Choosing among the best smart thermostats for UK homes starts with the heating system. A combi boiler, a boiler with a hot-water cylinder, communal heating and electric underfloor heating use different controls. A room thermostat manages when the heating system runs; a smart radiator valve adjusts one radiator and works alongside the home’s central controls.
Schedules and remote adjustment are useful when routines change, although they do not guarantee lower bills. Existing controls, insulation and how you use the heating also matter. If your current programmer already suits the household, adjusting its schedule or improving draught-proofing may be enough. For prices and ordering, click on the product image.
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Best Smart Thermostats for UK Homes – our recommendations
tado° Wireless Smart Thermostat X (2nd gen) UK Starter Kit with Programmer and Stand
This kit pairs a wireless room sensor with a receiver and programmer, making it useful where the room control needs to sit away from the boiler. The UK version includes hot-water control, with the receiver supporting relay or OpenTherm operation where the heating system allows it. It also provides a route into tado° X radiator controls. Before choosing it, check the boiler terminals, zone valves and cylinder wiring against tado°’s compatibility guidance. The room sensor can be placed in a suitable position to measure the temperature of the main living area.
tado° Wired Smart Thermostat X (2nd gen) Starter Kit
The wired X kit combines a room thermostat with Bridge X for app connectivity. It suits homes with a compatible thermostat cable in the right location and can use relay or OpenTherm control where the boiler supports it. The system can be expanded with tado° X radiator valves, and a suitable Thread border router can provide connectivity in place of Bridge X. Check whether the wiring and existing heating controls match the kit before installation. tado° X devices belong to a different range from the older V3+ products.
Hive Thermostat V4 for Combi Boilers and Multizone Heating (852109, Hubless)
This V4 kit is designed for compatible combi boilers and connects to Wi-Fi without a separate Hive hub. The thermostat manages the heating schedule, while a combi boiler heats water on demand. App access is useful when household routines change, and compatible Hive radiator valves can add room-level scheduling. Check your boiler and existing control setup against Hive’s guidance before ordering. Homes with a hot-water cylinder should compare the conventional-boiler package, which includes the controls for stored hot water.
Hive Thermostat V4 for Conventional Boilers with Nano 3 Hub (852112)
This package is intended for compatible conventional or system boilers with a hot-water cylinder. It includes the receiver and Nano 3 hub, and controls heating and stored hot-water schedules. That makes it the V4 option to compare with the heating-only combi kit when the home has a cylinder. Hive radiator valves can be added for room-level control, while this thermostat manages the central system. Check the boiler, zone valves and cylinder controls against Hive’s compatibility information before installation.
Honeywell Home T6R Smart Wireless Thermostat
The T6R is a wireless programmable room thermostat with a tabletop stand, app control and location-based scheduling. Its 7-day programme can be adjusted when plans change, while remote access lets you check and change the temperature away from home. This is the heating-only T6R. Households that need separate timing for stored hot water can compare the T6R-HW model. Check compatibility with the boiler and existing controls, and have the receiver wiring assessed by a heating professional where needed.
Honeywell Home T6R-HW Smart Wireless Thermostat with Hot Water Control
The T6R-HW adds stored hot-water scheduling to the T6R’s heating controls. Its two-channel receiver is intended for systems with a hot-water cylinder, while the wireless thermostat provides app access, a 7-day schedule and geofencing. Check the cylinder thermostat, zone valves and current wiring against the installation instructions before choosing it. The wireless room unit communicates with the receiver, which still connects to the home’s heating and hot-water circuits. A qualified heating professional can confirm the right arrangement for the system.Honeywell Home evohome THR99C3013 Starter Kit with Three Radiator Controllers
Evohome provides room-by-room heating zones through a central controller and radiator devices. This starter kit includes three radiator controllers and the system can be expanded to control up to 12 zones. It supports compatible boilers, heat pumps and hot-water systems, making it a flexible option for larger homes with different heating schedules in different rooms. The system has more components to configure than a single thermostat. Check the included parts and compatibility with your heating system before installation.
Netatmo Smart Thermostat for Individual Boiler (NTH01-EN-EC)
Netatmo’s standard Smart Thermostat is an app-connected controller for compatible individual boilers. It can be installed as a wired or wireless thermostat and uses dry-contact on/off control. The control method differs from OpenTherm, so check the boiler’s requirements before choosing it. This model focuses on heating control; households with other system requirements should confirm them in Netatmo’s compatibility checker. The checker is especially useful for older boilers and less common heating arrangements, where the wiring configuration may affect the choice.
Netatmo Smart Radiator Thermostat Starter Pack (NVP-AMZ)
This starter pack pairs a relay with smart radiator valves and is intended for homes using communal or district heating. It schedules temperatures room by room while the building’s heating system supplies the hot water. In this configuration, the relay assumes heat is already available, so it does not start an individual boiler. The product is therefore best matched to homes without their own boiler. Households with an individual boiler can use Netatmo’s compatibility checker to identify the thermostat kit suited to their system.
Worcester Bosch EasyControl CT200 Smart Thermostat
EasyControl is a connected thermostat designed to work with compatible Worcester Bosch boilers. It manages heating and hot-water schedules and can be paired with Bosch smart radiator thermostats for room-level control. For boilers from other manufacturers, Worcester Bosch specifies an EasyControl Adapter, so check the exact boiler model and adapter compatibility before choosing the system. Its controls are most straightforward when used with a compatible Worcester Bosch setup. The product page includes the current compatibility information and installation guidance.
Meross Smart Wi-Fi Thermostat MTS200BHK(EU) for Boilers and Water Underfloor Heating
The MTS200 is a wired Wi-Fi thermostat for compatible boilers and water-based underfloor heating. It connects over 2.4 GHz Wi-Fi and adds app control to systems using the supported wiring arrangement. The exact regional version matters, so check the manual against the boiler or underfloor-heating actuator before ordering. Electric heating mats use different controls and sensor arrangements. Fixed wiring and mains-voltage connections should be checked by a qualified installer to confirm the device matches the existing system.
tado° Smart Radiator Thermostat X Trio Pack
The trio pack adds three radiator valves to a tado° X setup, allowing each fitted radiator to follow its own schedule. The valves manage radiator heat, while a compatible central controller coordinates the boiler’s demand for heat. Connectivity is provided through Bridge X or a suitable Thread border router. Check the valve fittings and controller requirements for your home, particularly if building a multi-room system from scratch. tado° X products belong to the X range and are separate from the earlier V3+ system.
TP-Link Kasa KE100 KIT Smart Radiator Thermostat Starter Kit
The KE100 KIT includes one smart radiator valve and the KH100 hub for connection to the Kasa app. The hub can support up to 32 KE100 valves, so the system can be expanded as room-by-room control is needed. Adapters are included for common radiator-valve fittings. The KE100 manages the radiator valve, while the home’s central thermostat and programmer continue to manage the heating system. Check the valve fitting and the controls already installed before adding more units.
TP-Link Kasa KE100 Smart Radiator Thermostat
The KE100 is an individual smart radiator valve for an existing Kasa heating setup. Pair it with the KH100 hub to use app schedules and room temperature controls. Supplied adapters fit common radiator-valve types, though checking the existing valve before ordering remains sensible. The KE100 adjusts the radiator it is attached to; the central boiler controller continues to manage the home’s heating system. It can be added room by room to a compatible Kasa setup.
Drayton Wiser 2nd Gen Smart Radiator Thermostat TRV – 5 Pack
This radiator thermostat adds room-level schedules to a Drayton Wiser system. It connects to a compatible Wiser hub, either from a starter kit or as part of an existing installation. Drayton says its current radiator thermostat fits more than 95% of existing radiator valves, with adapters for common fittings. Check the model number, valve type and hub generation before ordering. The radiator unit controls the fitted valve, while the Wiser central controls manage the boiler and overall heating schedule.
Aqara Radiator Thermostat W600
The W600 is a smart radiator valve with Thread and Zigbee connectivity. Thread mode supports Matter with a suitable Thread border router, while pairing with an Aqara Zigbee hub enables additional features in the Aqara app. It uses two AA batteries and fits M30 x 1.5 mm valves, with adapters for several other common types. Check the radiator valve body before ordering. The W600 adjusts the radiator it is fitted to and works alongside the home’s central heating controls.
SONOFF Zigbee Thermostatic Radiator Valve TRVZB
The TRVZB is a Zigbee radiator valve with temperature schedules and open-window detection. It fits M30 x 1.5 mm valves and includes adapters for other common fittings. App control requires a compatible Zigbee hub or coordinator. In a household already using Zigbee, it can be added to the existing smart-home setup and configured for the room where it is fitted. The valve manages that radiator, while the central thermostat and programmer continue to control the boiler and heating schedule.
Eve Thermo (Matter, 5th generation) Smart Radiator Thermostat 2-Pack
This two-pack of Eve Thermo valves uses Matter over Thread and is intended for a setup with a compatible Matter controller and Thread border router. It adds schedules and temperature control for two radiators, with available features depending on the smart-home platform in use. Check the included adapters against the radiator valve bodies before ordering. Eve Thermo controls the fitted radiators, while the household’s central heating controls continue to manage the boiler. It can fit into an existing Matter system across supported platforms.
Aqara Floor Heating Thermostat W500
The W500 is a wired control for compatible floor-heating systems, including electric heating and hydronic loops using suitable normally closed actuators. Its stated maximum is 16 A or 3,600 W, so the circuit and connected load need to match the thermostat’s rating. It supports Thread and Zigbee. Confirm the floor sensor and actuator requirements for the existing system before installation. The W500 is a specialist underfloor-heating control, with fixed electrical wiring that should be checked by a qualified installer.
Meross Smart Wi-Fi Thermostat MTS205 EU for Electric Underfloor Heating
The MTS205 is a wired Wi-Fi thermostat for electric underfloor heating, supplied with a floor sensor and rated for loads up to 16 A. Check the sensor type, circuit and total heating-mat load against the model’s instructions before installation. This control is intended for electric floor heating; water-based underfloor systems use a different thermostat arrangement. It can be considered when selecting a replacement for a compatible existing controller. A qualified electrician can confirm the fixed wiring and circuit requirements.
Best Smart Thermostats for UK Homes Resources
- Energy Saving Trust: Thermostats and heating controls – Explains the roles of programmers, room thermostats, radiator valves and hot-water controls.
- Energy Saving Trust: The most economical ways to use your central heating – Practical guidance on using existing controls and setting heating schedules.
- HSE: Check an engineer is Gas Safe registered – Shows how to check an engineer’s registration for gas work.
- Electrical Safety First: Building regulations – Summarises electrical work requirements in England and Wales and how to find a registered electrician.
- GOV.UK: Find a heat pump installer – Helps households find an installer for heat-pump work and check system requirements.
- Netatmo: Compatibility checker – Check whether a particular boiler and wiring arrangement works with Netatmo controls.
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