Best smart thermostat

Smart heating thermostats connect to the internet and let you control your central heating system using your phone, tablet, or smart home devices such as Amazon's Alexa, Google Home or Apple HomeKit. Features of smart room thermostats vary but can include motion sensors that detect when you leave and arrive home, learning your routine to create an automated heating schedule, and even weather forecast tracking. Some people can save energy using a smart thermostat, though the main benefit is that they provide an accessible way to program and adjust your heating schedule, even when you're away from home.

What is a smart thermostat?

A smart thermostat connects to the internet wirelessly so you can programme it remotely, including with voice control. You don't have to fiddle with the control panel of a traditional thermostat and can switch your heating on and off and adjust the temperature easily from your sofa or even holiday.

You can use a smart thermostat regardless of which company supplies the energy to your home. Many thermostats require professional installation, which adds extra cost to the thermostat itself, though self-installation is an option with some models.

Smart thermostats typically have a range of features that make them more versatile and give you more control over your heating system than traditional thermostats. Some work with your underfloor heating and hot water as well. Smart thermostats are particularly good for people whose routines vary a lot, giving more flexibility and control than the set schedule of a traditional thermostat.

By giving greater control of your central heating system, a smart thermostat could help lower your energy bills. For example, you can delay your heating from coming on if you're away from home longer than expected. And some smart thermostats give you insights and information about your energy use that can help you make changes to save on heating bills.

It's worth doing your homework before investing in a smart thermostat to ensure it has the features that matter most to you. Check it's compatible with your smart speaker or home device for voice control. Consider whether you'd like to add other gadgets, such as smart radiator thermostats, as once you've installed a smart thermostat, you'll be tied to the same brand for these products.

What are the benefits of a smart thermostat for people with sight loss?

Smart technology can make it easier for people with vision impairment to live independently at home. Smart thermostats give you remote control of your central heating system and, in some cases, hot water. If you find your standard thermostat tricky to use, a smart thermostat could be easier and more accessible. The remote control allows you to turn your heating on and off and adjust the temperature using an app on your smartphone, tablet, or voice control. Some smart thermostats monitor and learn how you use your heating to create a bespoke schedule, so you don't need to programme it yourself.

It's worth doing your homework before investing in a smart thermostat. Make sure the thermostat you're considering is compatible with any smart home device you already use and that the manufacturer app is compatible with accessibility features on your device. Some smart thermostats claim to be easy to install yourself, but you may prefer to arrange professional installation.

These are a brilliant bit of tech for someone who is visually impaired. You can control your heating from home or away by just using your voice. Before I had a smart thermostat, I would struggle to control the heating or set it to a comfortable temperature. The smart thermostat lets you do this and allows you to fully control your heating by your voice and allows you to maintain a better temperature and also saves you money on your heating bill

Johnny Nastri, Guide Dogs employee

How we choose the best smart thermostat

For people with vision impairment, some features of smart thermostats will be particularly important. You'll want an easy-to-see display panel and integration with your existing smart home device. You'll also want to think about other features and options to suit your lifestyle.

You can control a smart thermostat using your mobile phone or tablet, but if you want voice control, check that the thermostat is compatible with your smart home device. Many but not all thermostats are compatible with several smart devices, including Amazon Alexa, Google Home, and Apple HomeKit.
Some smart thermostats can switch your hot water on and off and even boost it for a short time. You won't need this feature if you have a combi boiler that provides hot water on demand.
Geofencing is a feature of some smart thermostats that uses motion sensors and your phone's location to sense when you arrive or leave home and adjust your heating accordingly.
Multi-room control allows you to choose different temperatures in different rooms or areas of your home. For this to work, you need multiple smart thermostats or smart radiator valves.
For extra convenience, smart thermostats like Nest models can learn about your heating preferences and automatically adjust the heating schedule to your preferred routine.
Some smart thermostats like Tado and Nest are clever enough to respond to the weather forecast, for example, raising the temperature just ahead of a cold spell.
Managing energy bills is important to most people, and some thermostats provide detailed information about energy use and make recommendations to help you become more energy efficient. Note that with some thermostats like Hive and Tado, advanced information like this is only available if you pay a monthly subscription.
Other features of smart thermostats can include draught detection and holiday and frost protection modes. These can give you peace of mind, especially when you're away from home for any length of time.

Best smart thermostat UK

Here are some of the most popular smart thermostats in the UK.

Honeywell makes a range of smart thermostats, including the Honeywell T6 series, priced from around £150. The T6 model is wall-mounted, the T6R wireless can sit on a tabletop, and the T6R-HW can control your hot water and heating, but it is also more expensive. People who've bought the Honeywell T6 like the app's ease of use, that it works with Voiceover, and that you can programme the thermostat directly if your wi-fi or internet connection goes down. Features of the T6 model include:

Being compatible with Apple HomeKit (requires iOS 8.1 or later), Google Home, Amazon Alexa and IFTTT (If This Then That, which allows you to integrate different apps, services, and devices). The app works with Apple's VoiceOver and Siri, as well as Android's TalkBack.

Using the location feature on your smartphone to adapt your home heating. For example, it saves energy when you're out and adjusts the temperature when on your way home. People who've used the thermostat note you have to choose between a schedule or using the geofencing feature.

The option of different heating schedules, from 24-hour blocks to weekend and weekday schedules, which you can programme using the Honeywell app or the thermostat itself.

A touchscreen interface that is always backlit, with the ability to choose the light level that suits you.

The T6 model isn't weather-responsive or able to learn from your routines to automatically create a heating schedule for you.

An alternative to the T6 is the Honeywell Evohome wifi-connected thermostat pack. This is more expensive (around £250) and requires professional installation. However, it has intuitive programming which can intelligently optimise your heating schedule, and you can use it to create and control up to 12 heating zones around your home.
Source: Honeywell
The Nest Learning thermostat typically retails for £219, but prices vary; if you shop around, you may find it for less than £190. The Nest Learning thermostat learns about your habits to automatically create a schedule based on your preferences, and this is the feature people who've bought this thermostat most appreciate. The Nest app is generally accessible with Apple's VoiceOver and Android's TalkBack screen readers, but the thermostat doesn't integrate with Apple HomeKit.

Nest Learning thermostat defaults to an automatic schedule based on learning your routine and preferences as you turn the temperature up and down when you first use it.

It's compatible with Amazon Alexa, Google Home, and IFTTT, but not Apple HomeKit.

The thermostat controls your hot water and central heating, with a boost function allowing you to top up your hot water when needed.

Use your phone's location and the sensor on the thermostat it detects when you're away from home to save energy. The motion sensor also detects when you're nearby and turns on the display backlight.

You can create multi-zonal heating by adding up to 20 thermostats.

This thermostat isn't weather-responsive, and for those who prefer to programme their heating schedule, this can be a little complicated. Google recommend booking professional installation for this thermostat.
Source: Google
The Nest Thermostat E retails with Google for £199, but prices at other retailers vary, and you may get it cheaper by shopping around. Many people who've chosen this thermostat like the fact that it's possible to install this yourself, saving money on the cost of professional installation

As with the Nest Learning thermostat, this model is compatible with Amazon Alexa, Google Home Assistant, and IFTTT, but not Apple HomeKit. The app is generally accessible with leading screen readers.

The Nest Thermostat E features an automatic schedule created based on learning your preferences over a few days and a basic heating schedule you can use as soon as it's installed. It also comes with a stand which lets you place it on a table or desk in any room you like.

The thermostat knows when you're at home or away and turns the heating down when you're out.

The main differences between this and the Nest Learning thermostat are that this model doesn't control your hot water or allow you to set up multi-room heating with multiple thermostats.
Source: Google
The Tado smart thermostat starter kit retails for about £180. Many people who've bought this thermostat said they found it easy to install and like the device's simple, clean design.

The Tado smart thermostat works with Amazon Alexa, Google Home and Apple HomeKit.

You can create multi-zone heating control by adding smart radiator valves.

This thermostat is weather responsive, meaning it will adjust the temperature based on the weather outside.

Features such as open window detection and geolocation are available. However, some functions, such as switching off automatically when you're out, will only work if you subscribe to the Auto-Assist skill in the app at extra cost.

The thermostat doesn't control your hot water, but you can buy an extension kit that enables this.
Hive recently introduced the Hive Thermostat Mini, costing from £119 plus installation. This is a more accessible price point than the original Hive Thermostat and has many of the same features and benefits. Hive products rely on a hub that plugs into your broadband router with an ethernet cable. Hive also makes smart thermostatic radiator valves, smart plugs and security cameras. People who've bought Hive thermostats like that text on the app can be adjusted to make the size bigger, and the range of features at a lower price. Some people note that you must touch the thermostat to see the display and that it times out quite quickly. They also found that the app freezes while the software is being updated.

The Hive Thermostat Mini can control your heating and hot water using the Hive app and has a boost function which means you can top up your usual schedule with extra hours of heating and hot water.

It's compatible with Alexa, Google Assistant, Apple HomeKit, Siri shortcuts and IFTTT.

It uses geolocation to let you know if the heating is on when you're away from home (but you'll have to use the app to switch the heating off, it doesn't do this for you).

Additional features include frost protection which automatically switches the heating on if there's a risk of pipes freezing.

Multi-zonal control allows you to control up to six different areas in your home.

There are limited controls on the thermostat, so you need to use the app to make the most of its features, such as boosting the heating or hot water and creating and reviewing your schedule.
To get information about your energy use and energy-saving tips from Hive, you have to pay for a Hive plus subscription, an ongoing cost, in addition to the price of the thermostat. Unless you're competent in electrical wiring and DIY, you'll need to get the Hive thermostat professionally installed.
The Netatmo thermostat retails from around £150. People who've bought this thermostat like the quality of information the app provides about energy usage and efficiency. Many also said they found it easy to install.

Works with Amazon Alexa, Google Home and Apple HomeKit. The app is accessible with Apple's VoiceOver and Android's TalkBack screen readers, though some features could be easier to use.

Adding up to 20 smart radiator valves (purchased separately) allows you to control the temperature in different spaces throughout your home.

The thermostat has a child lock, eco mode, and frost protection when you're away from home.

The Netatmo thermostat doesn't give you hot water control and isn't weather-responsive. It doesn't have geolocation, so it can't adjust your heating depending on where you are.
Source: Netatmo

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Technically reviewed by: Subject Matter Experts on 02/11/2023

Guide Dogs is committed to integrating technology into our service delivery and promoting excellence in accessibility and usability. Our staff undergo comprehensive training in technology and accessibility in collaboration with industry leaders like Apple. We foster knowledge of technology and create content through our Technology Champions, comprising Vision Rehabilitation Specialists and Habilitation Specialists. We review this content periodically to ensure that it is up to date and includes new features and changes with operating systems. We work with our partners to ensure accessibility is at the centre of the design. To find out more, there is more information in our accessibility policy.

Best smart thermostat

On this page

What is a smart thermostat?

What are the benefits of a smart thermostat for people with sight loss?

How we choose the best smart thermostat

Best smart thermostat UK

Technically reviewed by: Subject Matter Experts on 02/11/2023

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