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Using the Somfy Thermostatic Radiator Valve you can have the right temperature in every room. Simply change the desired temperature on the valve or using the Somfy TaHoma.

✔️ Save Energy - only heat selected rooms

✔️ Optimize radiator control - smart placement of the temperature sensors secures accurate temperature measuring

✔️ Quiet yet powerful - the motor in the radiator valve is designed for optimal sound levels

✔️ Timer function - set each radiator individually according to your schedule

Operate manually or from Somfy TaHoma

Operable from Somfy app when combined with: TaHoma

NOTE: remote io or TaHoma not included. The screen will be upside down on UK radiators with the valve pointing vertically

SKU : 1870508
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Somfy Thermostatic Radiator Valve


Somfy Thermostatic Radiator Valve

The Somfy Thermostatic Radiator Valve can replace almost any thermostatic radiator valve and is suitable for most heating systems. The Radiator Valve has been created to allow you to set the temperature in every room. This gives you optimal comfort levels and saves you energy by only heating the rooms that you are using. The radiator valve is controlled using the buttons on the front or using the Somfy TaHoma.

Save energy

Enjoy maximum comfort levels and save energy at the same time by heating only those rooms that you use. More comfort whilst saving energy, what more do you want?

Optimal control

Thanks to the placement of temperature sensors on both sides of the radiator valve it is possible to correctly measure the temperature, even if the valve is located very close to the heat source. With the OpenWindow feature the valve automatically saves energy –when the valve detects a sudden drop in temperature (usually caused by an open window) the valve temporarily turns down the heat.

Self-learning mode

After an initial period, the valve knows how long it takes to heat up a room. As a result, the Valve can decide if it needs to turn up the heat earlier to reach a desired temperature. This way, it will automatically choose to open the valve earlier if you want the temperature in your bathroom in the morning. Isn’t that smart?

Timer function

Every Radiator Valve can be set individually, according to your schedule. Thanks to the Somfy TaHoma you can have a more comfortable bathroom temperature in the morning within just a few clicks. That’s a good way to start your morning!

Quiet yet powerful

The motor of the Radiator Valve is designed for optimal sound levels, meaning you can easily use it in your bathroom without being awakened by your radiator valve. Sleep tight!

*Please note the screen will be upside down on UK radiators with the valve pointing vertically*


Specifications Thermostatic Radiator Valve

  • Protocol: io Homecontrol –2 ways
  • Pollution: Cat II
  • Degree of protection: IP20
  • Frequency: 868-870 MHz io homecontrol®
  • Dimensions: 87 x 55 x 48mm (L x W x H)
  • Weight: 160g
  • Power: 2AA Alkaline Batteries –Two year-battery life
  • Color: White
  • Ergonomic: 2 mechanical buttons (target adjustment +/-, pairing, reset functions) Led display (60 white LED matrix)
  • Valve Compatibility: Native M30x1.5mm
  • 3 adapters: M28x1.5mm, RA, RAV
  • Works with: TaHoma v2, TaHoma DIN Rail
  • Warranty: 5 years

Help Guides

How to replace radiator valve


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Manual for Thermostatic Radiator Valve


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