The best smart thermostat 2019: control your heating and hot water from your phone

With our pick of the best smart thermostats – from Nest, Tado, Hive and more – you can control your heating and hot water from your phone – and never return to a cold house again

The best smart thermostat for monitoring heating and energy in your home

Looking for the best smart thermostat, so you can reduce energy use and control your heating and hot water from your phone? Smart thermostats not only enable you to control your boiler from wherever you happen to be in the country, but many also enable you to change your hot water timings and adjust your underfloor heating settings, too. 

Using smart home tech is also a great way for you to save on your energy bills. For example, if plans change and you’re no longer going to be home for seven o’clock, you can tap into the app and delay the timer, so you’re not wasting money (or energy) by heating your home unnecessarily. 

If you're still not sure about what a smart thermostat is or why you might benefit from having one over a traditional model, go to our 10 reasons why you need a smart thermostat to be persuaded. 

Find out more about how to heat your home in our specialist guide, which covers everything from central heating, radiators and stoves, to fireplaces and underfloor heating. Then, browse our technology hub page for more advice, information and comprehensive product reviews.

What is the best smart thermostat?

In our opinion, the best smart thermostat currently available is the Nest Learning Thermostat, which is not only stylish on the outside, but also evolves as it comes to terms with the temperature that you like in your home – hence the use of 'learning' in its name.

Control when your boiler starts heating up the hot water tank from your phone, and rely on your Nest device to automatically adjust when your leave the house, as it gains a greater understanding of your requirements. 

How to buy the best smart thermostat

When it comes to buying the best smart thermostat to suit your needs, there are a few factors to look out for. Generally, we'd recommend considering the following:

What do you want your smart thermostat to control?

While some smart thermostats are all encompassing, meaning they'll control your boiler, hot water and underfloor heating, don't take it for granted that this is the case for all models. Read into what each model allows you to control and bear in mind whether you may consider upgrading your heating systems in future.

Will your smart thermostat require professional installation

Bear in mind that some smart thermostats will require professional installation, which will mean you incur additional costs, while others can easily be fitted on a DIY basis.

Self learning

While some models of smart thermostat adjust settings as they 'learn' your heating behaviours, this is not the case for all models. 

The best smart thermostats you can buy right now

The best smart thermostat the hive learning thermostat

1. Nest Learning Thermostat

Best smart thermostat: this self programming thermostat makes controlling your heating easy

Specifications
Best for: Self programming
Controls: Boiler, underfloor heating, hot water
Works with: Android, iOS, Alexa, Google Home
Reasons to buy
+ Slim and stylish 
Reasons to avoid
-Needs to be installed by a professional-If it's not in the right place in your house, it may not work as well

Stylish on the outside and intelligent on the inside, the Nest Learning Thermostat is probably one of the top smart thermostats around. It learns the temperature that you like and auto schedules to turn the heating on at the best time.

You can control when your boiler starts heating up the hot water tank from your phone and it can automatically adjust your heating when you leave the house, so you can be confident that Nest has your back when you’re in a rush.  

Browse more smart thermostats from AO.

Tado Smart Thermostat an example of the best smart thermostats

2. Tado Smart Thermostat

Best smart thermostat for low budgets: a smart thermostat needn’t be expensive

Specifications
Best for: Easy to use
Controls: Boiler, underfloor heating, hot water
Works with: Browser, Android, iOS, Alexa
Reasons to buy
+ Uses the weather forecast and GPS 
Reasons to avoid
-No self-learning capabilities-No motion-control

To ensure you’re never paying over the odds for your energy, this smart thermostat uses the local weather forecast and your phone’s GPS to control the temperature of your home. 

Although the Tado is half the price of the Nest, it is compatible with a range of heating systems, including underfloor heating, and you can use it alongside the Amazon Echo for complete smart home functionality. 

Browse more smart thermostats from Amazon.

Honeywell Evohome an example of the best smart thermostats

3. Honeywell Evohome

Best smart thermostat for multi-room control: a clever device that allows you to create up to 12 heating zones

Specifications
Best for: Rooms at different temperatures
Controls: Heating
Works with: Android, iOS, Alexa
Reasons to buy
+ Learns how long your property takes to heat up  
Reasons to avoid
-Lacks other sophisticated features

The Honeywell Evohome allows you to create up to 12 heating zones, so if you prefer your bedrooms to be cool and your living areas to be warm, the Evohome will take care of it.

It can monitor how long your property takes to heat up, then adjusts its timer settings to ensure it's always at the ideal temperature. You can also control your heating using the app, with options to turn it up, down, on or off.  

Shop more smart thermostats from Very.

Netatmo Smart Thermostat an example of the best smart thermostats

4. Netatmo Smart Thermostat

Best smart thermostat for ease of use: an alternative to the Tado that also works with Google Home

Specifications
Best for: Simplicity
Controls: Heating
Works with: Android, iOS, Alexa, Google Home
Reasons to buy
+ Easy enough to install yourself 
Reasons to avoid
-No motion-control

The Netatmo is another great choice if you don’t want to spend too much on a smart thermostat. According to the brand, you’ll use 37% less energy to heat your home, which means you won’t be spending as much on your energy bills.

With the addition of Smart Radiator Valves, The Netatmo enables you to control your heating room by room and it's compatible with heat pumps, gas, oil and wood fired boilers. 

Take a look at more smart thermostats on offer from BT.

Hive Active Heating 2 an example of the best smart thermostats

5. Hive Active Heating 2

Best smart thermostat for frost protection: with the potential to save up to £130 on your heating bills, Hive is certainly worth the investment

Specifications
Best for: Scheduling your hot water and heating
Controls: Heating and hot water
Works with: Browser, Android and iOS
Reasons to buy
+ Set up to six daily time slots 

While it’s all very well and good being able to turn your heating and hot water on and off with your phone, what happens if you forget? 

The Hive Active Heating thermostat enables you to set up six daily time slots to ensure your heating and hot water is always on at the best times. The thermostat also comes with automatic frost protection capabilities, so you never have to worry about your pipes freezing up.  

Take a look at more smart thermostats on offer from John Lewis & Partners.

Drayton Wiser Multizone Kit 1 an example of the best smart thermostats

6. Drayton Wiser Multizone Kit 1

Best smart thermostat for radiator control: a good alternative to the Nest and Honeywell thermostats, the Drayton thermostat also allows you to set up different heating zones

Specifications
Best for: Radiator controls
Controls: Heating and hot water
Works with: Alexa, Android and iOS
Reasons to buy
+ Comes with two radiator thermostats 
Reasons to avoid
-Not ideal for those with bigger houses

The Drayton Wiser Multizone Kit is a great base for a more extensive zone heating system. Coming with two radiator thermostats, the start up package allows you to create two heating zones, which is handy if you want the upstairs of your home to remain a different temperature to the downstairs. Because the thermostat is compatible with Alexa, you can use your voice to control your heating, while its eco mode and humidity sensor are also handy extras that make it worth the spend.  

Looking for more smart home tech advice?