10 Best 2 Wire Smart Thermostat in the UK 2025
Updated on 09/08/2025
#1
Recommended
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- Wireless thermostat for easy installation and usage
- Compatible with boiler and hot water control
- Can be controlled via mobile app and smart speakers
- Compatible with Alexa, Siri, and Google Assistant
- Includes Stand and Bridge X in the Starter Kit
- Not compatible with tado° V3+
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- Wireless thermostat for easy installation and usage
- Compatible with boiler and hot water control
- Can be controlled via mobile app and smart speakers
- Compatible with Alexa, Siri, and Google Assistant
- Includes Stand and Bridge X in the Starter Kit
- Not compatible with tado° V3+
#2
Value for Money
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- Expand your tado° system with wired smart thermostats for efficient control of your boiler or underfloor heating.
- Manage multiple rooms independently and set schedules tailored to your routine for enhanced comfort.
- Compatible with most heating systems; easily replace existing wired thermostats for central or underfloor heating control.
- Simple installation process via the tado° app, no professional expertise needed.
- Includes features like Geofencing, Weather Adaptation, and energy reports.
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- Expand your tado° system with wired smart thermostats for efficient control of your boiler or underfloor heating.
- Manage multiple rooms independently and set schedules tailored to your routine for enhanced comfort.
- Compatible with most heating systems; easily replace existing wired thermostats for central or underfloor heating control.
- Simple installation process via the tado° app, no professional expertise needed.
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#3
15% Off
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- WiFi-enabled thermostat compatible with various heating systems, controllable via the 'Refoss' app or voice commands with Apple HomeKit, Alexa, and Google Home; supports 2.4GHz WiFi with no hub requirement.
- Features open window detection to conserve energy by automatically pausing heating for 30 minutes when an open window is detected; provides notifications through the app.
- Equipped with dual temperature sensors for accurate heating control: an internal sensor for air temperature and an external sensor (wired) for floor temperature; temperature control range of 5-35°C with 0.1°C accuracy.
- Allows for customizable scheduling with support for up to 8 events daily; enables multi-room control for efficient heating management based on your presence and schedule.
- Includes a summer mode function for cooling compatibility with systems such as air-to-air heat pumps; requires latest app version for certain features.
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- WiFi-enabled thermostat compatible with various heating systems, controllable via the 'Refoss' app or voice commands with Apple HomeKit, Alexa, and Google Home; supports 2.4GHz WiFi with no hub requirement.
- Features open window detection to conserve energy by automatically pausing heating for 30 minutes when an open window is detected; provides notifications through the app.
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#4
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- WiFi-enabled flush mount thermostat designed for electric underfloor heating, fully functional without Wi-Fi; requires Neutral and Live wires for installation.
- Control your underfloor heating remotely via the Smart Life/Tuya App, allowing for temperature adjustments, scheduling, and device sharing; compatible with 2.4GHz WiFi.
- Compatible with voice assistants like Alexa and Google Assistant for hands-free temperature control through simple voice commands.
- Features various scheduling options with manual, program, and holiday modes, allowing for 5/2, 6/1, and 7/0 day settings to optimize energy efficiency.
- Includes open window detection to suspend heating when a rapid temperature drop is detected; additional features include temperature calibration, child lock, and power-off data saving; package includes thermostat, screws, external temperature probe, and manual.
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- WiFi-enabled flush mount thermostat designed for electric underfloor heating, fully functional without Wi-Fi; requires Neutral and Live wires for installation.
- Control your underfloor heating remotely via the Smart Life/Tuya App, allowing for temperature adjustments, scheduling, and device sharing; compatible with 2.4GHz WiFi.
- Compatible with voice assistants like Alexa and Google Assistant for hands-free temperature control through simple voice commands.
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#5
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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
#6
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- Smart heating technology designed in Germany for energy efficiency and cost savings.
- Reliable climate control, compatible with popular smart speakers including Alexa, Siri, and Google.
- Control heating via smartphone with features like Open Window Detection and Smart Schedules.
- Geofencing technology allows preheating your home based on your location.
- Replaces existing thermostats compatible with various boiler manufacturers and hydronic underfloor heating systems.
- Step-by-step installation guidance via the app tailored to your specific system.
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- Smart heating technology designed in Germany for energy efficiency and cost savings.
- Reliable climate control, compatible with popular smart speakers including Alexa, Siri, and Google.
- Control heating via smartphone with features like Open Window Detection and Smart Schedules.
- Geofencing technology allows preheating your home based on your location.
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#7
5% Off
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- User-friendly touch-screen interface for easy temperature control and scheduling.
- Remote access via the Honeywell Home app for managing heating and schedules.
- Utilizes smartphone location features to adjust temperature based on home occupancy.
- Flexible scheduling options including daily, weekly, and multiple time settings.
- Compatible with Apple HomeKit for control through Apple devices.
- Works with Google Home and IFTTT for enhanced automation.
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- User-friendly touch-screen interface for easy temperature control and scheduling.
- Remote access via the Honeywell Home app for managing heating and schedules.
- Utilizes smartphone location features to adjust temperature based on home occupancy.
- Flexible scheduling options including daily, weekly, and multiple time settings.
- Compatible with Apple HomeKit for control through Apple devices.
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#8
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- Smart thermostat compatible with boilers and water heaters, controllable via the "Tuya" app for real-time temperature adjustments from anywhere.
- Features a 5 + 1 + 1 programmable schedule for optimizing heating based on your daily routine, enhancing comfort while saving energy.
- Compatible with voice control through Google Home and Alexa, allowing hands-free adjustments of the thermostat's settings and temperature.
- Adjustable temperature range from 5 to 35 °C with a clear LCD display, offering multiple functions including manual mode, temperature calibration, and protection features.
- Customer satisfaction guarantee with a 30-day money-back option; direct support available for any product-related inquiries.
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- Smart thermostat compatible with boilers and water heaters, controllable via the "Tuya" app for real-time temperature adjustments from anywhere.
- Features a 5 + 1 + 1 programmable schedule for optimizing heating based on your daily routine, enhancing comfort while saving energy.
- Compatible with voice control through Google Home and Alexa, allowing hands-free adjustments of the thermostat's settings and temperature.
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#9
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- Smart in-wall unit for precise temperature control of wired and underfloor heating systems.
- LED display shows current room temperature, heating status, and humidity levels.
- Adjustable via rotary/push knob, app remote control, or voice commands through Amazon Alexa and Google Assistant.
- Customizable heating schedules with adjustable breaks for individual room temperature management.
- Requires Bosch smart home controller for system integration.
- Includes room thermostat, in-wall housing, wire bridge, and multilingual quick start guide.
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- Smart in-wall unit for precise temperature control of wired and underfloor heating systems.
- LED display shows current room temperature, heating status, and humidity levels.
- Adjustable via rotary/push knob, app remote control, or voice commands through Amazon Alexa and Google Assistant.
- Customizable heating schedules with adjustable breaks for individual room temperature management.
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#10
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- Control heating, cooling and IAQ equipment with only 2 wires at the thermostat
- Smart Schedule - programs in seconds for any lifestyle
- Red LINK wireless communication
- Precise temperature control (+/- 1 Degrees Fahrenheit ) for reliable and consistent temperature
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- Control heating, cooling and IAQ equipment with only 2 wires at the thermostat
- Smart Schedule - programs in seconds for any lifestyle
- Red LINK wireless communication
- Precise temperature control (+/- 1 Degrees Fahrenheit ) for reliable and consistent temperature
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