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Guide to the UK’s best smart thermostats in 2023

Discover the top smart thermostats in the UK right now

Emma Spencer
Written by  Emma Spencer
5 min read
Updated: 07 Feb 2024

Smart thermostats give you the power to manage your heating from your phone, tablet or computer, but which one is best for you?

Which smart thermostat is best for me?

When you're in the market for a smart thermostat, compatibility should be at the top of your checklist. It's essential to ensure that the device you choose works seamlessly with any existing smart home systems you may have, particularly if you're integrated into a central system like Amazon Alexa.

Before you make a purchase, it might be worth your while to check in with your energy company. Many providers offer exclusive smart thermostat deals for their existing customers, which can lead to additional savings.

To aid you in your decision, we've compiled a list of the best smart thermostats available in the UK, highlighting their standout features. This should help you navigate through the options and select the perfect addition to your household.

For those keen on understanding more about smart thermostats, we have a comprehensive guide that explains what a smart thermostat is and how one works.

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Who are the smart thermostat providers?

The landscape of smart thermostat technology is one of rapid advancement, with new features continually emerging to offer more sophisticated remote energy control. This not only has the potential to save money but also to conserve energy.

Among the leading providers in this space are tech giants like Amazon and Google's Nest, as well as companies like Ecobee, Hive, Honeywell, and Netatmo. They all offer user-friendly systems that grant you the power to manage your home's heating from anywhere in the world.

Can I replace my old thermostat with a smart thermostat?

For those residing in the UK, the good news is that it's generally feasible to upgrade your old thermostat to a smart one. However, it's prudent to verify your home's compatibility before making a purchase. Manufacturers like Nest and Ecobee offer tools to help with this.

While installation is often straightforward and can be done using the guides provided, professional electrician services are available for those who prefer not to undertake self-installation.

What are the best smart thermostats?

The current UK market has a selection of smart thermostats that stand out for their features and reliability. Let's take a closer look at some of the best options available.

Nest Learning Thermostat

Google's Nest is a frontrunner in the smart thermostat market, offering sophisticated features like artificial intelligence that learns and adapts to your heating habits for more efficient control. The third-generation Nest Learning Thermostat, retailing at around £190, is compatible with all boiler types and even allows for hot water control. Despite being pricier than the entry-level Nest E, it offers considerable value.

The Nest's AI is particularly impressive, utilising GPS to track your location and adjusting your home's heating accordingly. This ensures your home is cosy upon your arrival and that heating is optimised to reach your desired temperature at the perfect time.

Key features include:

  • Manual control via the Nest app

  • Voice control with Amazon Alexa and Google Assistant

  • Learning your habits and adjusting heating based on your phone's location

  • Multi-zone control for up to 20 thermostats under one account

  • Hot water control through the app

  • The Nest Leaf feature, which indicates when you're saving energy

  • Sensors for temperature, humidity, and occupancy

Hive Thermostat Mini

Hive, a product of British Gas, offers smart thermostats that can help consumers save approximately £120 per year. The Hive Thermostat Mini (along with the Hive Hub) is priced under £120 and includes a receiver that's straightforward to install.

This battery-powered device, which comes with four AAA batteries, emphasises smartphone app control. Although it lacks the AI capabilities of some competitors, Hive compensates with geolocation features that remind you to turn off the heating when you leave the house.

Additional features include:

  • Multizone heating control with additional units

  • Up to six daily time slots for routine scheduling

  • Hive Heating Plus subscription for extra features at £3.99/month

  • Frost protection that kicks in at temperatures below 7ºC

  • Compatibility with Alexa, Google Assistant, and Siri through Apple HomeKit

Tado Smart Thermostat v3

Priced at around £200, the Tado Smart Thermostat v3 is versatile, working with a broad range of heating systems and offering a 12-month money-back guarantee. Whether you have a boiler, underfloor heating, heat pumps, or a zoned system, Tado has you covered.

The starter kit includes an Internet Bridge for connecting to your router, and you have the option of self-installation or professional installation for an additional £75. Tado also caters to homes with district or central heating setups with their Smart Radiator Thermostats.

Features of the Tado system include:

  • Climate Assistant with geofencing, weather adaptation, open window detection, and reports

  • Multi-room control for individual room heating

  • Advanced Auto-Assist features that turn on your heating according to your schedule (full benefits require a £3.99/month subscription)

  • Smart schedules for heating and hot water

  • App control through the Tado app

  • Healthier Air: Air Comfort Skill provides insights on indoor and outdoor air quality

Honeywell Evohome

For those seeking the ultimate in control, Honeywell's Evohome system provides individual thermostats for each radiator, allowing for unique heating schedules in each room. This premium product comes with a higher price tag but offers unparalleled flexibility.

Evohome is particularly suited for homes where occupants have different temperature preferences or where certain rooms tend to be hotter or colder than others. The system supports up to 12 'zones,' each with its own temperature settings, and is compatible with IFTTT, Google Assistant, and Amazon Alexa. The system is typically priced at around £294.99.

Evohome features include:

  • Up to 12 heating zones for tailored room temperatures

  • Smart features for temperature adjustments or weekly schedule creation

  • Flexible control options including an app, web browser, and voice assistants

  • Smart hot water control for efficient energy use

Save by switching energy suppliers

While smart thermostats are a fantastic way to reduce energy bills, they're not the only strategy. Switching energy suppliers can also lead to significant savings. Although the energy market is currently experiencing some turbulence, it's still worth exploring your options.

To receive an accurate quote, you'll need to provide details about yourself, your home, and your energy usage. Energy tariffs can be compared based on the price per month or year and the potential savings you could enjoy.

Once you've selected a deal, the supplier will take care of finalising the purchase. The switch can be fast-tracked to take as little as five working days, and thanks to the Energy Switch Guarantee, you won't experience any interruption in service.

We encourage you to compare energy prices for more information on how you can save.

Switch and save with Energy Monitor

Making the switch to a cheaper energy supplier is a breeze with MoneySuperMarket’s Energy Monitor. Our service keeps an eye on the market for you, alerting you as soon as a more affordable tariff becomes available. This way, you can switch effortlessly and enjoy the savings on your energy bill without the hassle.

In conclusion, whether you're looking to upgrade your home heating system with a smart thermostat or seeking ways to reduce your energy bills, there are plenty of options available. By considering your needs, compatibility, and the features offered by each device, you can make an informed decision that will bring comfort, convenience, and savings into your home.

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