I bought 8 of these. They were great in themselves. I've used them for about 3 months. I wanted to use them with my Nest thermostat and then have Home Assistant do the logic. However, it's more complicated that I thought. If I replaced the Nest thermostat with a Shelly switch to control the heating then I think it would be better as you can connect them together. In the end I have decided to replace them with a combined system like Hive. 



Wi-Fi-operated smart thermostatic radiator valve

Replace your old thermostatic valve with Shelly TRV in less than 2 minutes and be able to control it no matter where you are. Set custom scenes based on hour, light, or various actions, thus have Highly efficient heating management and Save on Energy bills!

  • 6500 mAh rechargeable battery, estimated 2 years battery life
  • Wide range of temperature control, from 5°C to 30°C
  • Easy control through the Shelly app,  as well as various protocols, platforms, and voice assistants.
  • Has an embedded web server and connects to your Wi-Fi network