10 Best Hot Water Tank Timer Switch in The UK

Last updated on 22/07/2025

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Best Choice

9.8

Exceptional

Save 9%

Vaillant

Vaillant timeSWITCH 150, Plastic, White

9% OffFree Shipping

Why We Love It

Simple and easy to use.
Larger analogue clock display.
Complete flexible time control.

Main Highlights

Simple, easy to use 24 hour mechanical timer.
Traditional familiar mechanical timer with a larger analogue clock display for easy setting of your time programs.
Flexible programming with the ability to set up to 48 heating on/off times
Time periods as short as 15 minutes to give complete and flexible control of your time programs.

Timeguard NTT03 24-Hour/7-Day Compact Electronic Immersion Heater Timeswitch,White

Why We Love It

Convenient easy-set program periods.
User-friendly extra large screen.
Clear LED indicators display status.

Main Highlights

4 on/4 off easy-set programme periods per day, 28 on/28 off programmes per week
Extra large 'easy view' Screen with blue LED backlighting
Red LED 'mains on' And green LED 'output' Indicators for easy viewing
16(4)A load rating

Secure E7+ Smart Immersion Heater Timer Control Bluetooth Replacement for Horstmann Electronic 7 Economy 7 Quartz

12% Off

Why We Love It

Bluetooth-enabled for smart control.
Retrofitting is effortlessly easy.
Unmatched 7-year warranty.

Main Highlights

Suitable for use with single, dual, or twin element immersion heaters
Bluetooth-enabled app for local control (Android and IOS) - Full smart control from anywhere with optional Wi-Fi adaptor that does not need a hub or gateway
Easy to retrofit using the provided adaptor plate and fully interchangeable with all Horstmann/Secure Economy 7 and Electronic 7 controllers
Measures estimated energy consumed for boost and off-peak in kWh via the app
Includes 7-day programmer with 3 On Offs straight from the device, more can be added via the app
Programmable boost - can be programmed so that it will heat only a small part of your tank at a set time each day
Manual Boost button - ideal for 30 minutes, 1, or 2-hour top-up without changing the set program
7 years no quibble warranty

LANBON L8-HB LCD 20A Heater Timer Smart Switch Work with Homekit/Smart Life APP & Alexa/Google Home,24 Hour Immersion Heater Segment Timer Switch for Storage/Immersion Water Heater/Electric Boiler

10% OffFree Shipping

Why We Love It

High-power for efficient heating.
Smart home integration available.
Voice control with convenience features.

Main Highlights

20A high-power design, the water heater timer switch is suitable for most Electric Boilers & Storage/Immersion Water Heater
[Integrated 3 systems]: The smart timer switch has integrated Apple HomeKit, Tuya Smart Life and Smart Living systems, which are largely compatible with your existing home system.
L8-HB Timer Smart Switch works with Alexa and Google Assistant. Just use simple commands to control it. Also, the switch support APP remote control.
L8-HB Timer Switches Equipped with the power statistics function, it will let you know the monthly power consumption of the boiler clearly.
The Smart Timers have 4 groups of time, even if multiple people use it, it will still be organized. Immersion heater timer with auto-off function, you can set the maximum working time allowed for a device to ensure safety.
The 4 power buttons correspond to 4 different power on durations to adapt to your different needs. The LCD screen has a countdown indication and will automatically turn off when the time comes, which is safe and convenient.
[Tips] 2.4g wifi connection is required, use Apple Home / Tuya Smart Life / LANBON Smart Living APP, NO Hub required

Timeguard FST24 24 Hour Fused Spur Timeswitch Storage/Immersion Heater

8% OffFree Shipping

Why We Love It

Reliable time management solution.
High-quality manufacturing.
Model offers precision.

Main Highlights

Manufacturer name: time guard
Model No: BPSCA FST24 - PL14941

Digital Timer Switch Fused Spur Wall Controller For Electric Towel Rail Radiators Timeswitch

Why We Love It

Perfect for diverse heater types.
Replaces single gang outlets conveniently.
Enhances control with 7-day timer.

Main Highlights

Companyblue Digital Fused Spur Timer Wall Controller For Electric Towel Rail Radiators
Ideal for immersion heaters, room heaters, towel rails and lighting
Replaces existing single gang connection unit or fixed appliance outlets. box min. 25mm deep.
7 Day fused spur timer - Suitable for Single Heat, GT or MEG elements

HOZELOCK - Watering Timer Select Controller : Automatic Watering, Easy To Use, 16 Pre-installed Programs, 2 to 60min Watering up to 4 Times A Day, Manual Watering Function [2220 1240]

Free Shipping

Why We Love It

Easy and adjustable setup options.
Manual watering for convenience.
Low battery LED notifier.

Main Highlights

Easy to set up and adjust – the controller has 6 fixed daily watering options available and an additional 10 fixed programmes
Separate manual watering button – a quick and simple way to allow immediate watering
Limited rotation of dial – the dial is designed to prevent an accidental start time being selected
Led light – The LED light displays when the battery is low
Compatible with water butt tanks – the select controller Works at a pressure as low as 0.1 bar
Design may vary

CHOSRY WiFi Fused Spur Timer Switch for electric towel rails, heating, and lighting (if showing as unavailable, please visit our store at chosry dot com)

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Why We Love It

"Programmable from anywhere worldwide. Compatible with many heaters. Includes a countdown timer."

Main Highlights

PROGRAMMABLE: Simple to programme using the Tuya Smart app, Smart Life app, Alexa, or Google Assistant, giving you access to control your installation anywhere in the world
HEATING: Suitable for the majority of electric heaters up to 3KW including immersion heaters, water heaters, panel heaters, electric towel rails, convector heaters, storage heaters, fan heaters, overdoor heaters and many more
LIGHTING: Suitable for lighting circuits including LED lighting loads up to 150W, incandescent/halogen lighting loads up to 700W, fluorescent lighting loads up to 500W, CFL lighting loads up to 80W. Not suitable for discharge lighting. Note that the timer requires a live and neutral from the power supply and a live and neutral to the load to operate.
ONE TOUCH: The ability to switch ON and OFF with a simple touch of a button or set multiple programming times
APP FUNCTIONS: Includes a countdown timer and energy usage monitoring
OPERATING SYSTEM: Available for Android and iOS only. Works with WiFi and 4G/5G
CERTIFICATION: CE, UKCA (UK Conformity Assessed)
CONTENTS: WiFi timer switch, electrical socket screws, cable clamp, and installation guide
DIMENSIONS: 86mm x 86mm x 38mm
TECHNICAL ASSISTANCE: For help and advice on the installation and operation of any our products, please visit our website (chosry.com) where we have a selection of videos and blogs which offer step-by-step guides and troubleshooting hints and tips. You can also phone or email us with any questions you may have using the contact details provided.

Smart Immersion Heater Timer Switch, 40A 8000W WiFi Water Heater Switch with Timer, Remote Control via Smart Life APP, Compatible with Amazon Alexa & Google Assistant

Free Shipping

Why We Love It

High-Power supports various appliances.
Offers Hands-Free voice control.
Facilitates remote access and control.

Main Highlights

【40A High-Power Switch】40A WiFi smart timer switch can support up to 8000W of electrical appliances,including immersion heaters,storage heaters,boiler heaters and other heaters,high-power electrical appliances.Please note that currently this water heater timer switch only supports 2.4Ghz WiFi,but can be controlled by mobile data (2/3/4/5 G).
【Hands-Free Voice Control】Compatible with Amazon Alexa and Google Assistant, control your home appliances with the smart touch switch by simply giving voice commands to Amazon Alexa and Google Assistant.
【Remote Control & Timers】You can control your gas boiler/ water heater using APP Smart Life(for iOS/ Android) from anytime or anywhere.Use timer or countdown schedules to set your smart switch to automatically turn on and off while you're home or away.
【Easy to install】Immersion Heater Timer Switch is very easy to install.Neutral wire required/ Only support 2.4GHz WiFi/ Install without power(box not included).Note: Do not exceed the maximum power of the smart switch.
【Tempered Glass Panel】Waterproof, moistureproof, scratch-proof.Refined appearance and made of fire resistant maternal, safe and durable;Soft blue indicator shows the on/off clearly, and helps you find the position of the smart switch easily in darkness.
【Group Control】Create a group in the App to control all your WIFI switches at the same time, or set custom smart scenes to match any occasion like going home, leaving home, sleeping, etc. You can also share your smart devices to your family members.

Optimum Energy Saving Electronic Time Switch - 2 Hour Electronic Boost Timer Socket Box Mount - White, One 230 V

Free Shipping

Why We Love It

Easy and intuitive to use.
Offers various timing options.
Safe resistive output rating.

Main Highlights

EASY TO USE: Simply click the 'Boost' button to increase the ON time to a maximum of 2 hours; it also features a visual indication that gives you the duration of the boost you must pick.
RESISTIVE RATING: Allows for timed regulation of any mains electrical load with a resistive rating of up to 16 amps, to be safe and to get the most out of the Boost timer stay within the required resistive ratings.
MOUNTING: It is designed to fit onto a standard in-wall pattress box.
OUTPUT OPTIONS: It has both Timed / Delayed outputs, each with four pre-set periods. It offers timed outputs of 15 minutes, 30 minutes, 1 hour, and 2 hours.
SPECIFICATIONS: 4 wire-protect screw terminals and an earth park are used for connections. Features a T45 Temperature Rating, 16A Resistive Output Rating, IP20 Rating, and a 220 - 240V AC 50Hz power supply.

8.9

Excellent

We scanned 607 products

We reviewed these offers relevant to the Hot Water Tank Timer Switch 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 Vaillant, Timeguard, LavaTap, LANBON, Companyblue, Hozelock, CHOSRY, BritPick, Optimum, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Hot Water Tank Timer Switch in the market, we considered we took a deep dive into 3036 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 Vaillant timeSWITCH 150, Plastic, White. We love many things about this product by Vaillant. What sets it apart from the competition is Simple and easy to use. , Larger analogue clock display, Complete flexible time control.
The best value product for most shoppers and where user satisfaction is continuously the highest is Timeguard NTT03 24-Hour/7-Day Compact Electronic Immersion Heater Timeswitch,White by Timeguard based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Hot Water Tank Timer Switch and the best cost-to-value ratio is Secure E7+ Smart Immersion Heater Timer Control Bluetooth Replacement for Horstmann Electronic 7 Economy 7 Quartzat LavaTap with a 12% discount.
Our list of the best Hot Water Tank Timer Switch 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 Hot Water Tank Timer Switch in The UK

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We scanned 607 products

We concluded that: