With the ability to control your heating from your phone, you will never have to heat an empty home again and can turn it on ready for you coming home.

This model could save you up to £130 per year, and you don’t even have to change your boiler or energy provider. All you need is a Hive Hub, which is also required for all other Hive products. It allows your thermostat to be controlled remotely, and all you need to do is connect the receiver close to the boiler to get them all to communicate.

There is also a frost protection setting, which is set to monitor your pipes once it hits below 7°C, although you can change this in the settings. It will also take the necessary action when heating, such as turning on for a lower temperature for longer to protect your heating.

The hot water boost schedule is great if you always have a shower in the morning and don’t want to hang around while the water heats. You can set it to prioritise the water temperature without making the boiler overwork.

Want to schedule the heating to come on at 6 am in the morning for your bedroom and the kitchen but not the kid’s bedrooms or living room? Set up a Hive Multizone system, where you can control three different areas of the home with separate thermostats.

Geolocation technology will alert you if you’ve left the house but left the heating on, or are coming back and the temperature is lower than your set minimum so that you can take the relevant action.

Smart home temperature control with energy saving, the Nest 3rd Generation includes a home report function which lets you see how much energy you have used in a particular time frame and tells you how to save some extra.

If there are peak times when the energy gets too high, it will suggest ways in which you can reduce this to make it more plateaued throughout the day.

After just one week of installation, it gets to know your favourite patterns and learns to start automatically adjusting the heating to the way you like it. Eco mode can also sense when nobody is in the house, turning the heating off or down.

Control the thermostat from your smartphone, tablet or laptop when you are out to get the house ready for when you return. You are also able to control your water tank, heating only the water you need. The app lets you see who made changes to the system recently.

Farsight technology lights the thermostat up when somebody enters the room, so they can easily see the current temperature, weather or time. It also monitors this weather via the Met Office, so if it is cold or boiling outside, it can adjust the temperature accordingly.

It works with Amazon Echo and Google Home, but no Apple Homekit support yet.

With a large, clear display, choosing the correct settings and temperatures for you is very easy, with on-screen guidance to help you make the most of your thermostat too.

You have control over how it works no matter where you are in the world, as long as you are connected to a suitable internet connection. There is also the handy location services, which pairs the thermostat up with the app and analyses where you are. If you’re out of the house, it can turn the heating off, and similarly turn it on if you are approaching home.

The T6 also includes several schedule settings to fit your lifestyle, such as 7 day, 5/2 day and single day scheduling with up to six different time settings. So whether your schedule is always the same day in day out, varies at weekends or you just don’t know what you’ll be up to, you can plan ahead.

It works with Google Home, Amazon Alexa, IFTTT and Apple HomeKit, with the ability to be controlled by a range of devices including iPhones and tablets. A great feature is that it can also be controlled from the large touchscreen as opposed to just WiFi, so if your internet cuts out or you drop your smartphone rendering it useless, you aren’t left in the cold.

As this is a starter kit, you have everything you need to get going, including the necessary bridge.

The TADO app lets you see what the current room temperature is, and adjust the settings to get it just right. It will work with most new and old heating systems.

The settings are also displayed clearly on the screen, and you can change them either through the app or through the actual thermometer – useful if you regularly misplace your phone or it is a bit temperamental.

It works with the big three voice assistants (Siri, Google Assistant and Alexa), making it even easier to control from the comfort of your sofa, or when you’re in another room. TADO will monitor the local weather forecast, heating less on a sunny day/more on a cold day, even if specific settings have to be overridden for efficiency.

Geofence technology will tell it when you’re approaching home and turn the heating on if needed, and it will also learn how fast it takes your home to thoroughly heat, so it becomes more prepared the more you use it. There is an adjustable radius setting.

There is the possibility to save 31% of your carbon footprint, and personally tailored reports will let you know what other actions you can take to save further. This could see a £200 annual saving per year.

With the ability to control this thermostat with your phone, tablet or PC, you will never be stuck from choosing what you want, when you want.

It is compatible with Google Assistant, Apple HomeKit, and Alexa, with the added benefit of being able to use it with Facebook Messenger too, simply by typing in your request.

The thermostat uses your answers to five questions (when you wake up, leave the house, come home and go to bed) to create a schedule that’s based on your lifestyle.

The Netatmo also learns about your regular habits and movements outside of these settings and adjusts its operations accordingly. It monitors the indoor temperature to ensure a constant is kept. So, you benefit from the fact that the right temperature is always ready and waiting for you.

Up to 37% can be saved on your regular heating bill with a smart thermostat, and you’ll also cut down your energy waste as you won’t have to leave the heating on when you’re out for when you get back. Every month, you will receive a personalised report on your usage, which will help you make different decisions on how to save money.

Installation is simple with most modern central heating systems but could be more difficult with older ones. Once this hard part is done, controlling is really easy from the app.

The cheapest smart thermostat we have reviewed, but this doesn’t take away its capability.

For a low price you get the thermostat, stand, batteries, receiver, gateway, ADSL cable and power adaptor all included, plus screws for wall fixing – no extra hassle required (apart from installation).

It will control your central heating and hot water, as well as underfloor heating if applicable. You can also choose two zone heating, in case you want to split your home in half and control each separately.

Accurate control means that if you set the temperature to be kept at a steady 20°C, it will switch on or off at 0.5° either side of this.

Unlike the other thermostats, there is no voice assistant integration with this Salus thermostat yet. So if you want to be able to tell Alexa to turn the heating on, this isn’t the pick for you. But if you don’t have any smart speakers and just want a simple, standalone thermostat which has the added benefit of remote controlling, this is a good budget buy.

Automatic software updates keep everything in check and have resolved older problems such as there now being an easier to use app.

Suitable for combination boilers, this Drayton model is one of the most adjustable ranges available.

Available in heating only, heating and hot water, and for two or three extra room zones, you can have full control over what you heat and where. Boost your heat and set schedules through the Wiser Heat App, as well as there being an Eco Mode for saving that extra bit of energy.

It is one of the best options for keeping your temperatures constant across the system and showing accurate readings.

If you want the full system with the radiator valves too, they are one of the cheapest options on the market (partly due to the lack of screen or display – you need to check heat through the app). This makes it a great choice if you want to turn all your radiators smart but are worried about breaking the bank.

The instructions are also some of the easiest to read out of all reviewed, which is a plus if you are just starting out in the smart technology world and need a little bit of assistance.

It won’t learn your habits or check where you are, but for ease of control and timings, it is a great option.

An additional product for the TADO smart heating system. It will work with the majority of upright fixed radiators, with both horizontal and vertical mounting options available. Simply unscrew the existing valve and replace with TADO’s.

You are also able to buy the radiator components as part of a starter kit if you don’t already have the central heating thermostat fitted, or if you get your heating from a district boiler and don’t have your own.

The dial at the top of the thermostat will alter temperature, activates the display and lets you change the mode. The screen shows whether it is on ‘home’, ‘away’ or ‘manual’ mode, as well as the set temperature.

Smart climate assistant will monitor the temperature and feel of the room, adjusting how the thermostat works in accordance. TADO’s app will let you control all of the products from anywhere, adjusting everything separately or together as a package.

If you’re bothered about noise, there is no need – they let out a small whir when changing temperature, but nothing too disruptive.

It is worth saying that a lot of people report that the adaptors don’t work with Danfoss radiators – make sure you are aware of your model and brand before you buy. And, as the thermostat is close to the heat, the reading can sometimes be off and higher than the room temperature.

Compatible with Alexa.

With the ability to set timings, you can rest assured you can sleep in ideal 18° coolness but step into a cosy bathroom at 6 am the next morning.

You can set the desired temperature to a precision of +/- 0.5°C directly on the radiator thermostat, or per WLAN via the dedicated app. Up to ten thermostats can be installed for each ‘scenario’, i.e. ten per room through the app.

It must be used with the Bosch Smart Home controller, but if you have this, you are good to go. There is even a QR code on every thermostat which you can scan for an easy installation guide. The app has a really clean, clear interface for ease of use.

There is the ability to purchase an entire climate control kit, which includes two radiator thermostats as well as one door/window contact and the necessary controller. This makes it one of the most adaptable home hubs available on the market.

A frost protection guarantee detects temperatures under 4°C, taking the necessary action and adjusting the temperature.

While it does well to control temperature, there are still a few things that let it down, namely the restrictions in temperature setting. You can’t see the current room temperature in the app or on the thermostat, only the set temperature. The adjustable on/off time option only allows one set temperature, too – not ideal if you prefer it to be warmer in the mornings than evenings.

However, it does periodically open the valve to protect against calcification, keeping your heating system in check without you having to.