Smart heating

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Home heating of tomorrow

Danfoss Smart Heating solution ensures that the temperature stays just the way you like it. Your home will be warm and cozy when you get home. You will also gain on savings, when you are away or asleep. Try out and enjoy the ultimate comfort experience. 

Since we spend almost 90% of our time inside, we need to make it as comfortable as possible. Danfoss offers a range of smart heating solutions that brings you a new level of indoor climate comfort.

Let your heating follow your daily schedule:

  • In the morning: even before you wake up, your Smart Heating solution will automatically increase the room temperatures to ensure a pleasant start of your day.
  • During the day: when you are not at home, Smart Heating will decrease the room temperatures to reduce energy consumption.
  • During the night: temperature will automatically be lowered to increase energy savings.
  • Plan your holiday: choose your departure and return dates and the App will take care of the rest. On your return, you will be welcomed by your desired room temperature and comfort.

Features and benefits

Higher level of comfort by ensuring the right temperature at the right time

Up to 30% of energy savings by adapting room temperature to your daily schedule

Easy use and control due to excellent user experience and convenient control via your smart phone

What is smart heating?

Every home can be heated smarter. Increase your comfort and energy savings by letting your heating follow your daily schedule.

Product range

  • Danfoss Eco™ stand-alone smart heating soluton
    Danfoss Eco™ stand-alone smart heating solution

    Danfoss Eco™ is a stand-alone smart radiator thermostat for in-home control of your radiator heating via Bluetooth.

  • Danfoss Link™ complete smart heating system
    Danfoss Link™ complete smart heating system

    Danfoss Link™ is complete smart heating experience that enables you to be in full control of your radiator heating and underfloor heating. You can now control your heating anytime, from anywhere, by using your smartphone.


Danfoss Link™ is compatible with Amazon Alexa.

To see which home heating products Danfoss Link™ is compatible with please visit our Smart Heating website.

Danfoss Link™ cannot be connected to other non-Danfoss systems such as Apple HomeKit, IFTTT, Samsung SmartThings or Google Assistant.

Demount old thermostat
If you have an old thermostat on your radiator, you need to dismount your old thermostats, before you can install Connect thermostat. In this video, we illustrate how to do it – depending on which thermostat you currently have.

Mount new thermostat and adapter
First, you need to identify which adapter is right for your radiator. Danfoss provides different adapters for different radiator valve types. Use the adapter selection guide by placing the different dimensions onto the valve to identify which adapter fits your valve.

The adapters supplied cover more than 90 per cent of all top mounted valves, both Danfoss and other brands. If none of the adapters fit onto your valve, it may be because your valve is old. In this case, we recommend that you buy a new valve.

Second, fit the correct adapter onto the valve. Insert batteries into your new Connect thermostat and screw the thermostat onto the adapter and tighten. Leave mounting mode.

Now you are ready to create room and add devices on your Danfoss Link™ Central Controller. Please follow the installation guide to do this.

Adding devices
You can add devices to your Danfoss Link™ by following the instructions on our Smart Heating website. Remember to keep track of the devices you have added to Danfoss Link™, so you know in which room to mount the device.

Note: If your Central Controller says that the device was not successfully added, please reset the device (watch video below).

Moving or removing devices
If you wish to remove a device or move it to another room, reset the device you wish to move or remove (watch reset device video).

The device is now ready to be re-installed. Please follow the instructions on our Smart Heating website.

Power outage on Danfoss Link™ Central Controller
If there is a power outage, the Danfoss Link™ Central Controller will turn on, once it gets power again and will connect to your installed devices.
If the Central Controller does not get power again

  • Connect thermostats will continue on the temperature they were at when the power outage happened
  • the Room Sensor will go into frost protection mode


Connect or Room Sensor runs out of battery
When Connect or Room Sensor is low on a battery, a battery icon will shown in the display and the Central Controller will give you an error message. If a Connect thermostat or Room Sensors runs out of battery, they will go into frost protection mode.
Connect thermostats and Room Sensors use 2 x AA non-rechargeable batteries each.

The freer passage the radio signal from the Central Controller has, the farther it can reach. House walls, metal objects, special constructions and other obstacles weaken the signal. Your Central Controller will give an alarm if it cannot reach a device for more than 1.5 hours.

If there are obstacles between your devices, you may need to install a Repeater Unit to extend the signal. Follow the instructions on our Smart Heating website to install the device. If necessary, you can extend the extended signal by adding another Repeater Unit. You only need one Central Controller for your home.

It can measure and control the temperature at a specific spot in your home.

If you place the Icon™ Room Thermostat close to your couch or away from a window, you ensure your desired temperature at this spot, because you optimize the actual temperature measurement in the room.

We recommend adding a Icon™ Room Thermostat in rooms with multiple radiators, because the room sensor balances the temperature across radiators based on the room temperature.

If your radiator thermostat is covered, e.g. by furniture, the Icon™ Room Thermostat will ensure your desired temperature in the room.

Add the Icon™ Room Thermostat to your Danfoss Link™ Central Controller in the same room as the Connect Thermostat you want the Icon™ Room Thermostat to be connected to.

Energy savings are achieved through a reduction in room temperature.

As a general rule, you can save 5% of energy consumption for every degree you lower the temperature at night. We recommend, you lower the temperature 3-4 °C at night and during working hours, e.g. from 21°C to 17°C. Also, activate vacation mode when you are on holiday.
When using Connect Thermostat, the average European saving potential is up to 30% on your heat consumption. Read more here.

The older your thermostats are when exchanging them, the greater your energy savings will be.

Connect Thermostat was the first electronic thermostat ever to achieve the prestigious AA energy certificate from eu.bac.

Please go to our Danfoss Link™ App Helpdesk and get the assistance you need.

To ensure that the radiator thermostat can reach the set temperature quickly, we recommend a difference between Away/Asleep mode and At Home mode at max. 4 ˚C.

Danfoss Link™ offers a precise and energy efficient heating regulation by adapting itself to the heating system. This takes approximately one week after installation. Therefore, during the first week you can experience fluctuations as the thermostats are learning when to start heating to reach the specific temperature at the specific time (adaptive learning). After this period, you can enjoy the perfect temperature in your home whenever you want it.

Room devices

  • Connect Thermostat
  • Floor Thermostat
  • Danfoss Icon™ Room Thermostat


Service devices

  • Hydronic Controller
  • Repeater Unit
  • PR rely
  • DCM & CCM & DLG



The Danfoss Link™ Central Controller can be used in detached single-family homes of less than 300 m² with a maximum of 30 Connect Thermostats per Danfoss Link™ Central Controller.

You can connect up to 50 devices in total to Danfoss Link™ Central Controller and thereof max. 30 Connect Thermostats to Danfoss Link™. Danfoss Link™ controls up to 10 devices in one room.

Maximum number of devices you can add to Danfoss Link™:

  • 1 Central Controller
  • 30 Connect Thermostats
  • 3 Hydronic Controllers
  • 3 Repeater Units
  • 30 Room Thermostats
  • 30 Floor Thermostats
  • 30 PR relays
  • 1/1/1 DCM/CCM/DLG

Yes, if you have the Wi-Fi version of Danfoss Link™ Central Controller. You can download the app from either App Store or Google Play.

No. Danfoss Link™ assigns a unique ID to every device in the network, so your neighbors cannot control your devices via their Controllers. To ensure reliable wireless communication, Danfoss Link™ uses a robust and world-leading communication technology that is designed specifically for control applications in houses, apartments and smaller offices.

No. Eco™ is a stand-alone product. You need to use Connect Thermostat for Danfoss Link™.

Danfoss ensures that all the devices in your home and the cloud service we provide to your smartphone are secure at all times. The Danfoss Link™ App is developed on a Home Banking platform and so the pairing of the Danfoss Link™ App to the Danfoss Link™ Central Controller is fully secure.

Read End User License Agreement and Disclaimer here.