10 Best Smart Thermostat for Combi Boiler WIFI in the UK 2025
Updated on 08/07/2025
#1
Recommended
17% Off
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- Includes a 50% discount on the annual plan
- Set up to six daily heating and hot water schedules
- Heating and hot water boost function for up to six hours
- Automatic frost protection for frozen pipes
- Geolocation notifications based on your location
- Control heating via the Hive app or voice commands
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- Includes a 50% discount on the annual plan
- Set up to six daily heating and hot water schedules
- Heating and hot water boost function for up to six hours
- Automatic frost protection for frozen pipes
- Geolocation notifications based on your location
- Control heating via the Hive app or voice commands
#2
Value for Money
6% Off
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- Summer mode functionality requires compatibility with cooling systems; ensure the app and firmware are up to date for optimal use.
- Wi-Fi thermostat compatible with most boiler and water underfloor heating systems; supports heating control only, not hot water; voice and app control available with major platforms.
- Schedule up to 8 events per day for multiple rooms, visible daily temperature; supports home-sharing control via meross app even without Apple Home integration.
- Features dual temperature sensors for air and floor temperature measurement; switchable sensors for accurate heating control with a range of 5-35°C and 0.5°C accuracy.
- Open-window detection helps reduce heating costs by stopping the heating for 30 minutes when a drop in temperature is detected due to an open window.
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- Summer mode functionality requires compatibility with cooling systems; ensure the app and firmware are up to date for optimal use.
- Wi-Fi thermostat compatible with most boiler and water underfloor heating systems; supports heating control only, not hot water; voice and app control available with major platforms.
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#3
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- WiFi enabled thermostat for boiler and underfloor heating, functional without Wi-Fi. Requires 220V power and 2 wires from boiler.
- Remote control via Smart Life/Tuya App for temperature settings, scheduling, and device sharing. Requires 2.4GHz WiFi.
- Compatible with Alexa and Google Assistant for voice-controlled temperature adjustments.
- Features manual, program, and holiday modes with customizable weekly scheduling for energy savings.
- Includes open window detection to pause heating, along with calibration, reset, child lock, and data saving features.
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- WiFi enabled thermostat for boiler and underfloor heating, functional without Wi-Fi. Requires 220V power and 2 wires from boiler.
- Remote control via Smart Life/Tuya App for temperature settings, scheduling, and device sharing. Requires 2.4GHz WiFi.
- Compatible with Alexa and Google Assistant for voice-controlled temperature adjustments.
- Features manual, program, and holiday modes with customizable weekly scheduling for energy savings.
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#4
11% Off
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- OpenTherm technology optimizes heating efficiency by precisely managing heat requirements, resulting in up to 12% reduced gas consumption and enhancing boiler lifespan.
- Nano 3 Hub offers Wi-Fi connectivity with a dual-core processor for efficient performance and easy integration of Hive devices.
- HIVE Plus plan includes a 50% discount for added savings upon purchase.
- Supports up to 6 customizable daily heating and hot water schedules.
- Allows heating and hot water boost for a maximum of six hours as needed.
- Automatic frost protection feature prevents frozen pipes during cold weather.
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- OpenTherm technology optimizes heating efficiency by precisely managing heat requirements, resulting in up to 12% reduced gas consumption and enhancing boiler lifespan.
- Nano 3 Hub offers Wi-Fi connectivity with a dual-core processor for efficient performance and easy integration of Hive devices.
- HIVE Plus plan includes a 50% discount for added savings upon purchase.
- Supports up to 6 customizable daily heating and hot water schedules.
- Allows heating and hot water boost for a maximum of six hours as needed.
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#5
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- Compatible with most boiler and underfloor heating systems, controllable via the Refoss app or voice commands using Siri, Alexa, or Google Home; requires 2.4GHz WiFi only.
- Includes open window detection to conserve energy; automatically shuts off for 30 minutes when a window is detected open and sends app notifications.
- Features internal and optional external sensors for precise temperature control (5-35°C range, 0.1°C accuracy); switchable between sensors to prevent overheating.
- Supports scheduling with up to 8 events daily for different rooms; integrates with multiple Alexa devices to customize heating per room based on user presence.
- Offers a summer mode for cooling if compatible with air-to-air heat pumps; requires latest app version for full functionality.
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- Compatible with most boiler and underfloor heating systems, controllable via the Refoss app or voice commands using Siri, Alexa, or Google Home; requires 2.4GHz WiFi only.
- Includes open window detection to conserve energy; automatically shuts off for 30 minutes when a window is detected open and sends app notifications.
- Features internal and optional external sensors for precise temperature control (5-35°C range, 0.1°C accuracy); switchable between sensors to prevent overheating.
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#6
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- Flexible 5+2 programming for customized heating schedules on weekdays and weekends
- Integrates with the Matter protocol for compatibility across various smart home systems
- Compatible with Apple HomeKit, Amazon Alexa, and Google Home for unified control
- Allows temperature adjustments through voice commands with multiple voice assistants
- Designed for precise control of gas boiler and combi boiler floor heating systems
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- Flexible 5+2 programming for customized heating schedules on weekdays and weekends
- Integrates with the Matter protocol for compatibility across various smart home systems
- Compatible with Apple HomeKit, Amazon Alexa, and Google Home for unified control
- Allows temperature adjustments through voice commands with multiple voice assistants
- Designed for precise control of gas boiler and combi boiler floor heating systems
#7
9% Off
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- Includes 50% discount on the annual Hive Heating plan with purchase
- Compact design with a mirrored surface and user-friendly display
- Easily adjust temperature via the thermostat or Hive app; set schedules and activate Holiday mode
- Geolocation reminders assist in energy-saving by turning off heating when leaving home
- Automatic frost protection activates heating if indoor temperature drops below 7°C
- Requires Hive Hub for remote and app-based control of heating
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- Includes 50% discount on the annual Hive Heating plan with purchase
- Compact design with a mirrored surface and user-friendly display
- Easily adjust temperature via the thermostat or Hive app; set schedules and activate Holiday mode
- Geolocation reminders assist in energy-saving by turning off heating when leaving home
- Automatic frost protection activates heating if indoor temperature drops below 7°C
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#8
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- Supports programmable heating schedules for personalized temperature control.
- Includes features like Wi-Fi connectivity, manual mode, power-off memory, antifreeze mode, temperature compensation, child lock, and factory reset.
- Allows remote control via Tuya app for efficient thermostat management, including settings for temperature and time.
- Equipped with a dual-color LCD touch screen for easy operation.
- Package includes a wall-hung thermostat compatible with AC100-240V and installation screws, along with a detailed user manual.
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- Supports programmable heating schedules for personalized temperature control.
- Includes features like Wi-Fi connectivity, manual mode, power-off memory, antifreeze mode, temperature compensation, child lock, and factory reset.
- Allows remote control via Tuya app for efficient thermostat management, including settings for temperature and time.
- Equipped with a dual-color LCD touch screen for easy operation.
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#9
19% Off
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- Auto, manual, override, and off settings for flexible control
- Energy-saving features including optimum start/stop, delayed start, and selectable TPI
- Large LCD display with blue backlight for easy reading
- Supports 7-day, 5/2, or 24-hour programming options
- Allows selection of 4 or 6 time and temperature events
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- Auto, manual, override, and off settings for flexible control
- Energy-saving features including optimum start/stop, delayed start, and selectable TPI
- Large LCD display with blue backlight for easy reading
- Supports 7-day, 5/2, or 24-hour programming options
- Allows selection of 4 or 6 time and temperature events
#10
4% Off
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- Wi-Fi and radio frequency programmable room thermostat with touch-screen controls.
- Adjustable temperature settings with four timed periods in a 24-hour cycle.
- Wall-mounted receiver with auto-recognition for open therm connections.
- Compatible with iOS and Android smartphone app for remote control.
- Open therm output and volt-free switching for combination boilers.
- Large backlit display for easy visibility and manual adjustments.
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- Wi-Fi and radio frequency programmable room thermostat with touch-screen controls.
- Adjustable temperature settings with four timed periods in a 24-hour cycle.
- Wall-mounted receiver with auto-recognition for open therm connections.
- Compatible with iOS and Android smartphone app for remote control.
- Open therm output and volt-free switching for combination boilers.
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