Best Smart Thermostats in the UK in 2026

Want the best smart thermostat for your home?

In this guide, we compare the leading smart thermostats available in the UK right now, including the Google Nest Learning Thermostat, tado° X, Hive Thermostat, Hive Thermostat Mini and Resideo Honeywell Home T6R.

We’ve looked at pricing, installation, smart features, app quality, virtual assistant support, boiler compatibility and overall value, so you can work out which thermostat is actually worth buying in 2026.

Prices and offers move around, so treat the figures below as guide prices rather than permanent RRPs. Retailers love changing prices when nobody is looking. Sneaky little devils.

Quick comparison table:

Prices are approximate RRPs as of June 2026; check retailers for current prices and deals (table includes affiliate links, which may earn us a small commission - at no extra cost to you.)

Spoiler: what should most people buy?

For most UK homes in 2026, tado° X is the best all-round buy.

It is cheaper than Nest, easier to expand into room-by-room heating, supports Alexa, Google Assistant and Apple Home, and the newer X range is built around Matter and Thread, which makes it a stronger long-term choice than many older smart heating ecosystems.

tado also says X devices come with a 10-year warranty, which is refreshingly long in a world where half of your tech products seem to need replacing the minute you finally work out how to use them.

If you want the cheapest decent option, the Hive Thermostat Mini is the standout budget pick at around £79.

If you still want the best-looking thermostat with strong learning features and premium feel, the Nest Learning Thermostat remains a good product at £219, but it is no longer the obvious value winner in the UK.

That is partly because Google has confirmed it will no longer launch new Nest thermostats in Europe. The 3rd-gen Nest Learning Thermostat is still supported and still available while stocks last, but it is now more of a polished premium legacy choice than the most future-proof buy.

Factors we considered when choosing the best smart thermostats in the UK 

A smart thermostat’s main purpose is to help you control and monitor your energy use.

Ideally, you want it to be user-friendly, easy to install and genuinely useful in helping you stay on top of your energy consumption and hopefully save some money in the process.

This blend is where the best smart thermostats perform well, while the less smart ones come out looking a little dumb. Which is ironic, but here we are.

With this in mind, we have considered the following factors when ranking the thermostats, we analysed: 

• Ease of the installation process 

• User-friendliness of the thermostat 

• The overall usefulness of the features offered 

• The ability of the thermostat to save you time and money on your energy bills 

• Compatibility of the thermostat with virtual assistants such as Alexa and Google Home 

• The price range of the smart thermostat 

• Customer reviews and reputation 

• Warranty period the brand offers 

Best Smart Thermostats in the UK

Our current ranking is:

1. tado° X Smart Thermostat

2. Google Nest Learning Thermostat, 3rd gen

3. Hive Thermostat Mini

4. Hive Thermostat

5. Honeywell Home T6R

🎥 Watch our full YouTube review below:

#1 tado° X Smart Thermostat

tado° now takes the top spot.

That is mainly because it gives most homeowners the best balance of price, compatibility, useful features and future-proofing.

The newer X range supports Matter and Thread, works with all major smart home platforms and is compatible with most boilers and heat pumps using Relay or OpenTherm. It can also be expanded with smart radiator controls if you want room-by-room heating.

• Price: £129.99 for the starter kit

• Wireless: Yes

• Warranty: Up to 10 years on X devices

• Easy DIY: Yes, in many homes

• Subscription Required: No for the core thermostat, but some app services are paid extras

• Optional subscription: tado° AI Assist, usually £3.99/month

• Smart home support: Alexa, Google Assistant, Apple Home, Matter and Thread

• Boiler compatibility: Relay and OpenTherm on compatible systems

tado° X features

tado° X has all the main features you would expect from a modern smart thermostat, including app control, scheduling, geofencing and heating optimisation.

Where it really pulls ahead is flexibility.

You can start with a thermostat and then add smart radiator valves later, letting you control heating room by room rather than heating the whole house at once. That is a much smarter way to run heating in practice, especially in larger homes, older homes and homes where some rooms are used far more than others.

It also has strong compatibility credentials. tado says X works with all major smart home platforms and is Matter/Thread-enabled, which gives it an edge for long-term smart-home compatibility.

That does not mean Matter is magic. Nothing in smart-home land is ever quite that simple. But it does mean tado° X is built around a newer platform rather than relying entirely on older ecosystem integrations.

Can tado° X save you money?

tado says its smart heating can help users save energy, and its UK product pages reference savings claims tied to smarter control and reduced waste.

The exact saving will depend on what controls you had before, your heating habits and how much you use zonal control. The stronger case here is not the headline claim, but the fact that room-by-room control and OpenTherm support can reduce unnecessary heating.

tado° X device compatibility & connectivity

tado° X works with the major smart home ecosystems, including Alexa, Google Assistant and Apple Home. It is also one of the few mainstream options now clearly pushing Matter support, which gives it an edge on future compatibility.

Will tado° X work with your boiler?

According to tado, the X range works with many boilers and heat pumps, including systems using Relay and OpenTherm.

That said, heating systems are annoying little beasts and UK homes vary a lot, so you should always use tado’s compatibility checker before buying.

This is especially important if you have:

• a system boiler

• a heat-only boiler

• a hot water cylinder

• multi-zone heating

• a heat pump

• an older or unusual boiler setup

For standard combi boiler setups, tado° X should be one of the easier smart thermostats to consider.

tado° X design

tado’s design is subtle rather than flashy.

It does not have the visual punch of Nest, but it looks clean, modern and unobtrusive, which plenty of homeowners will prefer.

That is the right design choice for a thermostat that is often meant to disappear into the room rather than dominate it. Not everything in your house needs to look like it is auditioning for a design museum.

Can you install a tado° X thermostat yourself?

In many homes, yes.

tado says you can replace existing room thermostats yourself in just a few steps, and its app-led installation process is one of the more approachable options on the market.

That said, if you are not comfortable with wiring, or your heating system is more complicated than a basic thermostat swap, get a qualified installer.

Saving a few quid is nice. Accidentally turning your heating controls into a wall-mounted riddle is less nice.

tado° X smart thermostat: Heatable’s verdict

This is now the best smart thermostat for most UK homes.

Nest still looks better, and Hive is cheaper, but tado° X is the strongest all-rounder. It is well priced, packed with genuinely useful features and much easier to recommend as a future-proof buy.

If you want smart heating that can grow into room-by-room control and work nicely with modern smart-home platforms, tado° X is the one we would pick.

#2 Google Nest Learning Thermostat, 3rd gen

The Nest Learning Thermostat is still the best-known smart thermostat for many people, and with good reason.

It looks excellent, it learns your schedule, it has a polished app experience and it still feels more premium than almost everything else in the category.

But there is an important 2026 caveat.

The 3rd-gen Nest Learning Thermostat and Nest Thermostat E will continue to be sold while current supplies last and will keep receiving support, but this does make Nest feel less future-proof in the UK than it used to.

So, Nest is still good. It is just no longer the obvious “buy this and don’t think about it” choice.

Nest Learning Thermostat key details

Nest smart thermostat has a range of smart features that help you to save energy and money and streamline your energy use, these include the following: 

• Price: £219

• Wireless? The thermostat display can be wall-mounted or placed on a stand; the Heat Link is wired to the heating system

• Warranty: 2 years standard

• Easy DIY? Usually better with professional installation

• Subscription required? No

• Smart home support: Nest app, Google Home, Google Assistant and selected integrations

• Boiler compatibility: Many central heating systems, including combi boilers, system boilers, heat-only boilers, domestic hot water tanks and OpenTherm systems

Nest features

The Nest Learning Thermostat has a range of smart features that help you control your heating, reduce wasted energy and streamline your energy use.

These include:

• learning schedule

• remote app control

• Home/Away Assist

• Farsight display

• hot water control

• OpenTherm support via Heat Link on compatible boilers

• heating history and energy visibility

Smart, auto-learning features

Nest learns from you.

By monitoring your heating use, it automatically adjusts and syncs your heating with your behaviour, learning the times of day you use your heating and the room temperatures you tend to prefer.

It can also take account of your home’s heating behaviour and the weather outside, building a personalised schedule for your property.

This is still the main reason people like Nest. It feels less like a thermostat you programme and more like a thermostat that quietly pays attention. Slightly creepy, but useful.

Control from anywhere 

The Nest app lets you control your thermostat wherever you are, provided your thermostat is connected to Wi-Fi and your phone has internet access.

So, if you are on your way home and want the place warm before you arrive, you can adjust the temperature from your phone.

Or you can turn the heating down from bed because getting up would be a monstrous injustice.

Location detection (a.k.a Geo fencing)

Using your phone’s location and built-in sensors, Nest can detect whether you are home or away and adjust heating accordingly.

That means it can avoid heating an empty house, which is one of the most basic but useful smart thermostat features.

Open Therm technology 

The Nest Learning Thermostat can work with OpenTherm-compatible boilers using its Heat Link.

OpenTherm allows compatible boilers to modulate rather than simply switch on and off. In practice, that can help the boiler run more efficiently and maintain steadier temperatures.

Not all boilers support OpenTherm, and not all heating setups are wired the same way, so check compatibility before buying.

Nest Protect

Nest can work alongside selected Nest products, including Nest Protect smoke and carbon monoxide alarms.

Historically, this was a neat part of the Nest ecosystem. However, given Google’s wider changes to Nest hardware in Europe, we would not treat Nest Protect integration as a main reason to buy the thermostat today.

Buy Nest because you want the thermostat. Not because you are trying to build a whole Nest empire in 2026.

Can Nest thermostats save you money on your heating bills?

Nest has historically claimed that its smart thermostats can help reduce heating energy use.

As with all smart thermostats, the saving depends heavily on what you are replacing.

If you already use your heating efficiently, savings may be modest. If you currently have poor controls, no proper schedule, or a habit of heating an empty home, Nest could help reduce waste.

The most useful features for saving money are:

• learning schedule

• Home/Away Assist

• app control

• heating history

• OpenTherm support on compatible boilers

Looking to pay for your new boiler monthly? Refer to our boilers on finance guide for more info. 

Nest thermostat device compatibility & connectivity 

The Nest thermostat can be controlled through the Nest app and Google Home.

It works well with Google’s ecosystem, and it remains one of the most polished thermostat experiences available.

However, if you want the newest smart-home platform support, tado° X is the stronger pick because it is built around Matter and Thread.

Nest is still sleek. It is just no longer leading the platform race in Europe.

But what about connectivity? For example, can the Nest be used with Alexa

Again, Nest is completely adaptable and can work with the most popular virtual assistants, including: 

• Amazon Alexa

• Google Home

• Logitech

• IFTTT

• Samsung SmartThings

• WeMo

• Wink

• Xfinity

It is worth noting that the Nest does have a few basic requirements to operate including a Wi-Fi connection, as well as a phone or tablet with iOS 8 or later, or Android 4 or later. But this is the same case for most smart devices. 

Will the Nest thermostat work with your boiler?

It's good news in that department, too.

The Nest thermostat is compatible with most heating systems including the following: 

• Combi boilers, biomass, system boilers, immersion heaters,  and heat-only boilers

• Air source/ground source heat pumps

• Underfloor heating systems

• Zoned heating/multiple zones

• Domestic tanks for hot water

• Systems enabled with Open-Therm technology

However, if you want to make doubly sure, you can always check your unit’s compatibility on the official Nest website, simply enter your appliance’s model number and it will give the answer.

You can do that, here. 

Nest thermostat warranty

Nest offers a 2-year limited warranty on the Nest Learning Thermostat.

Previously, Nest Pro installation could also be a useful route for homeowners who wanted professional setup and additional reassurance.

Given the current European product position, we would recommend professional installation if you want Nest, especially if you are not confident with heating controls.

Nest customer reviews

Nest has thousands of customer reviews online across retailers and review platforms, and it has built one of the strongest reputations in the smart thermostat category.

The most common criticism is usually price, and now there is another fair concern: long-term product direction in Europe.

That does not make Nest a bad product. But it does mean buyers should be aware that Google is no longer launching new Nest thermostats in Europe.

Nest thermostat design 

This is where Nest still wins.

The circular design, metal ring and high-resolution display make it look better than almost every other smart thermostat on the market.

The Farsight display can show the temperature, weather or time when it detects you across the room, which is genuinely nice.

The Nest can be wall-mounted or placed on a stand, although the stand is usually sold separately.

Want to have your boiler moved to a different location? Check out our "cost of moving boiler" guide.

Can you install a Nest thermostat yourself? 

The Nest smart thermostat can be installed by yourself, or if you prefer you can use a Nest Pro Installer. This is a professional Nest installer who has been vetted and accredited with specifically installing the Nest device. 

If you do opt to have the Nest installed by a Pro installer, you will be entitled to the extended Pro warranty, so it is certainly worth considering.

Read all about how to use a smart thermostat and see what temperature you should set your thermostat in winter. 

Nest smart thermostat: Heatable's verdict

Nest remains the best-looking smart thermostat in the UK and still has some of the best learning features.

If design, polish and the learning schedule are your priorities, it is still a very good product.

However, it is no longer our overall number one. Google’s decision not to launch new Nest thermostats in Europe makes it harder to recommend as the most future-proof choice.

For most UK homes in 2026, tado° X is the better all-round buy. Nest is now the premium design pick.

Wondering who won the battle between Hive and Nest? Find out in our Nest vs Hive comparison. 

#3 Hive Thermostat Mini

The Hive Thermostat Mini is now the strongest budget pick in the UK smart thermostat market.

It gives you the core Hive smart heating features for less money than the standard Hive Thermostat, making it a sensible option for anyone who wants app control, schedules, geolocation alerts and voice assistant support without paying Nest money.

In simple terms, it is Hive without the fancy dial.

And for plenty of people, that is absolutely fine.

Hive Thermostat Mini key details

• Price: £79

• Wireless? Yes, with receiver setup

• Warranty: Typical 1 year

• Easy DIY? Usually professional installation recommended

• Subscription required? No for core controls

• Optional subscription: Hive+

• Smart home support: Alexa, Google Assistant, Apple HomeKit, Siri Shortcuts and IFTTT

• Boiler compatibility: Works with many UK heating systems; OpenTherm available on compatible combi boiler setups only

Hive Thermostat Mini features

The Hive Thermostat Mini gives you the main features most people actually use:

• heating schedules

• heating boost

• app control

• geolocation alerts

• frost protection

• holiday mode

• voice control

• OpenTherm support on compatible combi boiler setups

It puts most controls into the Hive app rather than the thermostat itself, which is why it costs less than the standard Hive Thermostat.

If you mostly control your heating from your phone anyway, that is hardly a tragedy.

Set daily schedules

Hive lets you set heating schedules through the Hive app.

You can create daily heating routines based on when you are home, when you are out and when you want the house warm.

This is one of the simplest ways to avoid wasting energy, especially if your old controls are basically a timer from the Jurassic period.

Geolocation alerts

Hive can use your phone’s location to send reminders when you leave home and the heating is still on.

Unlike some more aggressive automated systems, this is more of a nudge than a full takeover.

That is useful for people who want smart heating without feeling like their thermostat has appointed itself head of the household.

Frost protection

Hive includes frost protection to help prevent your pipes freezing in winter.

It is not the flashiest feature, but it is one of the more genuinely useful ones.

Frozen pipes are expensive, irritating and very much not the cosy winter aesthetic anyone asked for.

Hive Thermostat Mini device compatibility and connectivity

Hive supports the major smart-home voice assistants and platforms, including:

• Amazon Alexa

• Google Assistant

• Apple HomeKit

• Siri Shortcuts

• IFTTT

That makes it more broadly compatible than older versions of this article may have suggested.

Hive is not as future-facing as tado° X because it does not have the same Matter/Thread positioning, but it is still a well-supported UK platform.

Will Hive Thermostat Mini work with my heating system?

Hive works with many UK heating systems, including gas and LPG boilers, oil boilers and some electric boiler setups.

Hive also supports OpenTherm, but with an important limitation: it is for compatible combi boilers only, using the correct receiver setup.

So, do not assume “OpenTherm enabled” means “OpenTherm on absolutely anything”.

Heating systems love exceptions. It is their favourite hobby.

Can you install the Hive Thermostat Mini yourself?

Hive installation usually involves connecting a receiver to your boiler or heating system, so professional installation is recommended for most homeowners.

If you are confident with wiring and know exactly what you are replacing, DIY may be possible in some cases, but most people are better off booking an installer.

Hive Thermostat Mini: Heatable’s verdict

The Hive Thermostat Mini is the best budget smart thermostat for most UK homes.

It is not as premium as Nest and not as future-proof or expandable as tado° X, but at around £79 it offers a lot of smart heating control for the money.

If you want a simple, affordable way to control your heating from your phone, this is the one to look at first.

#4 Hive Smart Thermostat

The Hive smart thermostat is the creation of energy giant British Gas and as a result, many are now familiar with the brand, due to its huge marketing campaign in recent years. 

• Price*
  £179 for the standard unit 

• Wireless
  Yes as it can be powered by batteries, but, can also be mounted on a stand with 3 pin plug

• Warranty
  1 year

• Easy DIY
  Yes, knowledge of basic wiring required

• Subscription Required
  No 

Check our new boiler costs guide and use our boiler size calculator if you want to get a better understanding of how our fixed-price boiler quote tool works. 

Hive's features

Unlike Nest, Hive does not have as many features and it is lacking in terms of compatibility, but without further ado, here is our full analysis: 

Set daily schedules 

Hive smart thermostat allows you to set your own personalised daily heating schedule manually using the Hive mobile app.

You can set up to 6 individual daily slots, allowing you to easily adjust your heating based on your individual needs, helping to make further savings on your bills. 

Geofencing 

The Hive has geofencing and sends an alert to your phone when out of the area or re-entering the area to see if you want the heating on or off.

Geolocation 

Like the Nest, using the location of your mobile, the Hive can tell when you have left your home and if the heating has been left on, it will send you a reminder to turn it off. 

Frozen pipe protection 

Frozen pipes are a common issue during the winter months, so Hive’s frost protection can be incredibly useful. If the temperature outside drops below 7°C, frost protection will be activated, preventing your pipes from freezing. 

Hive thermostat device compatibility & connectivity 

Just like Nest, Hive can be connected and used on, most devices including computers, tablets, and mobiles. 

In terms of connectivity, it can be connected with the most popular virtual assistants including Amazon Alexa and Google home. 

Is your boiler leaking or losing pressure? Use our quick and easy tool to get your fixed price boiler replacement. 

Will Hive work with my heating system? 

Since British Gas is quite familiar with the British market, Hive Active Heating will work with most heating systems in the UK, including the following:

• Gas & LPG Boilers 

• Oil Boilers 

• Electric Boilers 

You can always check whether your specific new boiler replacement will be compatible with Hive on the official website.

Control your heating with Hive & Alexa 

Every Hive thermostat comes with a free Amazon Echo Dot*, allowing you to control your heating with your voice.

For instance, if you feel like your heating needs a little boost, you can simply say “Alexa give my heating a boost”, in which case Hive will provide you with an extra hour of heat before turning it off. 

Related thermostat guides: 

• The best location for a thermostat.

• Thermostat and boiler not communicating? 

• The thermostat on the boiler not working. 

• Boiler controls and thermostats. 

Hive thermostat design 

Nothing quite compares to the Nest’s sleek and award-winning design, unfortunately not even the Hive. 

The box-like design looks pretty good as far as thermostats go, but it looks quite dated next to The Nest’s high resolution, digital interface. 

Although, you can choose a custom thermostat frame designed by Dulux to match the colour of the décor of your home, which is a truly pointless, but nice touch. 

Hive customer reviews

Overall, Hive Smart thermostat has some very positive customer reviews, but far less than Nest, maybe reflecting a difference in popularity and sales figures between the two products. 

Notable complaints reference the poor customer service they received when something went wrong. 

Hive thermostat warranty period 

Unlike Nest’s impressive 2-year warranty, the Hive is only available with a 1-year warranty. 

Can you install the Hive thermostat yourself? 

The Hive thermostat can be installed by yourself, but you will need to have some knowledge of wiring it to the boiler, so it is probably not the best option for most people. 

British gas recommends a professional install carried out by one of their gas safe engineers, which takes around an hour to complete, after which you will receive an instructional tutorial by the engineer. 

Got a Hive and it isn’t working? 

You’re not alone. Check out our guide on the top reasons why your Hive app/thermostat isn’t working.

Hive smart thermostat: Heatable's verdict

There is no doubt that the Hive is the best and now on the 3rd generation, this brand shows no sign of stopping when it comes to innovating and improving the smart home technology they offer. 

Benefiting from the best design by far that includes a high resolution and easy-to-use interface, this device has all the features you could need to keep tabs on your energy use. 

The only downside is the price, at £179 it is positioned as the premium option but who can blame them? DIY installation, crisp design and all the features you could need to make it the best smart thermostat to own.

#5 Honeywell T6 smart thermostat 

The Honeywell brand has been a giant in the heating and cooling industry for decades, boasting that they helped put a man on the moon and made air travel safer, so it’s not surprising that they also offer their smart thermostat. 

• Price*
  £150

• Wireless
  No (but, can also be mounted on stand with 3 pin plug)

• Warranty
  2 years

• Easy DIY
  No

• Subscription Required
  No 

Honeywell T6 smart thermostat features

Honeywell does not have as many features as the Nest, but it does have all the major perks you would expect in a smart thermostat, these include the following: 

Geofencing 

The geofencing or location-based temperature control is just like the features offered by rivals. The T6 smart thermostat allows you to control it remotely using the Honeywell application on your mobile or other devices, allowing you to adjust the temperature on demand. 

The T6 also uses your phone's location to determine if you are at home or not, adjusting, as necessary. 

For example, if not home, it can turn off to save energy and will start to heat your home when it detects you are on your way back home. This feature is standard for most smart thermostats, albeit very useful. 

Adjustable, programmable & flexible 

The T6 can adjust the temperature of your home to meet your heating demands, no matter what time of day, how insulated your property may be or the temperature outdoors.  

The best part is that you can set a 7-day schedule based on your specific routine, helping you to save energy and money and ensure the temperature is just how you like it when you like it. 

The T6 offers you maximum flexibility, enabling you to adjust your schedule remotely from the Honeywell app at any time, should your plans change. 

Honeywell T6 device compatibility and connectivity 

As standard, the Honeywell T6 thermostat is compatible with everyday devices including computers, phones, and tablets. 

You connect to the device using the Honeywell Home App, which is the hub of all other smart home products offered by Honeywell, which includes thermostats, leak detectors, TVs, and security systems. From here you can control the T6 and adjust the settings as required.

The T6 can be connected to the most common virtual assistants and smart home interfaces, including the following: 

• The Apple Homekit 

• The Apple Watch 

• Google Home 

• Amazon Alexa

• IFTT

Honeywell T6 thermostat warranty period 

Honeywell offers a 2-year warranty on their T6 smart thermostat, which is reasonable and standard for the thermostat market. 

Honeywell T6 thermostat design 

Honeywell’s T6 offers a sleek, modern design and a user-friendly digital interface that provides the subtlety that many people look for. 

It is certainly one of the better-looking smart thermostats on offer, right up there with the Nest, but somehow the Nest’s timeless design and large high-resolution interface have a lasting impact that the T6 does not quite achieve. 

Honeywell T6 thermostat customer reviews 

Honeywell has been a leading brand in the heating and cooling space for years, so it is not surprising to see their smart thermostat earn itself a solid 4 out of 5 on average. Seen on sites like Amazon. 

Unfortunately, the negative reviews are concerning with one self-described HVAC technician referencing the lack of a temperature differential within the unit, causing it to turn on and off every few minutes to maintain the chosen temperature, which he notes will cost a lot of money. 

Other than that, most reviews are positive and frequently reference the unit's ease of connectivity with other devices and virtual assistants and its user-friendliness. 

In need of a new boiler? Learn all about combi boilers in our what is a combi boiler guide. 

Do radiator covers block heat? Check our guide and more energy-saving tips. 

Can you install the Honeywell T6 yourself? 

The T6 does not have the same wireless capability as other thermostats, so needs to be wired directly into your boiler, therefore, it is designed with professional installation in mind. 

Honeywell T6 smart thermostat: Heatable's verdict 

Honeywell has been around for over 100 years and has built a solid reputation for its high-quality range of heating and cooling products, so their brand is certainly one that is easier to trust. 

Their smart thermostat has all the essentials, allowing you to easily control and modulate your home heating for maximum efficiency. 

Unfortunately, they do require professional installation, but for just £150 they are the ideal budget-friendly option.

Our two-pence on smart thermostats 

We hope our smart thermostat analysis has helped you see how the most popular brands in the UK currently compare.

As made clear in our thermostat reviews, our current recommendations are:

• tado° X is the best smart thermostat overall for most UK homes.

• Nest Learning Thermostat is the best premium design choice.

• Hive Thermostat Mini is the best budget smart thermostat.

• Hive Thermostat is the best choice if you want simple physical dial controls.

• Resideo Honeywell Home T6R is a strong conventional option for installers and homeowners who want something familiar.

If you would like more control over your energy use and want to reduce wasted heating, a smart thermostat is a great place to start.

According to Energy Saving Trust, installing and using heating controls effectively could save around £110 a year in Great Britain and Northern Ireland.

That does not mean every household will save exactly £110. If you already use your heating carefully, the savings may be smaller. If your current controls are ancient, confusing or ignored completely, the savings could be more meaningful.

Smart thermostats are not magic. They will not make a badly insulated home behave like a Passivhaus.

But they can help you stop wasting heat, create better schedules, control your heating remotely and make your home more comfortable.

New boilers installed by Heatable are compatible with smart thermostats including Nest, Hive and tado°, which you can order alongside your boiler installation.

Final verdict: which smart thermostat should you buy?

For most people, we would buy tado° X.

It has the best combination of price, smart-home compatibility, OpenTherm support, room-by-room expansion and long-term platform appeal.

If your budget is tighter, buy the Hive Thermostat Mini.

If you want the prettiest thermostat and still love the Nest ecosystem, the Nest Learning Thermostat remains excellent, but go in with your eyes open: Google is no longer launching new Nest thermostats in Europe.

If you want something simple, familiar and installer-friendly, the Honeywell Home T6R is still a solid option.

In other words:

• Best overall: tado° X

• Best premium design: Nest Learning Thermostat

• Best budget pick: Hive Thermostat Mini

• Best physical controls: Hive Thermostat

• Best conventional installer pick: Honeywell Home T6R

And if your current thermostat is still a yellowing plastic box from the age of dial-up internet, frankly, almost any of these will feel like living in the future.