10 Best Smart Thermostat For Combi Boiler in The UK

Last updated on 16/08/2025

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tado Wireless Smart Thermostat X – Starter Kit with Bridge X and Stand, Boiler and Hot Water Control via App & Smart Speaker (Alexa, Siri, Google Assistant), Not Compatible with tado V3+

Free Shipping

Why We Love It

Quality you can trust.
Affordable and worth it.
User-friendly and straightforward.

Main Highlights

SAVES ENERGY AND HEATING COSTS: The intelligent wireless Thermostat X Starter Kit from tado, the experts for smart heating, contains the Bridge X and, exclusive for Amazon customers, a stand – the more rooms your control, the more you save
EASY DIY INSTALLATION, EVEN OFFLINE: When connected to a boiler, this smart heater thermostat can regulate hot water – suitable for gas-fired boilers or heat pumps (OpenTherm and relay)
CONTROL VIA APP: Smart scheduling, advanced geofencing, open-window sensor without additional window contacts and much more – the thermostat has numerous features for your heating system
FOR YOUR SMART HOME Control the individual temperature in each room with the industry’s leading multizone control, very simply by app or via smart speaker with Amazon Alexa, Google Assistant or Apple Siri
EASY TO USE: The thermostat is operated intuitively via the display
FUTURE-PROOF TECHNOLOGY: Matter allows different smart home appliances to communicate with each other, while Thread ensures a stable network – this requires the Bridge X (included) or another Thread border router
OPTIONAL FEEL-GOOD PACKAGE: Auto-Assist provides you with insights into the energy costs, information and solutions for heating problems as well as automated geofencing and open-window detection
Important to know: tado X products are not compatible with tado V3+ or older

Hive Thermostat for Heating & Hot Water (Conventional Boiler) with Hive Hub - Energy Saving Thermostat

17% Off

Why We Love It

Saves money annually.
Customizable heating schedules.
Frost protection feature.

Main Highlights

Heating and Hot Water schedules – set up to 6 daily time slots
Heating and Hot Water Boost – for up to six hours
Automatic Frost Protection – helps prevent frozen pipes
Geolocation – heating alerts when you leave or return home
Holiday Mode – tell Hive your holiday dates and come back to a warm welcome

New Hive Thermostat for Heating Control (Combi boilers) Nano 3 (Opentherm), White

23% OffFree Shipping

Why We Love It

Customizable daily schedules available.
Convenient heating boost option.
Protects pipes from freezing.

Main Highlights

New OpenTherm feature - OpenTherm tells heating controls and boilers precisely how much heat is needed to reach and maintain the target temperature. Improving efficiency from up to 12% lower gas consumption, extended lifespan of boilers, and more consistent room temperatures. Providing cost savings, added comfort, and a more sustainable home.
New Nano 3 Hub - The latest hub features Wi-Fi connectivity with an improved design, connecting your Hive devices to the internet without messy cables. Now featuring a dual-core processor, it provides fast and reliable performance for large networks of Hive devices.
Heating and Hot Water schedules – set up to 6 daily time slots
Heating and Hot Water Boost – for up to six hours
Automatic Frost Protection – helps prevent frozen pipes
Geolocation – heating alerts when you leave or return home
Holiday Mode – tell Hive your holiday dates and come back to a warm welcome

New Hive Thermostat for Heating Control (Combi boilers and multizone Hubless) Opentherm, White

Free Shipping

Why We Love It

Energy-efficient heating control.
Convenient scheduling options available.
Automatic frost protection offered.

Main Highlights

New OpenTherm feature - OpenTherm tells heating controls and boilers precisely how much heat is needed to reach and maintain the target temperature. Improving efficiency from up to 12% lower gas consumption, extended lifespan of boilers, and more consistent room temperatures. Providing cost savings, added comfort, and a more sustainable home.
Heating and Hot Water schedules – set up to 6 daily time slots
Heating and Hot Water Boost – for up to six hours
Automatic Frost Protection – helps prevent frozen pipes
Geolocation – heating alerts when you leave or return home
Holiday Mode – tell Hive your holiday dates and come back to a warm welcome
Hive Hub is needed for remote or app control of heating

Netatmo Connected and Smart Energy Saving Thermostat - WiFi - Reduce Bills & Control Heating Remotely by App | Compatible with Individual Boilers, NTH01-AMZ

3% OffFree Shipping

Why We Love It

Saves energy and money.
Voice and distance control.
Quick and easy installation.

Main Highlights

EASY ENERGY SAVINGS: the heating schedule saves you money and heats your home to just the right temperature. Going on holiday? Set the Absent and Frost Protection modes
VOICE AND DISTANCE CONTROLLED HEATING: control your Smart Thermostat from a distance via your smartphone, tablet or computer or with voice control thanks to Apple HomeKit, Alexa and Google Assistant compatibility. Temperature (measurements): Range: 0°C to 50°C (± 0.1°C)
QUICK AND EASY TO INSTALL: it takes less than an hour to install the Netatmo Smart Thermostat
A SMART THERMOSTAT: the Auto-Adapt feature takes into account the outdoor temperature and your home's insulation to make sure your home stays at the temperature you set
COMPATIBILITY: the Netatmo Smart Thermostat is compatible with most types of boiler, whichever energy you use: electricity, gas, fuel oil, wood or heat pump
CONSUMPTION INFORMATION AND ADVICE: view your history and consult your personalized Energy Savings Report to track and optimize your energy usage
DESIGNED BY STARCK: your Netatmo Smart Thermostat blends into your home décor with a design by Philippe Starck and adhesive strips in four colors
IDEAL TEMPERATURE IN EACH ROOM: use Netatmo Additional Smart Radiator Valves to turn radiators on and off independently

New Hive Thermostat for Heating and Hot Water Control (Conventional boilers) Nano 3, White

23% OffFree Shipping

Why We Love It

Customizable heating schedules available.
Convenient frost protection feature.
Welcoming home after holidays guaranteed.

Main Highlights

New Nano 3 Hub - The latest hub features Wi-Fi connectivity with an improved design, connecting your Hive devices to the internet without messy cables. Now featuring a dual-core processor, it provides fast and reliable performance for large networks of Hive devices.
Heating and Hot Water schedules – set up to 6 daily time slots
Heating and Hot Water Boost – for up to six hours
Automatic Frost Protection – helps prevent frozen pipes
Geolocation – heating alerts when you leave or return home
Holiday Mode – tell Hive your holiday dates and come back to a warm welcome
Hive App: turn your heating on and off via the Hive app or with your voice

Drayton by Schneider Electric

Drayton by Schneider Electric Multi-Zone Smart Thermostat and 2 Smart Radiator Thermostat Kit - Combination Boilers Only - Heating Control

Why We Love It

Save money on heating bills.
Easy DIY installation process.
Customisable room-by-room control.

Main Highlights

SAVE ON ENERGY BILLS - With full control of your Wiser system from our app, you can monitor your energy use, predict expenditure and set your own budgets. With smart features such as Away Mode and Eco Mode, you have the power to save up to £575 a year.
COMPATABILITY This kit is designed to work with Combi Boilers Only and will allow control of your heating syste only.
ROOM-BY-ROOM HEATING CONTROL - Each kit comes with two radiator thermostats so you can start controlling key rooms independently, then you can continue to expand your system and maximise your comfort by adding one to each radiator as and when you are ready.
DIY SETUP - The Heat HubR can be installed on a standard wallplate in minutes. It really is as simple as unscrewing your old controller and screwing in your new Heat Hub. Check the instructions for full guidelines.
INSIGHTS & HEAT REPORT - - Insights help you to make wiser decisions when it comes to controlling your home heating. The Heat Report lets you see exactly what your system is up to – anytime, anywhere.
CUSTOMISABLE SETUP – Wiser can support up to 16 rooms, 62 Radiator Thermostats and up to 10 Smart plugs, no matter the layout of your home, Wiser can help.
OPEN WINDOW DETECTION – This feature switches the heating off if the thermostat detects a draft from an open window, also helping to save energy wastage and money. It can be switched on or off for each room in the house from the app.
KIT ADD ONS – You can add further radiator thermostats and smart plugs to allow even more control of your heating system. Add radiator thermostats to all rooms to enable complete room by room control.
Included in this kit is 1 x Wiser Room Thermostat, 1 x HubR and 2 x Radiator Thermostats. More thermostats can be added at any time by simply replacing your manual TRVs with Wiser Radiator Thermostats, without having to drain your system. Wiser Plugs may be needed to boost signal in larger houses.

Hive Thermostat for Heating control (Combi Boiler and Multizone) without Hive Hub

Why We Love It

Saves money annually.
Smart combi control.
Flexible heating schedules.

Main Highlights

HIVE Plus – 12 months free annual plan included with this purchase to help you save even more
Combi Boiler Thermostat - This Hive smart thermostat is for combi boilers
Heating and Hot Water schedules – set up to 6 daily time slots
Heating and Hot Water Boost – for up to six hours
Automatic Frost Protection – helps prevent frozen pipes
Child lock* – put a pin lock on your app or thermostat so children can’t tamper with it
Geolocation – heating alerts when you leave or return home
Hive Hub is needed for remote or app control of heating

tado Smart Thermostat X – Starter Kit Wired Room Thermostat & Bridge X, Control via App & Smart Speaker (Alexa, Siri, Google Assistant), DIY Installation, Not Compatible with tado V3+

9% OffFree Shipping

Why We Love It

Easy installation for all systems.
Control your thermostat remotely.
Compatible with smart home devices.

Main Highlights

SAVES ENERGY AND HEATING COSTS: The thermostat X Starter Kit from tado, the experts for smart heating, includes the Bridge X and, exclusive for Amazon customers, an additional battery set – the more rooms you control, the more you save
EASY DIY INSTALLATION, EVEN OFFLINE: The smart heater thermostat is suitable for gas boilers that support OpenTherm and relay control, heat pumps and water-fed underfloor heating with a wired thermostat
CONTROL VIA APP: Smart scheduling, advanced geofencing, open-window sensor without additional window contacts and much more – the thermostat has numerous features for your heating system
FOR YOUR SMART HOME As well as adjustment directly on the thermostat, you can set the individual temperature in each room very simply using the app or a smart speaker such as Amazon Alexa, Google Assistant or Apple Siri
EASY TO USE: The thermostat is operated intuitively via the display
FUTURE-PROOF TECHNOLOGY: Matter allows different smart home appliances to communicate with each other, while Thread ensures a stable network – this requires the Bridge X (included) or another Thread border router
OPTIONAL FEEL-GOOD PACKAGE: Auto-Assist provides you with insights into the energy costs, information and solutions for heating problems as well as automated geofencing and open-window detection
Important to know: tado X products are not compatible with tado V3+ or older

Honeywell Home DT3R Wireless Thermostat for Heating Control with Energy Efficient LED, No WiFi or App Required (Black)

6% OffFree Shipping

Why We Love It

Slim, modern, and user-friendly design.
Versatile and energy-saving capabilities.
Easy to install.

Main Highlights

The Only Thermostat You Need: Built on feedback from professionals, the programmable DT3 smart thermostat range brings together a slim, modern design with easy to use functions. Choose a wired or wireless room thermostat to suit any installation.
Versatile: The wireless thermostat can be installed standalone or part of an existing system, including conventional and combi boilers, and new heating systems. Compatible with hybrid and green heating systems.
User Friendly: Intuitively designed digital thermostat for easy operation. Features capacitive touch buttons and an easy to read, energy efficient, LED based dimming display that turns off when the screen is not in use.
Forward Thinking Design: Backward and forward compatible with both heating and cooling, including gas boilers, combi-boilers, and heat pumps. This system can be integrated with other smart devices from Honeywell Home.
Customer Favourite: This Honeywell thermostat provides easy programming, built in frost protection, and self learning TPI fuzzy logic control. The slim design looks sleek and modern in any home.
Energy Saving Programs: The Honeywell wireless thermostat includes a built in boost mode to increase room temperature for a set time period. It also features a built in eco mode to reduce room temperature for set times to help save on energy costs.
Easy to Install: DT3R wireless thermostats come with installation manuals in the box, including QR codes that lead directly to installation videos. Features easy installation with a variety of systems and applications.

8.7

Excellent

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We scanned 603 products

We reviewed these offers relevant to the Smart Thermostat For Combi Boiler within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like tado, Hive, Netatmo, Drayton by Schneider Electric, Honeywell Home, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Smart Thermostat For Combi Boiler in the market, we considered we took a deep dive into 3016 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is tado Wireless Smart Thermostat X – Starter Kit with Bridge X and Stand, Boiler and Hot Water Control via App & Smart Speaker (Alexa, Siri, Google Assistant), Not Compatible with tado V3+. We love many things about this product by tado. What sets it apart from the competition is Quality you can trust. , Affordable and worth it. , User-friendly and straightforward. .
The best value product for most shoppers and where user satisfaction is continuously the highest is Hive Thermostat for Heating & Hot Water (Conventional Boiler) with Hive Hub - Energy Saving Thermostat by Hive based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Smart Thermostat For Combi Boiler and the best cost-to-value ratio is New Hive Thermostat for Heating and Hot Water Control (Conventional boilers) Nano 3, Whiteat Hive with a 23% discount.
Our list of the best Smart Thermostat For Combi Boiler is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Smart Thermostat For Combi Boiler in The UK

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We scanned 603 products

We concluded that: