Smart Heating Thermostatic Radiator Valve (TRV) with Smartphone Compatibility, White

Cannot recommend these enough, they are fantastic. We bought an old house and found that with a single thermostat downstairs the rooms upstairs would frequently be at a significant differential from the thermostat, too cold or too hot. These things solve the problem beautifully, I can now set the temperature individually for every room, turn off heat in rooms that aren't being used and have customised schedules for all of them. There are some gotchas that can catch you out: 1) In the app if a valve shows that it's below it's target it will show the heating icon which indicates that it's requesting heat, however despite this if the current temperature isn't more than 0.5 below the target the main thermostat won't actually activate. This confused me for the best part of 2 hours, I went through many resets of all the hive devices trying to solve a problem that didn't really exist. It's very silly that it indicates that the valve is requesting heat when it really isn't, hopefully they will fix this at some point. 2) After initially installing them they need some time to calibrate and may not activate when it looks like they should. I found that deliberately setting them to high and low temperatures to trigger the activation helps to speed this along. I think for the first few nights they will open/close slower than they are able to as part of the calibration cycle. TL;DR if you think they're not working but the app reports everything is fine, it probably is fine, just leave it for a bit. Also I've noticed sometimes it looks like it should be heating one of the radiators but isn't, but if you touch the radiator it's already hot. I guess there must be some energy-saving duty cycle to avoid running the boiler continuously unnecessarily. 3) Leave at least a couple of radiators without these so water can flow freely. The bathroom and hallway are ideal candidates for no smart valve. Then just set the hallway manual valve to roughly halfway so that whenever any of the other radiators demand heat the hallway gets 50%. I've found this works really well. Home Assistant is also worth using as it lets you monitor all the smart stuff in the house and create automations based on events etc, and get access to all of the sensor data. These things are worth their weight in gold, I wish I'd got them sooner. Pretty sure they will pay for themselves over time too with all the insights into the system that I'm getting from the data coming off them, and the ability to not heat unused rooms. Being able to actually have the whole house be at the same temperature is so wonderful though and it's worth buying them just for that alone.

⭐️⭐️⭐️⭐️⭐️ Excellent Quality & Great Addition to the Hive System! Really impressed with this Hive TRV 5-pack — great quality and easy to install. They connected to my existing Hive system quickly with no issues, and the control through the app works perfectly. I can now adjust the temperature in each room individually, which has made the whole heating setup far more efficient and comfortable. The design is sleek and modern, blending in nicely with standard radiators. The valves feel solid and well built, and they respond quickly to temperature changes or manual adjustments. Setup was straightforward using the Hive app, and the connection has been stable ever since. This 5-pack offers great value for money compared to buying individually, and it’s an ideal way to expand a smart heating setup without breaking the bank. Well-made, reliable, and super easy to integrate – an excellent upgrade for any Hive user. Highly recommend!

Took delivery of a TRV to see if the claimed ‘control’ was what I wanted. The TRV fitted easily to my radiator and installation using the Hive App worked without a hitch. The TRV paired easily and then it only needed to be calibrated. To do this I found it was necessary to have the heating on continuously for up to four hours so the TRV could calibrate itself. In reality it took around two hours. Have now set up scheduling for the TRV I am finding the unit performs as expected. I intend to purchase more of the TRVs to allow tighter control of my house heating. So far, no problems. Feb 2021 the TRV started showing signs of miss behaving. It requested doing two calibrations in one week, then finally the motor failed to operate the valve to stop the flow of water. So I was left with a useless piece of electronics. Have binned the Item and refitted my old Drayton head. Am disappointed with the Hive TRV, it showed promise but always fell well short of what I wanted/expected.

Does not work as advertised claims you can control a room temperature and save money! Bought to control a bedroom radiator (on a schedule)however even with Heat on Demand activated the radiator heats to just below required temperature then switches off but when room cools and needs to be reheated , the TVR restarts the boiler but the radiator is not heating. So I have a cold room and I'm wasting energy.