How to reduce your heating costs with the Fritzbox?
In times of rising energy prices, heating costs can quickly skyrocket in the winter. With Fritz AVM products, you can optimize your energy costs and remotely control the appliances in your home. Are you already using a FRITZ!Box? Then you don't need to spend money on additional products. Your home is already ready to save energy with AVM FRITZ! smart home products.

Understanding your energy consumption
Heating is the number one energy expense in a home.
By choosing energy-efficient AVM Fritz products, such as the Fritz! DECT thermostat, you can regulate the temperature in your home efficiently and save energy. This smart thermostat connects to your Fritzbox and can be programmed to adapt to your lifestyle and needs, meaning you don't have to waste energy by heating your home unnecessarily.

Connected thermostat

Use temperature controllers for each room

Keep control of everything!
Coupled with the FritzApp Smart Home application, you can monitor and control the room temperature of several FRITZ!DECT 301 even when you are not at home. You will know without a doubt, even from a distance, whether the heating is working or not.
Boost mode: Planning to come home early? FritzDect's Boost Mode allows you to start heating quickly at the touch of a button.Vacation mode: When you go on vacation, the Smart Home application automatically ensures that the temperature does not drop too low and protects your radiators from possible dangers if they are not used for a long time, such as frost.Define heating groups: You have several radiators in the same room? You can group them together to form a single group so that you can control them at the same time on your Smart Home application.Protection: FritzDect radiator controls protect the radiator valve from limescale by opening it regularly and closing it briefly.
FritzDect 440 - 4 buttons to control everything
In addition, the FRITZ!DECT 440 has a temperature and humidity sensor. Read the values via your FRITZ!Box or the app and set up scenarios when a certain temperature or humidity is reached.
Four buttons to customizeDefine up to 12 FRITZ! devices or device groups that you can control freely via the four buttons. For example, you can control devices connected to the FRITZ!DECT 200 and FRITZ!DECT 210 smart plugs and regulate the room temperature with the FRITZ!DECT 301 radiator thermostat. By adjusting the intensity of the FRITZ!DECT 500 light bulb, you create a pleasant atmosphere and change the lighting mood at the touch of a button.Automatic updates with new features
The FRITZ!DECT 440 is perfectly matched to your FRITZ!Box and can be easily configured. Regular updates ensure more security and bring new features.
Updated on August 12, 2025

