17 February, 2026
Top 10 Best Best Smart Thermostat Uk For Combi Boiler of 2026
Last Updated - 17 February, 2026
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Up to 31% off
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Our Rankings
Honeywell Home
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Honeywell Home T6 Wired Smart Thermostat - Black - Touchscreen Heating Control with Geofencing, Alexa, Apple & Google - 868 MHZ - Easy Install & App Setup for Combi Boiler & More - CM907 Replacement
8% Off
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Why We Love It
- Smart Scheduling - Customise your heating with a 7-day or 5/2-day schedule, featuring up to 6 daily periods. This Wi-Fi thermostat serves as a smart central heating controller, ensuring optimal comfort and efficiency.
- Geofencing Technology - Utilises your smartphone's location to conserve energy while you're away and restore comfort upon your return. This programmable thermostat is ideal for a wide range of boiler systems working with or without wifi.
- Intuitive Interface - Featuring a modern, sleek black screen, the large, easy-to-read touchscreen combined with intuitive navigation buttons allows for quick and effortless adjustments to this wall thermostat's settings and temperature control.
- Voice Control Ready - Seamlessly integrates with Alexa, Google and Apple ecosystems for convenient management of your thermostat. Features AUTO/MAN/ECO/HOLIDAY modes to suit your lifestyle and enhance energy efficiency.
- Extensive Compatibility - Easy to install, this versatile wired thermostat for central heating supports 24-230V on/off OpenTherm appliances, including gas boilers, combi boilers, and heat pumps, ensuring compatibility and efficiency across various systems.
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meross
Meross Smart Thermostat for Combi Boiler & Water Underfloor Heating, Works with Matter, HomeKit, Alexa, Google and Home Assistant, WiFi Room Thermostat with Timer, App Control, Energy Saving, Hubless
14% Off
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Main Highlights
- Water-Based System Exclusive - Designed for combi boilers and water-based heating systems, work with Matter, Apple Home, Siri, Alexa, Google, Home Assistant and SmartThings. Meross smart thermostat is ideal for UK homes using underfloor water heating. Not compatible with electric underfloor heating. Not for hot water, shower, or water tank. Requiring 2.4GHz WiFi and live + neutral wires, it connects directly to your network with no hub needed, simplifying installation for modern family homes.
- Programmable Thermostat with Dual Mode Comfort & External Sensor - Supporting both heating and cooling modes, this thermostat keeps you comfortable year-round. Add optional external sensors for bathrooms, saunas, or rooms with sensitive flooring, ensuring accurate ambient readings. Its ideal for families who value temperature consistency across rooms and for eco-conscious homeowners optimizing usage in every season. Smart zoning ensures every space stays better climate-controlled.
- Boiler Thermostat with Energy Reports & Open Window Detection - Stay in control with real-time energy usage reports and temperature trends via the Meross app. When you open the window to ventilate, the room thermostat automatically stops heating for a while to avoid energy waste, helping you save energy and reduce costs by up to 30%. This makes it the ideal heating thermostat for kitchens, bathrooms, or anywhere heat is easily lost.
- Voice & App Controlled Digital Thermostat - Compatible with Matter, Apple HomeKit, Siri, Alexa, and Google Assistant, meross digital thermostat lets you manage heating your wayby voice or through meross app. Whether you want to preheat the living room before you get home, turn down the temperature without leaving your bed, or let each family member adjust settings from their own phone, its all quick, simple, and energy-smart.
- Smart Heating with Scheduling & Multi-Zone Control - Plan your heating like clockwork with up to 8 programmable periods per day, enabling true 24/7 control. Whether you want warm floors in the morning or energy-saving overnight settings, this thermostat adapts to your daily rhythm. Installed via a standard 86mm wall mounting box, it supports multi-zone managementperfect for larger homes or flats with individual room needs.
- Wall Smart Thermostat for Family Living - This smart heating controller is built with the modern family in mind. It includes a child lock, memory recovery after power cuts, a dimmable LED screen, and silent touch keysall in a minimalist white glass design that blends into any home interior. From busy households to quiet study corners, it ensures safety, peace, and aesthetics in one device. Whether used in nurseries, bedrooms, or hallways, it combines style and security.
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Our Rankings
Refoss
Smart Thermostat for Combi Boiler/Water Underfloor Heating, WiFi Thermostat Works with Apple HomeKit Siri, Alexa, Google Home, Support Programmer No Hub Required - White - Pack of 1- 240 V
15% Off
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Main Highlights
- Smart Thermostat ControlThe WiFi heating thermostat is compatible with most boiler/water underfloor heating systems. Note: Smart Thermostats only work with two-wire systems! You can control the heating remotely using the free app Refoss or voice control, which is compatible with Apple HomeKit Siri, Amazon Alexa (Echo, Echo Dot), Google Home, or manual touchscreen control. Only 2.4GHz WiFi is supported, and no Hub is required.
- Open Window Detection FunctionSave energy and reduce electricity bills! When a window is detected as open, the smart thermostat will automatically shut down for 30 minutes to avoid energy waste. The app will also send you notifications to remind you when the window is open.
- Dual Temperature SensorTo accurately sense the room temperature for maximum home comfort, we utilize an internal sensor to detect air temperature and an external sensor wire to measure the floor temperature as needed (installing the external sensor wire is necessary for external sensing). You can switch between the sensors based on different scenarios to better control the heat while preventing overheating. Temperature control range: 5-35°C; Measurement temperature accuracy: 0.1°C.
- Schedule and Multi-room ControlYou can add and delete scheduling functions, supporting up to 8 events per day. The thermostat allows for a 24/7 schedule for different rooms. Multiple Alexa thermostats can be used to control different rooms. The heating system turns on and adjusts the temperature automatically when youre at home and turns off automatically when you go out, based on the schedule you set.
- Add Summer Mode Function The summer mode function can be utilized for cooling during the summer and necessitates a cooling-compatible system, such as an air-to-air heat pump system. Please note that certain features mentioned require the latest version of the app. Ensure that you update both your app and firmware. The iOS version has already been released, and the Android version will be available soon.
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Our Rankings
meross
Meross Smart Thermostat for Combi Boilers and Underfloor Water Heating, Glass Touch Panel, Schedule and Multi-room Function, Hubless, Compatible with Apple HomeKit, Amazon Alexa, Google Assistant
20% Off
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Main Highlights
- * [SMART CONTROL] Saving more energy than traditional thermostats! Wireless thermostat for combi boiler supports voice/remote/app and family share control. "Hey Siri, stop the living room's heating", when you about to sleep. Or use remote control to preheat home to 21 when you go back home. Your home always maintains the temperature you like. Compatible with Apple HomeKit, Amazon Alexa, Google Assistant, SmartThings. Easy and quick smart control, saves more time and energy.(2.4GHz Wi-Fi Only)
- [DUAL TEMPERATURE SENSOR] The meross Wi-Fi thermostat has a dual temperature sensor. The built-in sensor measures the air temperature in room, and the external sensor measures the temperature outside room. You can switch the sensor according to different scenarios to better control the heat while preventing overheating. Temperature control range: 5-35°C; Accuracy: 0.5°C.
- * [ENERGY SAVING] Save up to 30% heating costs! The alexa thermostat supports Muti-room function and open-window detection. Use multiple hubless smart thermostats to control different rooms; When detected window-open(temperature dropped sharply), you will get a window opening notification on phone while the room thermostat will stop heating for 30 minutes to avoid electricity waste.
- [SCHEDULE AND FAMILY SHARE] Heating control by zone and time for maximum energy savings. In the meross app, you can clearly see the room temperature and set schedule. Support 7/24 schedule and 6 time windows/day setting, including temperature control and heating on/off for different rooms. If you are not an Apple Home user, you can still use meross app to achieve home sharing control to make your home temperature more comfortable.
- [EAST TO INSTALL/USE] NO HUB REQUIRED! The Wi-Fi heating thermostat is compatible with most boiler/water underfloor heating systems. With app's install instructions or guide video(after product images on top), you can use the meross thermostat after few minutes. Meross app supports Android(above 6.0) and iOS system (13 or above). Quick touch control directly from elegant glass panel, even without using app.
5
Our Rankings
ACMEROTA
Acmerota Smart Thermostat for Combi Boilers WiFi Thermostat for Gas Boiler Heating 2-Wire Programmable Digital Wireless Thermostat Schedule Multi-Room Function, via Smart Life APP, Alexa
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Main Highlights
- Battery-powered---No separate AC power supply required, making installation more convenient. Can be installed anywhere (batteries not included in packaging)
- APP remote control---This product is compatible with Smart Life/Tuya APP for remote control anytime, anywhere
- Voice control---Compatible with Alexa and Google Home. Control your temperature with just one voice command
- Three modes to choose from---Manual mode, program mode, temporary program mode
- Programming function---Weekly 5+2/6+1/7, six time slots on weekdays, two time slots on weekends, supports different temperature settings and runs according to schedule
- Sleep mode---The thermostat cannot be controlled by the app during sleep mode
- Precise control---Enables more precise temperature control for a more comfortable experience
- HUGE INFRARED CODE LIBRARY---Supports 4,000+ brands and 50,000+ cloud infrared codes, with the cloud continuously updating the supported device library
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Our Rankings
Jadeshay
Smart Thermostat for Combi Boiler Underfloor Heating Thermostats Room Thermostat Programmable Temperature Controller Compatible with Alexa for Boiler
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Main Highlights
- Compatibility: This Wi-Fi boiler thermostat uses dry contacts to start and stop your boiler (dry contacts are voltage-free and do not supply power to the boiler, only providing an on/off signal). When the contacts are closed, the boiler starts; when they are open, the boiler stops. The thermostat is flush-mounted and works with dry contact-compatible boiler systems.
- Wi-Fi Smart Control: Control the thermostat with the "Smart Life" app from your phone, tablet, or other mobile device for remote on/off control, timer operation, and temperature control. Compatible with Alexa or Google Assistant voice control, the thermostat lets you enjoy a hands-free, smart lifestyle.
- Programmable Thermostat: Choose between manual and programmable modes, with 5 preset settings for a week and 6 programmable time periods for a day. Energy-saving, cost-effective, and environmentally friendly.
- Shared Management: Create product area groups to share access rights with your family and manage temperature together. Strict and precise temperature control (±1°C) ensures you get the temperature you want.
- LED Display: This boiler thermostat features a color LED display that displays current operating parameters in real time, giving you an intuitive overview of the device's operating status. The touch-sensitive buttons eliminate the need for button jams or non-response. Light touch operation ensures smooth operation.
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Our Rankings
Refoss
Smart Thermostat for Combi Boiler/Water Underfloor Heating, WiFi Thermostat Works with Apple HomeKit Siri, Alexa, Google Home, Wired Installation, Support Remote Smart Heating Control
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Main Highlights
- Smart Thermostat ControlThe WiFi heating thermostat is compatible with most boiler/water underfloor heating systems. You can control the heating remotely using the free app Refoss or voice control, which is compatible with Apple HomeKit Siri, Amazon Alexa (Echo, Echo Dot), Google Home, or manual touchscreen control. Only 2.4GHz WiFi is supported, and no Hub is required.
- Open Window Detection FunctionSave energy and reduce electricity bills! When a window is detected as open, the smart thermostat will automatically shut down for 30 minutes to avoid energy waste. The app will also send you notifications to remind you when the window is open.
- Dual Temperature SensorTo accurately sense the room temperature for maximum home comfort, we utilize an internal sensor to detect air temperature and an external sensor wire to measure the floor temperature as needed (installing the external sensor wire is necessary for external sensing). You can switch between the sensors based on different scenarios to better control the heat while preventing overheating. Temperature control range: 5-35°C; Measurement temperature accuracy: 0.1°C.
- Schedule and Multi-room ControlYou can add and delete scheduling functions, supporting up to 8 events per day. The thermostat allows for a 24/7 schedule for different rooms. Multiple Alexa thermostats can be used to control different rooms. The heating system turns on and adjusts the temperature automatically when youre at home and turns off automatically when you go out, based on the schedule you set.
- Add Summer Mode Function The summer mode function can be utilized for cooling during the summer and necessitates a cooling-compatible system, such as an air-to-air heat pump system. Please note that certain features mentioned require the latest version of the app. Ensure that you update both your app and firmware. The iOS version has already been released, and the Android version will be available soon.
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Our Rankings
EZAIoT
EZAIoT Smart Thermostat- For Gas/Combi Boilers - Wall Mounted WiFi Temperature Controller - Programmable Room Thermostat - Floor Heating - Alexa and Google Assistant Voice Control
31% Off
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Main Highlights
- Important Note: The ezAIoT Smart underfloor heating thermostat is a wall-mounted device for controlling water-based underfloor heating systems; it is compatible with gas boilers that use dry contact signal control; a delay circuit can be configured from zero to five minutes; installation requires a live wire (L) and a neutral wire (N); the device operates on one hundred to two hundred forty volts AC; the maximum current rating is three amps; please note that it does not operate on battery power
- Smart Control & Energy Saving: You can conveniently control the thermostat via the free "Smart Life" app on your mobile phone; voice control is also available through a smart speaker; it supports the creation of product-sharing home groups for centralized control of multiple devices; shared control among family members is possible
- Versatile Features: This WiFi thermostat (no gateway required) offers manual control options; weekly programming is available; power-off memory function ensures continuous operation; frost protection feature prevents cold damage; temperature calibration function provides precise measurements; child lock adds extra safety; adjustable on/off temperature differential is included
- Weekly Programmable: Supports three weekly modes: five plus two (double breaks), six plus one (single breaks), and seven-day unified programming; allows programming of six time periods per day; designed to be smart, environmentally friendly, and cost-effective
- Whats Included: The package includes one thermostat, one user manual, and two mounting screws; additionally, a twenty-four-hour online customer service is available; feel free to contact us anytime with questions
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Our Rankings
BEOK CONTROLS
Wireless Smart Thermostat with Receiver, for Water Underfloor Heating and Gas Boiler, Central Heating Controller,Wifi Room thermostat Digital, Boiler and Hot Water Control via Tuya App＆Smart Speaker
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Main Highlights
- [Controlled Object] Wireless thermostat is suitable for gas boiler and water floor heating systems, such as combi boilers, thermoelectric heads, electric valves, pump etc.
- [WiFi Function]Control the room thermostat anytime, anywhere via the "Tuya" or "Smart Life" smartphone app. Voice Control: Operate your digital thermostat with smart speakers Alexa or Google Assistant; 2.4GHz WiFi network required.
- [Daily Programming]Set a daily heating schedule based on your habits, allowing up to 6 different temperatures per day for a more comfortable and energy-efficient lifestyle.
- [RF Wireless]The thermostat with a receiver uses high-frequency technology. The receiver is connected to the gas boiler, allowing remote control via the temperature controller (used within a 30-meter radius). Therefore, the wireless thermostat can be placed on a desktop or mounted on a wall with screws
- [Package includes] 1 smart thermostat (battery not included), 1 receiver, 1 stand, 1 product manual, 2 screws, 1 USB-C cable, and 1 Jumper.
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Our Rankings
MOES
MOES Smart Thermostat for Water/Combi Boiler Heating | Matter over WiFi | Tuya Platform | Compatible with Apple Home, Alexa, Google Home
20% Off
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Main Highlights
- SMART SCHEDULING: MOES Smart Thermostat offers flexible 5+2 programming, allowing you to set different temperatures for weekdays and weekends. Customize your heating schedule for each day of the week, ensuring optimal comfort and energy efficiency
- MATTER PROTOCOL INTERGRATION: Featuring the innovative Matter protocol, this thermostat ensures seamless compatibility with various smart home ecosystems. Enjoy unprecedented interoperability and future-proof your smart home setup
- WIDE COMPATIBILITY: Works flawlessly with Apple HomeKit, Amazon Alexa, and Google Home. Control your heating system through your preferred platform, making home automation simpler and more unified than ever
- VOICE CONTROL: Adjust your home's temperature effortlessly using voice commands. Compatible with multiple voice assistants, allowing hands-free operation for ultimate convenience
- PRECISE GAS BOILER FLOOR HEATING CONTROL: Specially designed for gas boiler/ combi boiler floor heating systems, the MOES thermostat provides accurate temperature control