Last Updated On October 28th, 2018

It’s a chilly winter’s day, and you’ve managed to get away from the office earlier than usual. Your heating won’t be on yet, so once you get home, you open the door to a cold, unwelcoming house. Sound familiar? Well, it doesn’t have to be this way. It’s time to buy the best smart thermostat. In our age of home technology, they are becoming increasingly popular. These clever devices connect to your system and can be controlled remotely, meaning your home is always cosy and warm when you need it to be. However, with so many options to choose from, it can be difficult to find the best wireless thermostat.

In this review, we show you some of the leading products on the market so you never have to come home to a cold house again.

Best Smart Thermostats Compared

Editor's Choice
Nest Learning Thermostat, 3rd Generation
Best Smart Geolocation
Hive Active Heating and Hot Water Thermostat without Professional Installation, Works with Amazon Alexa
Best Auto-Adapt Function
Smart Thermostat for Individual Boiler - Netatmo by Starck, Works With Amazon Alexa
Nest Learning 3rd Generation
Hive Active Heating and Hot Water
Netatmo by Starck
Remote Control
Nest app
Hive app
Smartphone app
Voice Control
works with Amazon Alexa and Google Assistant
works with Amazon Alexa, IFTTT and Google Assistant
works with Amazon Alexa, Siri and Google Assistant
Price
£169.99
£108.99
£124.99
Editor's Choice
Nest Learning Thermostat, 3rd Generation
Nest Learning 3rd Generation
Remote Control
Nest app
Voice Control
works with Amazon Alexa and Google Assistant
Price
£169.99
More Info
Best Smart Geolocation
Hive Active Heating and Hot Water Thermostat without Professional Installation, Works with Amazon Alexa
Hive Active Heating and Hot Water
Remote Control
Hive app
Voice Control
works with Amazon Alexa, IFTTT and Google Assistant
Price
£108.99
More Info
Best Auto-Adapt Function
Smart Thermostat for Individual Boiler - Netatmo by Starck, Works With Amazon Alexa
Netatmo by Starck
Remote Control
Smartphone app
Voice Control
works with Amazon Alexa, Siri and Google Assistant
Price
£124.99
More Info

Top 7 Smart Thermostat Reviews

Here, we take a look at 7 of the best wireless thermostats available so you can make the right purchase for your needs.

1. Nest Learning 3rd GenerationNest Learning 3rd Generation

The Nest Learning 3rd Generation is a great solution to help you take control of your bills. In fact, Nest thermostats have saved their customers more than 4 billion kWh of energy usage since the year 2011.

Features

This clever device learns from your activities and becomes familiar with your schedule and preferences. Over time, it studies the temperature you prefer when you are at home. Then, it automatically programs the temperature to match so you do not have to adjust it. If you go out for the day, it recognises that you aren’t home, and turns the heat down to save energy.

It isn’t just your preferred temperature and location that this device monitors, though. This learning thermostat also analyses how efficient the insulation of your home is. Thereby, changing its behaviour depending on how long it will take to adequately heat, and maintain this temperature.

If you are going to be away for a few days or coming home earlier than planned, you can conveniently control the heat and hot water from anywhere. This is done by using the Nest app on your smartphone, laptop or tablet.

It is compatible with the majority of central systems but does require installation by a professional. However, this is easily arranged by calling the number on the packaging.

Pros:
  • Learns your preferred temperatures throughout the day
  • Can be controlled via Nest app
  • Turns the heat down when you are not home
  • Recognises when it should turn on to reach the desired temperature in time
  • Compatible with most systems
Cons:
  • Power cord and plug not included as standard
  • 30-minute increments for water heating only
  • User manual is quite complex

2. Hive Active Heating and Hot WaterHive Active Heating and Hot Water

The Hive Active Heating and Hot Water offers a range of features which put you firmly in charge of your comfort and heating bills.

Features

No longer will you need to worry about wasting cash when you heat up an empty house. This uses smart geolocation to recognise when you have left the property. Should you have forgotten to switch it off, you will receive a reminder to turn it off via the mobile application, although some users found this feature isn’t always reliable.

The ability to control your thermostat when you are away from home is a great benefit. By using the dedicated Hive app, you can conveniently turn your heat or hot water on, off or set a timer, all from your mobile device.

A few people thought the mobile application could be easier to use, but the majority of users didn’t have any problems.

The Hive thermostat is designed for those who have busy schedules. Users can program as many as six time slots into the thermostat so that it will always be ready when you are. If you get held up at work or decide to come home earlier than planned, you can simply delay or boost it from the app.

Furthermore, with Wi-Fi controls, you have the ability to heat certain ‘zones’ of your home and not others. For example, if you are spending all day downstairs in the living room, simply tell Hive to turn off the upstairs heat to save money on your bills.

It is battery powered and compatible with all existing boilers and energy suppliers. Hive can also be attached to radiators as required.

This smart thermostat can be easily connected to Amazon Alexa, IFTTT and Google Assistant devices for voice-activated functionality. However, some people complained that the batteries didn’t last long.

Pros:
  • Smart Geolocation
  • Compatible with other smart home assistants
  • Controllable via the Hive app
  • Multi-zone control
  • Able to pre-program up to 6-time slots per day
Cons:
  • Batteries need frequent replacing
  • Geolocation isn’t always reliable
  • Phone app could be easier to use

3. Netatmo by StarckNetatmo by Starck

The Netatmo claims to be capable of reducing household energy bills by as much as 37%. Just like previous smart thermostats we have seen, this model offers a convenient way to control the heat via a special smartphone application.

Features

The thermostat itself is packed with intelligent features to manage the heat. One of the most impressive is the ‘Auto Adapt’ function. This means that the Netatmo monitors both the temperature outdoors, as well as within the home, to best determine the optimum time to switch it on.

If you are going to be off on holiday, this smart thermostat also offers a useful ‘holiday mode’. All you need to do is enter the date and time you are leaving and returning, it will switch on and pre-heat your home ready for your return.

However, one downside of this device is the lack of a geolocation feature. Unlike other models, the Netatmo Smart Thermostat cannot recognise when you have left the house, so you must remember to switch it on/off via the app yourself.

This has a power-saving E ink display which displays the set and current temperatures. It extends battery life, but also means it is hard to read in low light.

If you use Siri, Amazon Alexa, or Google Assistant, you can connect the Netatmo to these devices to enable convenient voice assistance.

Pros:
  • Reduces household bills by up to 37%
  • Smartphone app
  • ‘Auto Adapt’ function
  • Holiday mode
  • Connects to other smart home devices
Cons:
  • Screen isn’t illuminated
  • Product manual is confusing
  • No geolocation feature

4. Salus IT500Salus IT500

The SALUS IT500 is another impressive choice of internet thermostat for your home.

Features

Showcasing a completely wireless, easy-to-install design. It can be bracket-mounted onto a wall, or placed onto a table or other unit as desired. The wireless installation also means you can move it around your home should you wish to.

Featuring a stylish, modern display, the black touch screen shows the date, time, current temperature and access to other important settings in sleek white digits. The thermostat uses two easy to obtain AA batteries, which users said lasted well.

This offers multiple built-in programs, such as a weekday/weekend program or a 7-day rolling program. These can be changed and personalised as required to suit the users’ lifestyle.

If your plans change, you can override these settings using a smartphone, laptop or tablet device. Simply log into the mobile application to effortlessly control the heat and hot water from anywhere in the world. It is quite basic, but it is still incredibly useful if you are going to get home earlier, or later than expected.

Furthermore, multiple users can access and control it via the phone app. This function is clearly beneficial if one resident doesn’t have a phone signal or has run out of battery.

Some users complained that the thermostat disconnects from WI-FI often, but this is easy to rectify.

Pros:
  • Stylish design
  • Wireless install
  • App controllable
  • Multiple user compatible
  • Touchscreen
Cons:
  • Phone app is basic
  • Disconnects from Wi-Fi regularly
  • No boost feature

5. Honeywell T6RHoneywell T6R

With the Honeywell T6R, you can relax with the knowledge that your home will always be at the perfect temperature for you, whilst also saving you money.

Features

It offers intelligent TPI control, which makes sure that your boiler only fires up for the minimum period of time needed to keep your preferred constant temperature.

There is also an ‘optimum start and stop’ function, which enables both your boiler and the thermostat to work together more economically, thus reducing your bills.

Depending on your lifestyle, it features a range of programmable schedules to fit around your needs. Single day, 7-day and 5/2 day schedules are available, as well as the option of up to 6 time settings for each day. This means that the Honeywell T6R can accommodate even the most changeable of lifestyles.

Should you be away from home and need to change the schedule, you can simply use the Honeywell Home app on your phone to adjust it from wherever you may be.

Alternatively, you can make use of the location feature which will automatically turn it on when you reach a certain distance from your house.

Furthermore, this is compatible with Amazon Alexa, Apple Home Kit, Google Home and IFTTT.  So you can control it with your voice if your phone is out of reach.

Pros:
  • Intelligent TPI control
  • Optimum start and stop function
  • Controllable via app
  • Smart location feature
  • Compatible with other smart home systems
Cons:
  • Must be plugged into the mains
  • Difficult to self-install
  • Often disconnects from app

6. Salus RT510BCSalus RT510BC

The RT510BC Wireless has a minimalist, contemporary design which will blend well into any home.

Features

This wireless thermostat is super-easy to program and comes with a dedicated RF boiler receiver module which is almost effortless to install in most existing boilers.

Its thermostat makes controlling the heat a breeze. No longer will you have to go up to the boiler and manually change the settings. With this device, you can conveniently control the temperature directly from the wireless thermostat, wherever you choose to place it.

Fully programmable, it offers holiday mode, boost setting and sleep mode functionality. It also has built-in frost protection, so it will automatically ensure the temperature never drops too low as to allow your pipes to freeze.

The plug-in boiler receiver module has a 30-metre range, which is almost certain to be enough for the vast majority of households.

Furthermore, the receiver has an LED light indicator, which makes it very easy to check if it is connected and working as desired.

Pros:
  • Wireless
  • Compatible with most existing boilers
  • Easy to install
  • Frost protection
  • 30-metre range
Cons:
  • Some people found the programming instructions confusing
  • No mobile application control
  • Reverts to default settings if batteries are out for 10 seconds

7. Drayton RF601 with Digital DisplayDrayton RF601

The Drayton RF601 with Digital Display is another example of a radio frequency solution. Its accompanying boiler receiver is easy to install without any fuss, and the simple range of settings work very well.

Features

Similar to the previous Salus model we have just seen, the Drayton RF601 doesn’t have any internet compatibility. Therefore, this is a good option for those who may not be concerned about having the ability to control the heat from outside their home.

Instead, this product offers on/off settings, and a maximum/minimum temperature control. This is non-programmable, so the user will have to remember to switch it on and off as required. It is more like a remote control thermostat than a smart thermostat.

With regard to design, it offers a sleek, clean design which is very subtle. The LCD screen is rather small and appears dwarfed by the large dial underneath. In the middle of the dial, there is a big button for confirming the menu selection or quickly adjusting the temperature if you are leaving the house.

Pros:
  • Comes with a receiver
  • Easy to install
  • Intuitive to use
  • Large dial
  • Simple settings
Cons:
  • Feels a bit flimsy
  • No smart compatibility
  • Quite expensive for the features offered

How To Choose A Smart Thermostat

We love the feeling of warmth, especially during the winter season. Having a soak in the tub, taking a hot shower or a drinking warm cocoa are some ways we enjoy it. Wouldn’t it be nice if your entire home felt just as toasty? Here are some tips to keep in mind when choosing a smart thermostat that will make your home warm during those frosty months.

Power Source

The power source which your new thermostat will use is an important consideration. For example, if it is mains powered, you are likely to be limited as to where you can place it.

On the other hand, while battery powered thermostats are portable, they may require the batteries to be replaced fairly frequently.

Furthermore, with battery powered thermostats, you will need to be conscious of the possibility that the batteries can run out while you are not at home. If you are out of the house often, a mains powered option is probably best.

Ease of Use

best wireless thermostatThe whole purpose of smart and wireless thermostats is to make our lives easier. Therefore, the usability of your new thermostat should be a key aspect in your decision.

Many smart systems are programmable and come with dedicated smartphone apps, which offer the ability to conveniently adjust the heat from anywhere in the world. However, the quality of these varies, with some being much simpler and intuitive to use than others.

Other smart thermostats are able to intelligently adjust the schedule for you based on your activities. These are a great option if you have an irregular lifestyle and are rarely at home the same time every day.

Last, but by no means least, you should check smart thermostat reviews to see how easy it is to install the thermostat. Some models can be set up in a matter of minutes, while others will require a visit from a professional.

Furthermore, in the case of older heating systems, some smart and wireless thermostats may not be compatible, so be sure to check this before buying.

Geolocation Functionality

Clearly, it is a gross waste of energy and money to keep your home heated when there’s no one in. Luckily, many smart thermostats offer a clever geolocation feature which works via your mobile phone.

The app will communicate your location to the thermostat, so if you have left the premises, it will automatically be turned down or switched off. A benefit of this feature is that it often means you do not have to remember to log in to adjust it.

Additionally, the geolocation function can often be used to auto-trigger it when you are a certain distance from home. This is sometimes also referred to as ‘geofencing’. For example, if you leave work earlier than planned, the thermostat will make sure you walk into a warm house no matter the time.

Device Connectivity

If you have other smart devices in your home, it makes sense to choose a Wi-Fi thermostat which can be integrated with them.

Many smart thermostats can be connected to common home assistants such as Amazon Alexa, Google Home or Apple Home Kit.

The best thing about this is the convenience of being able to adjust it, without even having to pick up your phone, let alone walk to the thermostat itself. Simply use voice activation with your smart assistant and give it the required directions, without having to break away from whatever you’re doing.

Conclusion

Nest Learning smart heating system.jpgWe are sure that any of the wireless thermostat reviews we have featured would make fantastic additions to your home. But if we had to choose the best wireless thermostat of them all, it would have to be the Nest Learning 3rd Generation.

We were seriously impressed by the range of features it had to offer. Not only does this internet thermostat actively learn your temperature preferences and day-to-day schedule, but it also analyses how efficient your insulation is, and adjusts its timings to suit.

Additionally, should you leave the house at an unusual time, it will recognise that you have gone, immediately reducing the heat to save you money.

As if all of this wasn’t amazing enough, it can be conveniently controlled from anywhere on the planet with a Wi-Fi connection, thanks to an easy to use app.

Overall, we think that the Nest Learning 3rd Generation is by far the best smart thermostat on the market right now.

Additional Resources