Best Central Heating Programmer And Thermostat of 2025

Last updated on 12/12/2025

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Honeywell ST9400C Programmer. 7, 2-Channel, 3 on/Off per Day, 24 V, White - Bulk Package

Honeywell ST9400C Programmer. 7, 2-Channel, 3 on/Off per Day, 24 V, White - Bulk Package

Effortless time adjustment.
Sleek, large display.
Smart LoT integration.

Main Highlights

Now with LoT Technology
Our Largest ever Backlight Display
Factory set Clock
Automatic Summer/Winter time change
7 Day or 5/2 Day operation
Product may comes in white box or plastic package

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Honeywell ST9400C Programmer. 7, 2-Channel, 3 on/Off per Day, 24 V, White - Bulk Package

Effortless time adjustment.
Sleek, large display.
Smart LoT integration.

Main Highlights

Now with LoT Technology
Our Largest ever Backlight Display
Factory set Clock
Automatic Summer/Winter time change
7 Day or 5/2 Day operation
Product may comes in white box or plastic package

Value for Money

Plumbhub-Wireless Programmable Thermostat Replacement for CM927 CM921 CM727 CM721 CMS927B1049 with Relay Box Central Heating Programmer - White

Plumbhub-Wireless Programmable Thermostat Replacement for CM927 CM921 CM727 CM721 CMS927B1049 with Relay Box Central Heating Programmer - White

Plumbhub Plumbing and Heating Supplies

Programmable for energy savings.
Easy and intuitive controls.
Accurate whole-home temperature.

Main Highlights

Programmable Thermostat: This digital thermostat allows you to set your desired temperature and schedule for optimal comfort and energy savings.
Easy Operation: The intuitive controls and clear display make it simple to adjust the temperature or program settings.
Wireless Remote Sensor: The included wireless sensor detects the temperature in another room for more accurate whole-home heating or cooling.
Replacement unit for the older versions of CM721 CMS721 CM727 CMS727 CMS727E1016 CM927 CM921 CMS927 CMS927B1049 Wireless Room Thermostat & Receiver
Energy Efficient: By programming the thermostat to your schedule, you can reduce energy consumption and lower utility bills.

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Plumbhub Plumbing and Heating Supplies

Plumbhub-Wireless Programmable Thermostat Replacement for CM927 CM921 CM727 CM721 CMS927B1049 with Relay Box Central Heating Programmer - White

Programmable for energy savings.
Easy and intuitive controls.
Accurate whole-home temperature.

Main Highlights

Programmable Thermostat: This digital thermostat allows you to set your desired temperature and schedule for optimal comfort and energy savings.
Easy Operation: The intuitive controls and clear display make it simple to adjust the temperature or program settings.
Wireless Remote Sensor: The included wireless sensor detects the temperature in another room for more accurate whole-home heating or cooling.
Replacement unit for the older versions of CM721 CMS721 CM727 CMS727 CMS727E1016 CM927 CM921 CMS927 CMS927B1049 Wireless Room Thermostat & Receiver
Energy Efficient: By programming the thermostat to your schedule, you can reduce energy consumption and lower utility bills.

7-Day 2 Channel Central Heating & Hot Water Programmer Timer Replacement for Honeywell ST9400C – Dual Channel Wired Boiler Controller and Heating Timer

7-Day 2 Channel Central Heating & Hot Water Programmer Timer Replacement for Honeywell ST9400C – Dual Channel Wired Boiler Controller and Heating Timer

Compatible with various Honeywell systems.
Flexible dual channel scheduling options.
User-friendly display and controls.

Main Highlights

Compatible With Multiple Honeywell Programmers - Works with systems using Honeywell ST9400C, ST699, ST799 and ST7100 wiring layouts, making it a suitable alternative boiler programmer for central heating and hot water control.
Independent Heating and Hot Water Scheduling - Dual channel design allows separate on/off times for heating and hot water, providing flexibility for different household usage patterns compared to single-channel timers.
7-Day Programmable Heating Timer - Supports fully programmable daily or weekly schedules with up to three on/off periods per day, allowing precise control of boiler operation and reducing unnecessary energy use.
Clear Display and Simple User Interface - Large, easy-read LCD and intuitive control buttons make adjusting heating schedules, reviewing settings, and making quick changes straightforward for homeowners or installers.
Wired Central Heating and Boiler System Compatibility - Suitable for most wired boilers and central heating systems requiring a programmable timer or heating controller, including combi, system and heat-only boiler setups.

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7-Day 2 Channel Central Heating & Hot Water Programmer Timer Replacement for Honeywell ST9400C – Dual Channel Wired Boiler Controller and Heating Timer

Compatible with various Honeywell systems.
Flexible dual channel scheduling options.
User-friendly display and controls.

Main Highlights

Compatible With Multiple Honeywell Programmers - Works with systems using Honeywell ST9400C, ST699, ST799 and ST7100 wiring layouts, making it a suitable alternative boiler programmer for central heating and hot water control.
Independent Heating and Hot Water Scheduling - Dual channel design allows separate on/off times for heating and hot water, providing flexibility for different household usage patterns compared to single-channel timers.
7-Day Programmable Heating Timer - Supports fully programmable daily or weekly schedules with up to three on/off periods per day, allowing precise control of boiler operation and reducing unnecessary energy use.
Clear Display and Simple User Interface - Large, easy-read LCD and intuitive control buttons make adjusting heating schedules, reviewing settings, and making quick changes straightforward for homeowners or installers.
Wired Central Heating and Boiler System Compatibility - Suitable for most wired boilers and central heating systems requiring a programmable timer or heating controller, including combi, system and heat-only boiler setups.

LavaTap Pro Honeywell Wireless Programmable Thermostat CM927 CM921 CM727 Replacement Central Heating Programmer Boiler Plus Compliant, White, Standard

LavaTap Pro Honeywell Wireless Programmable Thermostat CM927 CM921 CM727 Replacement Central Heating Programmer Boiler Plus Compliant, White, Standard

Seamless replacement for various models.
Maintains program after battery removal.
Features intelligent heating control.

Main Highlights

Made and supported by Honeywell (Resideo)
Easy replacement for Honeywell CM927 CM921 CM727 CMS727 CMT727 CMS921 CMS927
Pre-bound for wireless communication or can be bound to Honeywell BDR91 relay box - Video instructions included via QR code
Replacement unit for the older versions of CM721 CMS721 CM727 CMS727 CMS727E1016 CM927 CM921 CMS927 CMS927B1049 Wireless Room Thermostat & Receiver Replacement unit for the older versions of CM721 CMS721 CM727 CMS727 CMS727E1016 CM927 CM921 CMS927 CMS927B1049 Wireless Room Thermostat & Receiver
Built-in memory retains user program – even following battery removal
7 day programmer / 4 time schedules per day / Intelligent heating control / Boiler Plus compliant to meet current Part L building regulations
Comes with wireless programmable thermostat, relay box, table stand, AA batteries and instructions
Mounting type: Wall Mount
Item shape: Rectangular
Control type: Button Control

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LavaTap Pro Honeywell Wireless Programmable Thermostat CM927 CM921 CM727 Replacement Central Heating Programmer Boiler Plus Compliant, White, Standard

Seamless replacement for various models.
Maintains program after battery removal.
Features intelligent heating control.

Main Highlights

Made and supported by Honeywell (Resideo)
Easy replacement for Honeywell CM927 CM921 CM727 CMS727 CMT727 CMS921 CMS927
Pre-bound for wireless communication or can be bound to Honeywell BDR91 relay box - Video instructions included via QR code
Replacement unit for the older versions of CM721 CMS721 CM727 CMS727 CMS727E1016 CM927 CM921 CMS927 CMS927B1049 Wireless Room Thermostat & Receiver Replacement unit for the older versions of CM721 CMS721 CM727 CMS727 CMS727E1016 CM927 CM921 CMS927 CMS927B1049 Wireless Room Thermostat & Receiver
Built-in memory retains user program – even following battery removal
7 day programmer / 4 time schedules per day / Intelligent heating control / Boiler Plus compliant to meet current Part L building regulations
Comes with wireless programmable thermostat, relay box, table stand, AA batteries and instructions
Mounting type: Wall Mount
Item shape: Rectangular
Control type: Button Control

LavaTap Pro Controls 7 Day 2 Channel Heating Programmer Direct Replacement for Honeywell ST9400C Heating Hot Water Control Compatible with Honeywell ST699 ST799 ST7100, White

LavaTap Pro Controls 7 Day 2 Channel Heating Programmer Direct Replacement for Honeywell ST9400C Heating Hot Water Control Compatible with Honeywell ST699 ST799 ST7100, White

Easy installation and replacement.
Flexible programming options available.
Reliable Honeywell support provided.

Main Highlights

Direct replacement for Honeywell ST9400C without changing cables simply clip onto the ST9400C back plate
Can also replace Honeywell ST699 ST799 ST7100 ST6200 ST6300 ST6400 with easy wiring change on the back panel
7 day 2 channel programmer for heating and hot water with 3 on/off periods per day
Manufactured and supported by Honeywell direct phone technical support
Factory pre-programmed scheduling options with 3 independent heating and hot water periods per day and 7 days of programming including holiday, party and boost mode

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LavaTap Pro Controls 7 Day 2 Channel Heating Programmer Direct Replacement for Honeywell ST9400C Heating Hot Water Control Compatible with Honeywell ST699 ST799 ST7100, White

Easy installation and replacement.
Flexible programming options available.
Reliable Honeywell support provided.

Main Highlights

Direct replacement for Honeywell ST9400C without changing cables simply clip onto the ST9400C back plate
Can also replace Honeywell ST699 ST799 ST7100 ST6200 ST6300 ST6400 with easy wiring change on the back panel
7 day 2 channel programmer for heating and hot water with 3 on/off periods per day
Manufactured and supported by Honeywell direct phone technical support
Factory pre-programmed scheduling options with 3 independent heating and hot water periods per day and 7 days of programming including holiday, party and boost mode

Drayton 25476 LP722 (Mk4) 2 Channel Programmer, White

Drayton 25476 LP722 (Mk4) 2 Channel Programmer, White

Convenient separate settings for appliances.
Memory saver for uninterrupted operation.
Backlit screen enhances readability.

Main Highlights

2 channel 7 day programmer (separate timings for heating & hot water)
Memory saver - program and clock never need resetting in the event of loss of power
Easy to read, backlit screen
Automatic summer/winter time change
Boost, giving 1, 2 or 3 hours with LCD indication
2 channel 7 day programmer (separate timings for heating & hot water)
Memory saver - program and clock never need resetting in the event of loss of power
Easy to read, backlit screen. Automatic summer/winter time change
Boost, giving 1, 2 or 3 hours with LCD indication
Suitable for fully pumped or gravity hot water systems

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Drayton 25476 LP722 (Mk4) 2 Channel Programmer, White

Convenient separate settings for appliances.
Memory saver for uninterrupted operation.
Backlit screen enhances readability.

Main Highlights

2 channel 7 day programmer (separate timings for heating & hot water)
Memory saver - program and clock never need resetting in the event of loss of power
Easy to read, backlit screen
Automatic summer/winter time change
Boost, giving 1, 2 or 3 hours with LCD indication
2 channel 7 day programmer (separate timings for heating & hot water)
Memory saver - program and clock never need resetting in the event of loss of power
Easy to read, backlit screen. Automatic summer/winter time change
Boost, giving 1, 2 or 3 hours with LCD indication
Suitable for fully pumped or gravity hot water systems

Adept-Honeywell Wireless Programmable Thermostat Replacement for CM927 CM921 CM727 CM721 CMS927B1049 with Relay Box Central Heating Programmer - White

Adept-Honeywell Wireless Programmable Thermostat Replacement for CM927 CM921 CM727 CM721 CMS927B1049 with Relay Box Central Heating Programmer - White

Adept Technology

Offers seamless thermostat transition.
Enhanced user-friendly interface.
Promotes energy and cost savings.

Main Highlights

The Adept Wireless Programmable Thermostat, a state-of-the-art replacement unit for the Honeywell CM927, CMS927, and CMS927B1049 Wireless Room Thermostats. Designed with the latest technology, this thermostat offers a seamless transition from your existing Honeywell CM Series Wireless Thermostats, ensuring consistent temperature regulation and enhanced user experience.
7-Day Programmability: Customize your heating schedule for every day of the week, ensuring optimal comfort and energy efficiency.
Compatibility: Directly replaces a range of Honeywell CM Series products, including CM921, CMS921, CMS921B1042, CM927, CMS927, CMS927B1049, CM727, CMS727, CMS727E1016, and CM721.
Advanced RF Protocol: Utilizes the 868MHz 'Ramses 2' RF protocol for reliable communication and performance.
User-Friendly Interface: While it mirrors the user display menu of Honeywell Home's T3 Series Thermostat, it offers unique features like the absence of the +1hr function and flame icon during heating demand.

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Adept Technology

Adept-Honeywell Wireless Programmable Thermostat Replacement for CM927 CM921 CM727 CM721 CMS927B1049 with Relay Box Central Heating Programmer - White

Offers seamless thermostat transition.
Enhanced user-friendly interface.
Promotes energy and cost savings.

Main Highlights

The Adept Wireless Programmable Thermostat, a state-of-the-art replacement unit for the Honeywell CM927, CMS927, and CMS927B1049 Wireless Room Thermostats. Designed with the latest technology, this thermostat offers a seamless transition from your existing Honeywell CM Series Wireless Thermostats, ensuring consistent temperature regulation and enhanced user experience.
7-Day Programmability: Customize your heating schedule for every day of the week, ensuring optimal comfort and energy efficiency.
Compatibility: Directly replaces a range of Honeywell CM Series products, including CM921, CMS921, CMS921B1042, CM927, CMS927, CMS927B1049, CM727, CMS727, CMS727E1016, and CM721.
Advanced RF Protocol: Utilizes the 868MHz 'Ramses 2' RF protocol for reliable communication and performance.
User-Friendly Interface: While it mirrors the user display menu of Honeywell Home's T3 Series Thermostat, it offers unique features like the absence of the +1hr function and flame icon during heating demand.

Center RF Wireless 7-Day 5/2 Day Programmable Room Thermostat White - Boiler Plus Compliant - Minimalistic and Modern design - Battery powered

Center RF Wireless 7-Day 5/2 Day Programmable Room Thermostat White - Boiler Plus Compliant - Minimalistic and Modern design - Battery powered

Minimalistic and modern design.
Ultimate installation flexibility included.
Maximises energy savings effortlessly.

Main Highlights

Minimalistic and modern design - discreetly blends-in to any type of home.Boiler Plus Compliant.Adaptive control function – accurately and efficiently helps maintain the required temperature setting.Optimum start & stop technology – drastically increases the efficiency of your heating system.Factory pre-bound to the RF receiver unit – allows for simple, fuss-free installation
Wall-mounting backplate and table stand included allows for the ultimate installation flexibility.Large back-lit LCD display with time and temperature makes it easy to read current and desired temperature setting.Simple and ergonomic user interface with only 5 buttons – makes it very easy to use and setup heating programmes
7-day & 5/2 day heating program to match your lifestyle, whilst maximising energy savings.Choice of up to 4 independent temperature periods per day with a copy function
Battery powered (with low-power indicator).'Active’/‘In use’ confirmation makes it easy to identify if the heating is on or off
24-hr and 12-hr clock display format option.Built-in memory holds the user program indefinitely. ErP: Class IV (+2%), (EU) 811/2013

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Center RF Wireless 7-Day 5/2 Day Programmable Room Thermostat White - Boiler Plus Compliant - Minimalistic and Modern design - Battery powered

Minimalistic and modern design.
Ultimate installation flexibility included.
Maximises energy savings effortlessly.

Main Highlights

Minimalistic and modern design - discreetly blends-in to any type of home.Boiler Plus Compliant.Adaptive control function – accurately and efficiently helps maintain the required temperature setting.Optimum start & stop technology – drastically increases the efficiency of your heating system.Factory pre-bound to the RF receiver unit – allows for simple, fuss-free installation
Wall-mounting backplate and table stand included allows for the ultimate installation flexibility.Large back-lit LCD display with time and temperature makes it easy to read current and desired temperature setting.Simple and ergonomic user interface with only 5 buttons – makes it very easy to use and setup heating programmes
7-day & 5/2 day heating program to match your lifestyle, whilst maximising energy savings.Choice of up to 4 independent temperature periods per day with a copy function
Battery powered (with low-power indicator).'Active’/‘In use’ confirmation makes it easy to identify if the heating is on or off
24-hr and 12-hr clock display format option.Built-in memory holds the user program indefinitely. ErP: Class IV (+2%), (EU) 811/2013

Drayton 123070 LP522 (Mk4) 2 Channel Programmer, White

Drayton 123070 LP522 (Mk4) 2 Channel Programmer, White

Effortless seasonal time adjustments.
Clear, backlit display screen.
Flexible switching options provided.

Main Highlights

Automatic summer/winter time change
Easy to read, backlit screen
On/once/timed/off switching options
Programme advance buttons, with LCD indication
Boost, giving 1, 2 or 3 hours with LCD Indication

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Drayton 123070 LP522 (Mk4) 2 Channel Programmer, White

Effortless seasonal time adjustments.
Clear, backlit display screen.
Flexible switching options provided.

Main Highlights

Automatic summer/winter time change
Easy to read, backlit screen
On/once/timed/off switching options
Programme advance buttons, with LCD indication
Boost, giving 1, 2 or 3 hours with LCD Indication

LavaTap Pro Honeywell Wired Programmable Thermostat CM907 CM901 CM707 CM701 Replacement Central Heating 7 Day Programmer Boiler Plus Compliant

LavaTap Pro Honeywell Wired Programmable Thermostat CM907 CM901 CM707 CM701 Replacement Central Heating 7 Day Programmer Boiler Plus Compliant

Simple replacement for Honeywell thermostats.
Powered by AA batteries.
Dedicated Honeywell technical support.

Main Highlights

Easy replacement for Honeywell CM907 CM901 CM707 CM701 Thermostats
Hardwired to boiler and powered by 2 x AA batteries
Made and supported by Honeywell (Resideo) with dedicated technical support number
Uses Honeywell ABC wiring terminal labelling for simple replacement
7 day programmer / 4 time schedules per day / Intelligent heating control / Boiler Plus compliant to meet current Part L building regulations

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LavaTap Pro Honeywell Wired Programmable Thermostat CM907 CM901 CM707 CM701 Replacement Central Heating 7 Day Programmer Boiler Plus Compliant

Simple replacement for Honeywell thermostats.
Powered by AA batteries.
Dedicated Honeywell technical support.

Main Highlights

Easy replacement for Honeywell CM907 CM901 CM707 CM701 Thermostats
Hardwired to boiler and powered by 2 x AA batteries
Made and supported by Honeywell (Resideo) with dedicated technical support number
Uses Honeywell ABC wiring terminal labelling for simple replacement
7 day programmer / 4 time schedules per day / Intelligent heating control / Boiler Plus compliant to meet current Part L building regulations

We scanned 812 products

We reviewed these offers relevant to the Central Heating Programmer And Thermostat 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 Honeywell, Plumbhub Plumbing and Heating Supplies, Hulthor, LavaTap, Drayton, Adept Technology, CENTER, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Central Heating Programmer And Thermostat in the market, we considered we took a deep dive into 4061 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 Honeywell ST9400C Programmer. 7, 2-Channel, 3 on/Off per Day, 24 V, White - Bulk Package. We love many things about this product by Honeywell. What sets it apart from the competition is Effortless time adjustment, Sleek, large display, Smart LoT integration.
The best value product for most shoppers and where user satisfaction is continuously the highest is Plumbhub-Wireless Programmable Thermostat Replacement for CM927 CM921 CM727 CM721 CMS927B1049 with Relay Box Central Heating Programmer - White by Plumbhub Plumbing and Heating Supplies based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Central Heating Programmer And Thermostat and the best cost-to-value ratio is LavaTap Pro Honeywell Wired Programmable Thermostat CM907 CM901 CM707 CM701 Replacement Central Heating 7 Day Programmer Boiler Plus Compliantat LavaTap with a % discount.
Our list of the best Central Heating Programmer And Thermostat 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.