Bosch Smart Home Radiator Thermostat II, White

I have Worcester Bosch boiler. As boiler is not using open communication protocol it can only be really smart (water control, heating modulation) if used with Bosch controller. So I decided to fork out for Bosch controller (£190) and install 5 smart valves with it (£41 each). Mind that wiring controller itself is a bit technical. Valves are very easy to install and connect. Overall I am very happy with purchase. I installed valves only on main radiators I want to control. Valves operate quietly. They do show preset temperature only. Through app I can see measured temperature but this one is typically higher than room temperature as valve is installed near radiator. That however does not stop the system to operate correctly (I believe system runs on temperature change / mass flow, when it notice that valve temperature drops fast it adds more heat increasing temporary the set point to keep room cold) it uses weather forecast to predict when more heat is required. I run the setting one degree up from what I like to achieve in the room. I installed a bit of radiator foil between radiators and valves (I am not sure if that does much). App is great. I can see and adjust temperature when I want. I wish Bosch would remove screen and buttons from valves to make them cheaper.

I got one of these for my bedroom as it gets cold at night but as the hallway is warm, the boiler doesn't trigger. Now the system knows the bedroom is cold, so activates the boiler to maintain a comfortable temperature. The next time these go on discount I'll get a few more. Works well and the app is decent. My only dislike is no Battery Status on the app, so when the battery goes flat, the device just disappears from the app. The other disappointment is they are only IP20 so I wouldn't use them in the bathroom.

Had the Bosch Easy Controller for a couple of years and love it. I was having issues in one of the bedrooms not getting warm due to the placement of the controller as that room was getting up to temperature before the bedroom and shutting off the boiler. As my plumber is doing emergency work only due to COVID I decided to get the WB smart TRVs. They have come down in price since I last looked. 7 rads are done eeek. Easy to fit and pair with the app. The main unit I have set the temperature really low so only the TRVs call for heat. Got them all in their own rooms in the app so I can monitor them to see when they are calling for heat and calibrate their temp with a thermometer placed in the room. Once I am happy I will look at combining them to get down on the number of program schedules. Didn't do two rads that are in drafty locations as I didn't want them kicking in all the time. I just moved the Bluetooth smart TRVs I had on to them so they will close down when required but not call for heat You have to leave a least one rad free flowing to protect the boiler (big towel rail in the bathroom). Only downside is I have confused the hell out of the wife as the wall controller if turned up will fire up the boiler but the TRVs could be closed if it's before their wake up time so the boiler will just be pushing water through the free flowing towel rail. Rather than confuse her with app I am just setting up groups in Alexa. "Set the house temprature to 22 degrees" turns on all the TRV. Set the bedroom temprature does just the ones in the bedrooms etc. I will deal with Alexa being off line when it happens lol. It's solved our problem but not cheap. Still I can off set it against a call out to move the stat which may only just create a problem in another room. Just need to keep my eye on the smart gas meter. I have noticed it's on more but is not running the boiler at such a high temperature. Daily gas useage seems around the same but I will know more when my provider sorts their app out so I can compare it with a couple of weeks ago. Will take an age to recoup the cost of the units if I ever will but it is giving us the right temperatures in the rooms.

I already had an EasyControl included with my new boiler. I installed these thermostats myself, dead easy scanning the code from my phone, they are almost silent, work perfectly. I now have a fully zoned heating system with each room easily programmed from my phone. I don't have time to waste manually changing all the radiator stats twice a day, it would never get done so I would be wasting gas. With this setup the boiler doesn't fire until at least one of the radiator stats demands heat. I use eneloop rechargeable batteries, they last ages. I do have one older radiator valve that the bosch thermostat is not happy with, so I use a much noisier Terrier i-temp on that one.

These smart TRV's are quite nice and really easy to install/connect, but somehow, I’m still struggling with room temperatures in some rooms. I’ve got 5 of these TRV’s connected to the Bosch CT200 thermostat, and the temperatures showing on the app for just 2 rooms aren't correct. Not sure if the mechanical valves where these plug into can somehow affect the behaviour, as in these 2 rooms for some reason the mechanical valves as part of the rads only open the water flow from 3 to 5 instead of 1 to 5. Could that be the cause? Anyway, the app EasyControl allows “Temperature Calibration” to 2 degrees up or down, but even with that compensation the valve fails to set the room temperature correctly for only these 2 rooms. Strangely I can hear the valves opening and closing way too often... As for these smart TRV's management, the app unfortunately doesn't show the valve status (% closed/opened), the battery % level, humidity (not sure if there is a sensor for that), the schedule assigned to each room on the home screen, and able to run an open/close test on the valve. Also, the smart TRV's should show locally on the device LCD the current room temperature and not the temperature that is set for, or automatically flick between the current an set to temperature. Another feature will be to set any smart TRV's into manual mode (scale of 0 to 5 just like non smart TRV's) in case you remove them from any schedule.

Sehr gutes Teil. Ich hab die kompletten Heizkörper damit umgerüstet . Funktioniert sehr gut.

L'affichage des têtes Thermostatiques est inversé, les photos du produit en situation ne sont pas conformes aux produits livrés. La photo du produit seul prête à confusion

Heizkosten sparen einfach

Sehr schnelle Installation, läuft tadellos: Aber: ich halte den Preis mittlerweile für überzogen. Die Preiserhöhung liegt weit über der Inflation, insbesondere für den Nachfolger. Wenn man vor hat, sich sein ganzen Haus damit zu zupflastern, muss bedenken, dass er dann in diesem System gefangen ist und es keine erweiterten Garantiezeiten gibt. Ich hatte mal so einen Fall mit dem Brandmelder. Es gab keine Kulanz

man muss bei diesen Reglern darauf achten, ob Sie aus UK kommen und in Deutschland eingesetzt werden sollen. Bei Geräten aus UK steht die Anzeige auf dem Kopf. Die Anzeige kann nicht gedreht werden! Das tut der Funktion aber keinen Abbruch. Ich habe das Thermostat an einem Heizkörper montiert, den ich nicht einsehen kann