BoschSmart Home radiator thermostat II, smart thermostat with app function, compatible with Amazon Alexa, Apple HomeKit, Google Home

I find these invaluable in my use case, where I’m in a house with several small rooms that I use at different points of the day. Probably not as useful if you are using most of your rooms for most of the dayHad a new Worcester Bosch combi installed with a CT200 thermostat/screen, and this system has slotted in just fine with that. The app is simple to use, and gives you really granular controls over how you hear specific rooms at specific times of the day.The TRVs do make noise when in operation, but we got used to that fairly quickly. If you are a light sleeper, this might be a problem for you in a bedroom, although the fact you don’t need to keep your bedroom massively hot when you are asleep means it turns off around the time I goto bed, and seldom goes on again until I have programmed it to in the morning, around the time I wake up.I settled on this because:- Tado at the point of point of purchase, didn’t support “modulation” on my boiler properly, just on/off controls which would have impacted efficiency slightly- Price wasn’t ridiculous when on offer- It has APIs which give you the ability to link in with your smart home, such as Home Assistant

Amazing 👏

Better than the previous version as I didn't have to use any of the custom fitting pieces, it just went on the radiator as is and worked first time. It does the job it says it does too.

I am trying to be as eco-friendly as possible and I decided that being able to limit or turn off heat to certain rooms from my phone would let me save energy and money.These look great at first and you would expect high quality from Bosch but sorry they are just terrible, first for the high cost they are made of the cheapest horrible feeling plastic in the world and they are just creaky and should be more like £10-£20 each for this sort of quality.The fittings aren't too bad but you definitely don't get everything you need for every situation and again for the cost you should get everything that you need and not have to purchase anything extra.Luckily I managed to fit my five thermostats but two did require a little known 1p coin trick, basically on some radiators the valve is to low and the unit can’t travel far enough to close and open the valve so the unit won't calibrate or work, if you put a 1p coin in between it will then be able to reach.By the way the controller takes forever to get setup, it could be downloading firmware but honestly it's like 20-30 minutes from plugin for the thing to be ready to go and the units themselves say updating firmware for like two days, everything is just very, very slow.So after finally getting the units to calibrate I started to play with the different features and set the temperatures that I wanted in each room but when I set temperatures on two of the thermostats from my phone they didn’t do anything and they just went offline.I waited a while and one came back on but then disappeared again, so I waited a good while longer but nothing else happened so I removed the batteries and restarted the units, they then showed online and everything seemed fine but then I would set the temperature and they would once again go offline.It can’t be signal as it’s not a huge house and the other thermostats were further away with walls in between and they didn’t have any issues at all, moved the controller anyway but they still had constant connectivity issues.There's a booster that you can buy but once again it’s spending even more money on something that should just work at this price point!Another problem is that they don’t detect the temperature very well, they can be 2°C-5°C out,I get that you can adjust the temperature but again at these prices you shouldn’t have to be correcting the temperature.The next issue is also to do with temperature, it always goes higher than what you set it to, I can set the radiator in a completely different room that isn’t affected by another room's temperature and it will end up a good chunk higher, for example I set the radiator to heat up to 18°C but it would keep going to 22°C.If I went to the settings for the radiator it would show the valve position still open at a certain percentage for example 30%, surely if the room was warm enough the valve should be closed??I was really hoping these were going to be fantastic for the cost but they are just rubbish, even if you manage to get past all of these issues and the messing about, I have now read all the bad reviews about constantly needing the batteries replaced, units suddenly dying, units falling apart after a few years etc it just seems like a product that is going to be a constant headache.These are definitely all going back to Amazon for a refund, I was going to purchase more thermostats and some door sensors which in total would have been about £800 but no way.

Easy to fit and program via the app. Looks good too.

Our radiator is behind cupboards so it not easy to change heating. With this life is so muchceasier and i can control it when when out. Just make sure you buy the whole thing as without the main hube you cannot use. Also got it on a promo price which im very happy about

Perfectly working, we love it!

I’ve been using the Bosch smart thermostats for a short while.In this short time, they have migrated from v1 to now v3 of their TRV models; so feel I have relevant experience to share;V1 was ugly, loud but reliable and functionalV2 was more aesthetically pleasing, quieter but unreliable (more regular drop outs, less intuitive app)I cannot recommend value for money as this v2 product is already technologically out of date (v3 is compatible with matter).