TP-LinkKasa Smart Thermostat Radiator Valve , Smart Radiator Valve, Energy Saving, LED display Radiator Thermostat Valve , Smart TRV Schedule, Works with Alexa & Google Home, Easy installation(KE100)

I purchased this hub, which included one smart thermostat valve, together with three more smart thermostat valves, separately purchased.Installing the hub and linking it to Alexa was very easy, and took only minutes to complete.The app is simple to use and straightforward and interfaces very well with Alexa.The thermostats give you an indication of the temperature in the room where they are installed, which I found to be accurate.The easy to read display on the handle clearly shows the temperature you set the thermostat to and the temperature can be easily varied with either the handle or through the app and/or Alexa, or using voice commands, giving you total control on the heating in your home and assisting in making the heating system energy efficient (saving you money by, for example, turning down or off the heat in rooms you do not use a lot).The thermostat handles come with a large number of adapters and are easily to install (although I would advice inserting the batteries before installing the handle on the radiator, particularly if the handles will be placed in difficult to reach positions on your radiators).I found the price to be very good value for money.Recommended, to make your home warm and smart.

Baught 6 of these plus the hub that is needed to connect them to thei Internet.They are easy to install and come with adaptors for most radiator valves. Had one radiator adaptor break but had spares.Batteirs that come with them karnt great and when you connect them it says they are half charged or nearly dead but I had my own double AAs so wasn't a problem.The app is easy to use and it connects easy to the Google home app. Hoping they stand the test of time they seem well built and they adjust on the app quickly so temperature can be adjusted.Haven't set up the schedule features or the geofencing yet but it seems like a very good feature.

This is basically a decent enough alternative to Tado and about the same price as Tuya devices but with a big name to back it up too. This isn't as good as Tado of course but it's four times cheaper and for me it's a good stop gap given I want underfloor heating eventually anyway. It's a bit bigger than the Tado equivalents though but again it's 25% of the priceIt's easy to install, easy to use and appears to not deplete my batteries so quickly. It's a shame though that you can't recharge the batteriesThe app could do with the ability to have shared devices. To share the device, I can't have role based access like you can with Tado so you have to use the same login detailsFrom a manual perspective, that functions as you expect and realistically you want to ensure that the manual option is the easiestOverall, you get what you pay forIf you want a smaller TRV, slightly more accurate temperature sensors, a better app, and a smaller TRV, you need to pay four times as much for a TRV

If, like me, you are wanting more control ver your heating room-by-room but don't want to go the full "Hive" or "tado" experience, then this could be your answer.I like my manual wheel thermostat, it's easy to use, none of the painful programming needed when there is a call for heat. It's paired with a perfectly good Horstmann 3-channel programmer that's only as old as the house and changing it would not only be a complete pain as it would need a tiling patch job, but it would be a waste of money too.So my idea was to create a system that used the separate thermostats upstairs and downstairs to have overall control over the temperature. The existing programmer would care for the overall time the boiler fires for and those Smart TRVs would control each room's specific temperature and the times the rooms would heat for. I left the bathrooms free of TRVs to heat to max and to not stress the system if the TRVs all close while the pump is running, and everyone likes a warm bathroom right?At the time of purchase, the TRVs cost £40 for the Hub Version and £30 for an add-on. This isn't bad considering a good brand dumb TRV is probably £15. So for my 4 bed detached, that was a total of just under £300.I did buy 2 of the Hub versions as I was concerned my 2500sq/ft house over two levels might be a big ask for the Hub to reach all 9 TRVs, especially with all the foil insulation in the place. For the extra £10 it seemed sensible as if I didn't have to use it, I would have a spare Hub in the cupboard.Fitting turned out to be a breeze as I had relatively new dumb TRVs and the Kasa TRV just screwed on without any of the adaptors in place of the old. And for those who aren't sure, YES you CAN do this yourself, you do not need a plumber. The old TRV simply unscrews leaving the valve showing, it won't leak water. Just screw the Kasa TRV on in place of the old one.After downloading the free Kasa App, you "add" the Hub first which is just a case of plugging it in to a central socket. You then fit the first TRV to the radiator and pop in the two included AA batteries into the and "Add" the first TRV to the Hub. Adding more is as simple as adding the first. You name each one as you go, I recommend the "room name" and "Thermostat" so that you can easily find the one you need through the Kasa app and through Alexa. The result then is a voice command that would be (eg) "Alexa: Increase temperature of Living Room Thermostat to 22 degrees".Then you can begin setting up temperatures and times in all the rooms. You can have as many "ons" and "offs" as you like, and each can have a different temperature. It's worth taking the time to sort these out and effectively you only need to do it the once with maybe a little adjustment here and there to fine tune.Fitting time for 9 TRVs and a Hub: 1 hourInitial programming time: 1 hourHint: I produced a spreadsheet outlining when I wanted heat in each room and at what temperature. This allowed me to then know what times to set the main Programmer and what peak temperature to set the room thermostats to. It kinda works (see image)!Batteries are supposed to last a season. But you do have a Sleep Mode to turn of the drain for the summer months without having to remove the batteries and risk losing the programming. Being Smart and App based, battery levels when low are reported, so it's not like you'll be left without heat.There is a lot of function on these TRVs:-Frost Mode-Child Lock (from the App so the kids can't turn up the heat!)-Temperature Offset (to get the temperature spot on in the room)-Night Mode (stops the motor adjusting too often that might interrupt sleep. Turn on in bedrooms and off in living areas)-Early Start (ensures the room is at the set temperature at the time set, rather than beginning to heat at the time set.)-Grouping: Group two or more TRVs into one. Great for larger rooms with two radiators. This helps to ensure the temperature is consistent across the room.-Geofencing: This is new and I have not tried it, but apparently it can be programmed to turn on/off the TRVs as you arrive or leave the house automatically.Alexa Integration: Alongside the obvious voice control, Routines can be set to change things as things change. For example I use my Ring Alarm Door Contact to close the Hall TRV when the door is opened, and open the TRV when the door closes again.The display can be swapped for horizontal and vertical fitments, you don't need to order different TRVs for each fitment type.As for the Hub, even in my tricky house, I only needed one Hub. I am lucky that I have a Hot Press (Airing Cupboard) in the dead centre of the house and placing the Hub here really helped. The further radiator from the Hub shows 2 of 3 bars which is fine.Of course let's not forget that with the Child Lock off, the temperature can be manually increased or decreased at the TRV as easily as a dumb TRV by twisting the top in the same way. The temperature is digitally shown briefly so you know what it's set at before going blank to save power. At the next programmed time, it will change back to whatever you programmed it to for that period.One thing I will be doing is fitting one of the TRVs with Lithium AA batteries instead of Alkaline to see if it's worth doing. Lithium AAs are 3 times the cost, but if they last at least three times longer, it will be worth it. I'll report back in a few year's time!!!