
Best selling Thermostats
Here’s a ranking of the best selling Thermostats. To give you a quick overview, we’ve added the most important information about each product. This page always stays fresh and updates automatically.
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. Vaillant Heating controller sensoCOMFORT VRC 720, eBUS interface
The sensoCOMFORT VRC 720 heating controller from Vaillant is an advanced room thermostat designed for the efficient regulation of heating systems. With its weather-compensated control, it optimizes heating performance based on outdoor temperatures, resulting in increased comfort and improved energy efficiency. The controller features a TFT graphic display that allows for user-friendly operation. The intuitive touch controls require no prior knowledge and make it easy to adjust settings. The sensoCOMFORT VRC 720 supports the regulation of up to seven boilers and offers extensive group control functions, including the management of mixing and pumping groups as well as underfloor heating circuits. Additionally, the controller is equipped with a timer that allows for flexible programming. The option to connect to the sensoAPP for mobile control expands the device's capabilities.
- Weather-compensated eBUS controller with TFT graphic display
- Intuitive operation through touch controls
- Regulation of up to 7 boilers and 9 mixing groups
- Integrated timer for flexible programming
- Compatible with sensoAPP for mobile control.

Vaillant Heating controller sensoCOMFORT VRC 720, eBUS interface
3. TP-Link Room Thermostat, Digital thermostat, Room, WLAN, 922 MHz, White, Buttons
The TP-Link Room Thermostat is a digital thermostat specifically designed for indoor use. It offers user-friendly control via buttons and allows for easy adjustment of room temperature. Equipped with a Wi-Fi interface, the thermostat can be conveniently controlled through a smartphone, enabling flexible temperature regulation from anywhere. The E Ink display provides a clear and easily readable indication of the current temperature and settings. The device features a humidity sensor that contributes to accurate regulation of the indoor climate. It is powered by AAA batteries, which offer a long lifespan of up to one year. The thermostat is suitable for wall mounting and supports a temperature control range of 0 to 50 °C, making it a practical solution for various room sizes and conditions.
- Power source: DC with a battery life of up to one year
- Temperature control range from 0 to 50 °C
- Integrated humidity sensor to enhance indoor climate control
- Compatible with Google Assistant and Amazon Alexa for voice control
- E Ink display for clear readability of temperature and settings.

TP-Link Room Thermostat, Digital thermostat, Room, WLAN, 922 MHz, White, Buttons
4. Vaillant Contact thermostat
The Vaillant installation thermostat VRC9642 is a highly advanced control device specifically designed for regulating underfloor heating systems. With a wide adjustable range of +10 to +90 degrees Celsius, this thermostat allows for precise temperature control that meets the individual needs of users. The installation thermostat is equipped with a switching contact and offers a contact load of 230 V, making it a reliable choice for various heating systems. The strap mounting ensures easy installation and adaptation to different conditions. The VRC9642 is compatible with Vaillant systems sensoCOMFORT, sensoHOME, multiMATIC 700, and calorMATIC, highlighting its versatility. Manufactured in Germany, this thermostat meets high-quality standards and is a valuable addition to modern heating solutions.
- Adjustable range of +10 to +90 degrees Celsius for flexible temperature control
- Switching contact for versatile applications
- Compatible with sensoCOMFORT, sensoHOME, multiMATIC 700, and calorMATIC
- Easy installation through strap mounting.

5. 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.

6. Eberle Controls EBER room thermostat UP
The EBER Room Thermostat UP from Eberle Controls is an advanced flush-mounted room controller that seamlessly integrates into all common switch programs. With its elegant, pure white design in a 55x55 format without a frame, it harmoniously fits into any living environment. This thermostat is specifically designed for water-based heating systems and allows for easy installation, which can be done without a WiFi connection. Integration into smart home systems is easily achievable via the Matter WiFi standard, enabling connections to popular platforms like Google Home, Apple Home, and Amazon Alexa. The programmable clock function can be conveniently set via the smart home app, allowing for flexible control of room temperature. Additionally, the thermostat offers a variety of features that optimize the comfort and efficiency of heating and cooling processes.
- Compatible with common smart home apps like Google Home and Amazon Alexa
- Frost protection function to prevent frost damage
- Adjustable temperature range for individual customization
- Unauthorized access protection for added security
- Heating/cooling switch for versatile use.

7. tado° Smart Thermostat X - Starter Kit incl. 1 Bridge
Smart: Save energy and money every day with thoughtful features that make your heating more efficient than ever, now with future-proof technology. Individual: Control the temperature in every room from anywhere via an app, developed by experts in smart heating. Simple: tado° replaces wired room thermostats and is compatible with gas boilers, heat pumps, and water-based underfloor heating; easy to install yourself, even without an internet connection. Also included: the Bridge X, which allows you to easily connect all your smart home devices. Proven: Installed millions of times, tested, and praised - tado° users save an average of 22% energy. Not compatible with tado° V3+/ V2 devices.

8. Heatit RAL 9003
The Heatit WiFi6 Thermostat is an advanced electronic control device specifically designed for electric heating systems. With its user-friendly interface, it allows for easy control via the "MyHeatit" app, as well as through Wi-Fi, Bluetooth, or directly on the device. The thermostat offers three operating modes: Heating, Cooling, and Eco, enabling flexible adjustments to different room temperatures and needs. It is suitable for installation in standard junction boxes and features a built-in temperature sensor with the option to connect two external sensors. The device's open API ensures future compatibility with smart home systems such as Amazon Alexa and Google Home. Installation is straightforward via Wi-Fi or Bluetooth, with complete control remaining in the hands of the user. The "MyHeatit" app allows for the creation of individual profiles and the management of connected devices, while ZeroX technology ensures a long lifespan for the relay.
- Three operating modes: Heating, Cooling, Eco
- Integration of external temperature sensors
- Compatibility with smart home systems (pending)
- Creation of individual profiles via the app
- ZeroX technology for high reliability.

9. 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).

10. Nous Smart Humidity & Temperature Sensor E5 ZigBee
The Smart Humidity & Temperature Sensor E5 from Nous is an advanced device designed to provide accurate temperature and humidity measurements indoors. Equipped with ZigBee 3.0 technology, the sensor seamlessly integrates into existing smart home systems. It is battery-operated, allowing for flexible installation without the need for fixed wiring. The plastic housing ensures durability and an appealing look that fits into various living environments. With its high accuracy and reliability, the E5 sensor is ideal for monitoring indoor climate, contributing to improved living comfort and optimal air quality. Its ease of use and ability to integrate into smart home systems make it a practical solution for tech-savvy users.
- Battery-powered for flexible placement
- Compatible with smart home systems thanks to ZigBee 3.0
- Made from durable plastic for an attractive appearance.
