thermostat auf eben jenen Adapter aufschraubte funktionierte es mit der Methode tadellos. Nachdem ich das Gerät angeschlossen und in Hass integriert hatte, wollte ich nun das Gerät steuern und die Temperatur setzen. Man kann über Hass weder das Gerät an bzw. ausschalten, noch die Temperatur anpassen. Wenn ich an dem Thermostat die Temperatur händisch regel wird es noch verrückter: Ich komme minimal bis 20 °C und maximal bis 30 °C und dann als ich runterschalte plötzlich nur noch bis 22°C. Was ist das? Ich hoffe das Thermostat funktioniert in der hauseigenen App und über Zigbee2MQTT besser aber das ich alleine über die physische Bedinung des Thermostats nicht wirklich in der Lage war richtig Temperaturen einzustellen, stimmt mich wenig hoffnungsvoll. Müsst ihr wissen.