Radiator Thermostat

Smart Radiator Thermostat

Always enjoy comfortable warmth with optimised energy consumption

Radiator Thermostat

Convenient temperature control

Open and close heating valves by hand? There’s a smarter way! Replace your conventional Radiator Thermostats at home with smart thermostats and enjoy optimal comfort. Determine your desired temperature specifically for each room: with individual time programs, directly on the radiator thermostat, incidentally via voice command or flexibly via app – at any time and even remotely. This way, you can heat with maximum efficiency and comfort.

Efficient energy consumption

Always enjoy the perfect temperature – without any stress and without high energy costs: Effortlessly control your smart home thermostats according to your needs, thereby heating only as much as necessary to achieve your individual comfort temperature.


If you connect several smart thermostats, your desired temperature automatically applies to all radiators in a room. In addition, you can connect the heating thermostats with other smart devices or control them even more conveniently via automations.

operating options

Control your Bosch Smart Home Radiator Thermostats flexibly at any time: Manually on the device, via voice assistant, automatically via time controls, centrally via Room Thermostat or via app – no matter if you are at home or out and about.

Radiator Thermostat – with individual time program

Heat according to your needs thanks to individual time program

Do you prefer to sleep a little cooler, but would like to be greeted by a comfortably warm bathroom at 7:00 a.m. sharp?

Use our time program to enjoy your desired temperature around the clock. Determine your individual rhythm for each day of the week.

And if you should feel colder than usual today, you can simply change the temperature spontaneously by manual control – the set time program remains unaffected.

Radiator Thermostat – Save up to 30 % energy

Save up to 30 % energy

Only heat the rooms that are actually used – this saves energy and money.

It becomes even more efficient when your smart thermostats communicate directly with the central heating system to regulate the heat production even better.

To do this, connect the Smart Home System to a heating system from our partners Bosch, Junkers or Buderus – and save up to 30 % energy.

Radiator Thermostat – step by step installation

Install in no time

You can retrofit almost any radiator with our smart thermostat – no fitter required.

The Bosch Smart Home app will guide you through the installation step by step. You can see how easy it is in the installation video in our service centre.

Radiator Thermostat – via voice assistant

Control heating by voice command

“Alexa, set the temperature in the living room to 22 degrees.”

Whether you prefer Alexa, Siri or Google: Your Bosch Smart Home System obeys your every command and provides pleasant warmth via voice assistant.

This way, you can control your smart Radiator Thermostats from your couch – it couldn't be more convenient.

Radiator Thermostat – child lock

Using the child safety lock

Children’s hands on Radiator Thermostats often lead to incorrect settings and wasted energy. Don’t let it make you sweat – or freeze: Specify in the app that manual settings directly on the device are no longer possible.

This way, children can’t adjust anything on the smart thermostats – and you yourself continue to control the room temperature conveniently via app, voice assistant or Room Thermostat.

Whisper mode for a peaceful night’s sleep

The radiator valve opens and closes automatically to maintain your desired room temperature at all times.

If you also use your radiator thermostat in your bedroom or if your child is having an afternoon nap, you want to avoid any noise.

To do this, simply set your radiator thermostat to whisper mode: This causes the valve to open slowly and without noise, allowing you to sleep undisturbed.

Especially smart: Set up an automation and define when whisper mode should be active.

Radiator Thermostat – intelligent protection functions

Further intelligent protection functions

The smart heating control system has even more intelligent protective functions at the ready:

• Frost protection The frost protection ensures that no damage occurs to the radiator even if the window is open or the room is poorly insulated.

• Calcification protection: To keep your smart home Radiator Thermostats from calcifying, the valve opens once a week throughout the year.

• Failure protection: At the end of the battery life, you will also receive a message via app to avoid failures.

This is how it works

Radiator Thermostat – Control the temperature on the go

Control the temperature on the go

Coming home earlier than expected and want to be welcomed by a warm home?

With a tap of your finger, you can turn up the temperature of your smart Radiator Thermostats in the app on the way home.

This way, it is already pleasantly warm when you come home.

Radiator Thermostat – individual time programs and scenarios

Save energy with individual time programs and scenarios

In the Bosch Smart Home app, you have an overview of all room temperatures.

With individual time programs, you can adapt the Radiator Thermostats to your daily needs, for example, to ensure cosy warmth by the time you wake up or after work and to save energy when you are away or asleep.

Scenarios allow you to save even more energy with just one click. For example, all radiators are automatically switched off in the predefined “Leave the house” scenario.

Radiator Thermostat – ventilation detection

No energy wasted thanks to ventilation detection

In combination with the Door/Window Contact, you heat in a particularly sustainable and energy-saving way:

With the smart ventilation detection, all radiators are automatically switched off when the windows are open. This way, you avoid letting heat go out the window.

Are you one of those people who sometimes forget to close the window in the bathroom? You can set up an individual reminder via automation.

Radiator Thermostat

Regulate your heating as simply and conveniently as never before: with the app-controlled Bosch Smart Home Smart thermostat.

Radiator thermostat
Radiator thermostat
Radiator thermostat
Radiator thermostat
Radiator thermostat
Radiator thermostat
Radiator thermostat
Radiator thermostat
Radiator thermostat
Manages the radiator in your room ensuring the comfort temperature is set and kept at a constant
Individual time control for temperature in every room
Detects temperature drops due to open windows, for example, and adjusts the heating temperature to save energy
Protected communication with secure radio protocols
A frost protection program is started automatically at temperatures below 4 °C. In addition to this, the Radiator Thermostat regularly opens the valve to protect against calcification
54.95 GBP
* Including 20% VAT

Further information

Technical Data

Device Name
Smart Home Radiator Thermostat
Part Number
140 g (without batteries)
Total weight
approx. 380 g
Dimensions (W x H x D)
48 x 57 x 103 mm
Packaging dimensions (W x H x D)
92 x 181.5 x 102.75 mm
Country of manufacture
Valve Connection
M30 × 1.5 mm
2 x LR06 / Mignon / AA
Battery life
2 years
Current consumption
max. 120 mA
Radio frequency
868.3 MHz / 869.525 MHz
Radio range in free-field conditions
> 100 m
Duty Cycle
at 868.3 MHz < 1% / h at 869.525 MHz < 10% / h
Transmit power
10 mW
Receiver category
SRD category 2
Protection class
Ambient temperature
0 °C to 50 °C
5% to 80%

Box contents

  • 1 radiator thermostat
  • 2 AA batteries
  • 3 adapters (Danfoss RA, Danfoss RAV, Danfoss RAVL)
  • 1 installation instructions
Notes about battery disposal

In conjunction with the sale of batteries or supply of devices that contain batteries, we are obligated to point out the following:

Used batteries should not be disposed of in the household rubbish. Consumers are obligated to take batteries to a suitable collection point provided by retailers or municipalities. You can return used batteries of models that we stock or have stocked in our product line to our shipping warehouse (Bosch Thermotechnik GmbH, Spare parts logistics, Justus-Kilian-Strasse 1, D-35457 Lollar) at no charge.

The symbols on the batteries have the following meaning:

The symbol of the garbage can crossed out by an X means that the battery must not be disposed of in household waste.

Pb = Battery contains more than 0.004 percent lead by mass<br> Cd = Battery contains more than 0.002 percent cadmium by mass<br> Hg = Battery contains more than 0.0005 percent mercury by mass

Please note the instructions above.

Download now

Bosch Smart Home App

Download the Bosch Smart Home App in your Apple App Store or Google Play Store.

System requirements: Smartphones from Android 6.0 and iOS 12.0

Compatible with this product