
Best selling Thermostats
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. FRITZ! DECT 302
Smart radiator controller for the home network. Radiator thermostat with wireless system communication. Operation: automated, remote control, scheduling. Features: app control, operation, email alerts, configuration, and management. Control temperature and save heating costs. Optimal for FRITZ!Box. Easy setup: In just a few minutes, you can integrate FRITZ!DECT 302 into your home network. Simply register it using the DECT button on the FRITZ!Box and mount the radiator controller on the radiator. The radiator controller is securely integrated into the home network via the DECT ULE standard. With the group function, multiple radiators can be synchronized in one room and seamlessly combined with FRITZ!DECT 300 and 301. Save energy costs: With a customizable schedule tailored to your needs, you can define exactly when and how much heating is required. This not only saves energy but also up to 30 percent on heating costs. A new chip in the FRITZ!DECT 302 enables an advanced energy concept that ensures long battery life for multiple heating periods. Convenient operation even on the go: Want to adjust the temperature independently of your schedule? No problem. You can change the temperature at any time – with FRITZ!Fon and on your tablet or PC. Additionally, the radiator controller has a button for manual adjustment of the room temperature. On the go, you have access to the free FRITZ!App Smart Home, which turns your smartphone into a heating control device. You can also access your settings over the internet. Automatic updates: As with all current FRITZ! products, AVM also provides free automatic updates for FRITZ!DECT 302. These include new features and improvements or enhance security.

2. Aqara E1 SRTS-A01
The Aqara Smart Radiator Thermostat E1 is compatible with a variety of ecosystems and voice assistants, including HomeKit, Alexa, Google, and IFTTT. It will also support the upcoming Matter standard.
External Temperature Measurements: The Aqara Smart Radiator Thermostat E1 can receive temperature readings directly from the connected Aqara Temperature and Humidity Sensor located in another part of the room, even within HomeKit. This ensures more accurate temperature control for the entire room, allowing the thermostat to adjust the radiator based on the actual room temperature.
Energy Savings: When the Aqara Smart Radiator Thermostat E1 is connected to the Aqara Door and Window Sensor or the Aqara Motion Sensor, it will turn off the heating when it detects that a door or window is open or if no motion has been detected for a certain period. Additionally, schedules can be set for desired time periods such as day or night. It can automatically open or close the radiator valve, helping to reduce your energy consumption.
Geofencing and Multi-Apartment Support: No more entering a cold apartment. When you set up geofencing, the radiator thermostat E1 will start heating the apartment before you arrive. If you own more than one apartment, you can set up automations for each of them independently.
Support for Grouping of Various Devices: If there are multiple radiators in a room, they will all be synchronized in the most efficient way based on the actual room temperature.

3. Heatit WiFi6 thermostat (White RAL 9010)
The Heatit WiFi6 is an advanced and user-friendly thermostat suitable for both electric heating systems and water-based heating solutions. It offers a variety of control options, including Wi-Fi (2.4 GHz) and Bluetooth (BLE), allowing for easy operation via the MyHeatit app, a local server, or directly through the control buttons. With its smart home compatibility, the thermostat can be seamlessly integrated into existing systems, enabling flexible and efficient heating control. The ZeroX™ technology ensures an extended lifespan of the device, while built-in safety features such as child lock and temperature limitation provide additional protection. The LCD display with adjustable brightness allows for easy reading and operation.
- Smart Home Ready: Integration with Amazon Alexa and Google Home (coming soon)
- Local API: Control via smart home systems without cloud dependency
- Heating modes: Heating, cooling, and eco for flexible temperature settings
- Sensor variety: Built-in room sensor and external room and floor sensors can be connected
- Energy saving: Active power measurement and open-window detection
- Custom heating plans: Weekly program and profiles (Home, Away, Night, Holiday).

4. Homematic IP Fussbodenheizungscontroller 8-fach
The Homematic IP underfloor heating controller is a state-of-the-art heating control system that allows for precise and efficient regulation of up to eight heating circuits. With a wireless range of up to 340 meters, this device provides a reliable connection and is ideal for controlling underfloor heating in various rooms. The control is wireless, enabling flexible installation and use. The controller can be used for both heating and cooling and connects directly to a wall thermostat without the need for an additional access point. Easy integration with the Homematic IP app ensures user-friendly operation and adjustment of heating parameters. With an IP20 protection rating, the device is suitable for indoor use and guarantees safe operation within the specified ambient temperatures.
- Reliable control of up to 8 heating circuits with automatic hydraulic balancing
- Versatile for heating and cooling
- Direct connection to wall thermostat via Push-to-Pair
- Simple integration into the Homematic IP app
- IP20 protection rating for indoor use.

5. Danfoss Ally
The radiator thermostat Ally is a connected radiator thermostat designed for use in living spaces. The Danfoss Ally radiator thermostat is battery-operated, compact, and easy to use with a handwheel and just a single button. The Danfoss Ally radiator thermostat is a Zigbee 3.0 certified product that is compatible with the Danfoss Ally Gateway and third-party certified systems using Zigbee technology.

6. TP-Link KE100 - Kasa
Take control of your home to the next level with Tapo smart elements. The intelligent thermostat head with direct temperature display from the Tapo family can regulate the temperature in your radiators according to your schedule and instructions from anywhere, thanks to communication with the central unit, which is necessary for proper functionality and can operate up to 32 thermostat heads simultaneously. The head is powered by 2 long-lasting AA batteries, allowing you to enjoy smart living without the need to install new cables or change power outlets in your home.
Key Features
- Remote Control: Manage all the radiators in your house from your phone. No more guessing whether you left the heating on in an empty room.
- Voice Control: Ask Alexa or Google Assistant to fine-tune the temperature in your home.
- Smart Scheduling: Set heating schedules based on your daily routine to make heating more efficient.
- Frost Protection: Ensure that your pipes do not freeze and keep your home safe.
- Child Lock: Prevent children from accidentally operating your radiator.
- DIY Installation: Simply replace your old radiator valve with Kasa and follow the step-by-step guide in the app for installation.
Package Contents
- Thermostat head with M30×1.5
- (2) AA/LR6 batteries
- RA adapter
- RAV adapter
- RAVL adapter
- Lid opener.

7. Meross Radiator thermostat, 1
Easy installation: Unscrew the old thermostat and screw in the new one. Usually, this can be done by hand, but a pipe wrench may be needed in some cases. Depending on the system, adapters are required, which are included in the package. For more information on compatibility, please scan the QR code.
Compatibility with Apple HomeKit. The Meross Smart Home Thermostat supports voice control via Siri, Alexa, and Google. It allows device control through the Meross app and Apple Home (Apple Watch / Apple TV). You can change the current temperature using voice commands. Android users can use the Meross app on Android 4.1 or higher.
A 2.4 GHz Wi-Fi connection is required.
Automatically control the heating via a schedule in the Meross app. Up to six time slots are supported. Open windows are detected, and the heating is automatically stopped for 30 minutes. Up to 30 percent of heating costs can be saved in winter.
The smart thermostat size is M30 * 1.5 mm. The package includes: 1 smart radiator thermostat, 1 installation manual, and 6 connection adapters (Danfoss RA adapter, Danfoss RAV adapter, Danfoss RAVL adapter, Giacomini adapter, Caleffi adapter, M28*1.5 adapter).

8. Fibaro Radiator
The Fibaro radiator thermostat is easy to install without needing to interfere with the heating system's water circuit. You can also connect an external sensor that measures the temperature at any location in the room.

9. Homematic IP Wall thermostat WTH-1
Homematic IP Smart Home wireless wall thermostat with humidity sensor. Smart room thermostat with display - HmIP-WTH-1. Central control unit for the Homematic IP room solution. Displays the set and current temperature as well as the humidity. Up to three weekly profiles and six heating phases per day. Direct activation of the boost function for full heating power over a short period. Manual setting of the target temperature with an accuracy of 0.5 °C.

10. H-Tronic TS 125 Temperature switch
The plug-and-play universal temperature switch TS125 is suitable for all applications where temperature control is required in heating or cooling operations. The external sensor measures temperatures ranging from -55 to +125 °C.
