10 Best Smart Thermostat Wired in The UK

Last updated on 06/07/2025

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tado° Smart Radiator Thermostat 3-Pack- Works with Alexa, Siri & Google Assistant & Wired Smart Thermostat - WiFi Add-On Thermostat for Multi-Room Control - Digital Heating Control

Why We Love It

Individual radiator and zone control.
App enabled temperature management.
High compatibility with radiators.

Main Highlights

Product 1: tado° Starter Kit Add-on: add additional Smart Radiator Thermostats to your setup to control multiple radiators and zones individually
Product 1: Control all rooms within one app for precise temperature management; maximise your comfort and energy savings
Product 1: Fits most radiators with thermostatic radiator valves (various adapters are included); it can be mounted vertically or horizontally
Product 1: Only works with a tado° Starter Kit (V2, V3, V3+), available separately
Product 2: tado° Starter Kit Add-on: add additional Wired Smart Thermostats to your setup to control multiple rooms individually
Product 2: Control all rooms within one app; maximise your comfort and energy savings
Product 2: Only works with a tado° Starter Kit (V2, V3, V3+), available separately
Product 2: Compatible with 95% of all heating systems including hydronic underfloor heating; you need the Wired Smart Thermostat if you have a conventional wired room thermostat to control the boiler

Honeywell Home T6 Wired Smart Thermostat, Black

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Why We Love It

Simple touch-screen interface convenience.
Remote control from anywhere.
Adapts to your routine.

Main Highlights

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.

tado° Wired Smart Thermostat Starter Kit V3+ The Smart Thermostat Gives You Full Control Over Your Heating From Anywhere, Save Energy, Easy DIY Installation, Works With Amazon Alexa, Siri, and Google

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Why We Love It

Saves energy and money.
Offers intelligent climate control.
Easy installation process.

Main Highlights

SAVE ENERGY with the smart heating expert; tado° Wired Smart Thermostats are designed and engineered in Germany and made for you to save energy in your home; with a Money-Back Guarantee
QUALITY AND EXPERTISE: tado° leads in intelligent climate control technology, widely installed across Europe, known for its reliability and ease of use via the app, and compatible with popular smart speakers like Alexa, Siri, and Google
UNIQUE FEATURES: The tado° app offers smart heating control on your smartphone with Open Window Detection (no extra sensors needed), Smart Schedules, Multi-Room Control, energy savings insights, and more
ADVANCED GEOFENCING: tado° Geofencing lets you control your heating during your absence and preheat before you come home, giving you more control than simply turning it on or off based on your location
COMPATIBILITY: Wired Smart Thermostats replace existing thermostats connected to boilers of almost every manufacturer, also compatible with your hydronic underfloor heating; add more Wired Smart Thermostats to control multiple zones
EASY INSTALLATION: Easily install the Wired Smart Thermostat yourself; the instructions in the app are tailored to your exact system and guide you step by step
FEEL-GOOD PACKAGE: Auto-Assist gives energy cost transparency (including monthly comparison), informs you if your heating behaves unusually; for more comfort, Geofencing and Open Window Detection are fully automated; book in the app, cancel anytime

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

17% OffFree Shipping

Why We Love It

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

Main Highlights

HIVE Plus – 12 months free annual plan included with this purchase to help you save even more
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

Ariston 3319126 Smart Thermostat WiFi Cube S Net Wired, Black/White, 10,4 x 1,9 x 10,4 cm

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Why We Love It

Smart thermostat for easy installation.
Control temperature remotely with ease.
Compatible with voice control systems.

Main Highlights

SMART THERMOSTAT WITH LCD SCREEN AND EASY INSTALLATION: Thermostat with Wifi designed and manufactured to be installed in Spain, compatible with Ariston boilers and with dimensions of 19x104x104 mm. Product with refined black finish for easy installation, LCD display and full 3 year warranty
CONTROL YOUR HEATING WITH REMOTE MANAGEMENT: You can control, set and modify your home temperature from anywhere and easily with the Ariston Net App
WITH VOICE CONTROL AND SMART COMPATIBILITY: You can voice control the heating, integrating it into Amazon Alexa, Google Home and Apple HomeKit smart home systems
OFFERS BETTER EFFICIENCY, CAPACITY AND CONSUMPTION: Save up to 40% annually on heating your home (up to 360/year). Get A+ rating if you have a Ariston boiler from the One range!
CONTACT TELE-ASSISTANCE SERVICE: Compatible with Ariston tele-assistance! Hire the tele-assistance and our official technical service will take care that your boiler is always in perfect condition. We can diagnose or even repair your boiler from remote, without you having to worry and ensuring the best comfort

tado Wired Smart Thermostat - Add-On Thermostat For Multizone Control, Digital Heating Management, Easy Installation, Save Heating Energy And Costs - Replacement Of Existing Wired Thermostats

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Why We Love It

Saves energy and money.
Offers smart central control.
Allows easy DIY installation.

Main Highlights

SAVE ENERGY AND MONEY: Expand your tado starter kit with wired smart thermostats to control your boiler or water-based underfloor heating, designed in Germany and already used by millions across Europe
SMART CENTRAL CONTROL: Individually manage multiple rooms or zones, set Smart Schedules for each room using your smartphone according to your routine, and maximise your home comfort
REQUIREMENTS: Only works with a tado Starter Kit (V2, V3, V3+) that includes the Internet Bridge, which you need only once per home - available separately
COMPATIBILITY: tado works with almost all heating systems of most manufacturers; simply replace existing wired thermostats to control your home’s central heating, ground or air source heat pump, or your hydronic underfloor heating
FOR RENTED PROPERTIES: You can use the smart thermostats even if you live in a rented property - simply reinstall the old equipment when you move out
EASY DIY INSTALLATION: To connect your additional smart thermostats, simply follow the instructions in your tado app; no expert knowledge is needed
FEATURES: Advanced Geofencing, Weather Adaptation, Statistics, Energy Savings Report, Multi-Room Control (additional smart thermostats required), Heating Boost Function

tado° Smart Thermostat Starter Kit V3+ - Intelligent heating control, works with Amazon Alexa, Apple HomeKit, Google Assistant, IFTTT

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Why We Love It

Control heating anytime, anywhere.
Saves money with intelligence.
Heats instantly with one click.

Main Highlights

Full control over your heating with the tado° app from anywhere, reduce your energy consumption and save money with the intelligent features tado° offers
Heating Boost: heat up all rooms for 30 minutes with one click in the app
Smart Schedules for the perfect temperature individually in each room, at any time; only active when someone’s home; can optionally be turned on and off with one click in the app
If no one is home or an open window has been detected, the tado° app reminds you to turn down the heating via push notification
Further advantages with Auto Assist (optional): If no one is home or open windows have been detected, tado° automatically turns down the heating; Care & Protect helps to solve heating problems (in-app purchase, cancel monthly; £2.99/month)
Compatible with almost every heating system including gas boilers, oil boilers, condensing boilers, OpenTherm systems & hydronic underfloor heating; replaces your conventional wired room thermostat
Further features: Weather Adaptiation, Insightful Statistics, Energy Savings Report, multi room control (additional Smart Thermostats required), heating boost function, frost protection

Bosch Smart Home Room Thermostat II for Wired Heating Systems, 230 V, Compatible with Google Assistant and Alexa

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Why We Love It

Precise temperature for comfort.
Handy remote monitoring option.
Personalized heating schedules.

Main Highlights

Precise heat regulation: Smart in-wall control unit for wired heating systems or existing underfloor heating systems ensures an optimum feel-good temperature
Keep track of the temperature: Thermostat shows the current room temperature, heating status and relative humidity on an LED matrix display
Convenient control: Adjustment possible on the device using rotary/push knob, fully automatically, via app from a remote location or voice commands with Amazon Alexa and Google Assistant
Flexible time programmes: Temperature control via individual heating plans and adjustable heating breaks allowing a pause in heating as necessary in each room
Maximum added value in the system: you need a Bosch Smart Home controller or Bosch Smart Home controller II to integrate the device into your Bosch Smart Home system
Package contents: 1x Room thermostat II 230 V, 1x in-wall housing 230 V, 1x wire bridge, quick start guide (11 languages)

Honeywell Home T3 Wired Smart Thermostat Kit - Wall Thermostat with Flexible Programming & ECO Mode - Battery Operated, Compatible for Combi Boilers & Heat Pumps - CM907 Replacement (T3C110AEU)

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Why We Love It

Adapts to personal comfort needs.
Responsive and user-friendly navigation.
Efficient energy-saving features.

Main Highlights

Versatility & Compatibility - This smart thermostat is designed to work seamlessly with 24-230V on/off and OpenTherm appliances such as combi boiler systems, heat pumps, gas boilers, and zone valves, making it suitable for various environments.
Intuitive 7-Day Scheduling - Experience flexible programming options with this smart central heating controller. Set up to 6 independent time slots per day, easily copy schedules across days, and switch effortlessly between OFF, Manual, Eco and Auto modes.
Modern, Minimalistic Design - Featuring a large backlit screen and an intuitive interface, this boiler thermostat is easy to operate and allows you to review current settings at a glance. Comes with a 2-year warranty.
Smart Home Integration - Connect this digital thermostat to your home heating system for seamless control. The T3 Series is the top choice for heating professionals and customers too.
Efficient, Reliable Operation - This wall thermostat features a self-learning TPI algorithm that adapts to your space. Battery-powered for consistent performance, it also replaces the CM907 and includes automatic time clock adjustment. (2 AA batteries included).

Honeywell Home DT3 Wired Thermostat for Heating Control with Energy Efficient LED, No WiFi or App Required (White)

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Why We Love It

Intelligent design with user-friendly interface.
Compatible with various heating systems.
Energy-saving with built-in eco mode.

Main Highlights

The Only Thermostat You Need: Built on feedback from professionals, the simple, intelligent DT3 thermostat range brings together slim, modern design with easy to use functions. Choose a wired or wireless room thermostat to suit any setup.
Versatile: This wall mounted, wired smart thermostat can be installed standalone. 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 heat pumps, zoning, underfloor and OpenTherm.
Customer Favourite:This Honeywell thermostat provides easy adjustability,, built in frost protection, and self learning TPI fuzzy logic control. The slim design looks sleek and modern in any home. Batteries required.
Energy Saving Programs: The basic home thermostat includes a built in boost mode to increase room temperature for a set time period. Also features a built in eco mode to reduce room temperature for set times to help save on energy costs.
Easy to Install: DT3 wired thermostats come with installation manuals in the box, including QR codes that lead directly to installation videos. Features a wiring plate for easy installation with a variety of systems and applications.

8.9

Excellent

We scanned 1125 products

We reviewed these offers relevant to the Smart Thermostat Wired 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, Honeywell Home, Hive, Ariston, Bosch Smart 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 Wired in the market, we considered we took a deep dive into 5626 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° Smart Radiator Thermostat 3-Pack- Works with Alexa, Siri & Google Assistant & Wired Smart Thermostat - WiFi Add-On Thermostat for Multi-Room Control - Digital Heating Control. We love many things about this product by tado. What sets it apart from the competition is Individual radiator and zone control. , App enabled temperature management. , High compatibility with radiators.
The best value product for most shoppers and where user satisfaction is continuously the highest is Honeywell Home T6 Wired Smart Thermostat, Black by Honeywell Home based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Smart Thermostat Wired and the best cost-to-value ratio is Hive Thermostat for Heating & Hot Water (Conventional Boiler) with Hive Hub - Energy Saving Thermostatat Hive with a 17% discount.
Our list of the best Smart Thermostat Wired 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 Wired in The UK

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We scanned 1125 products

We concluded that: