Honeywell T6 Wired Smart Thermostat – Works with Amazon Alexa
£10,192.00
Price: £10192
(as of Jun 02, 2025 02:59:40 UTC – Details)
From the manufacturer
The Honeywell Home T6 Smart Thermostat is a next-generation, programmable thermostat made to fit your life. Take comfort in an innovative thermostat that adapts to your schedule, helps save energy, and makes your home smarter.
Simple to set up, straight out-of-the-box.
Save money on heating with adaptable, intuitive programming.
Energy efficient and more Earth-wise than older or more basic thermostats.
Full control via the thermostat’s simple touchscreen, even without the Honeywell Home App.
The T6 thermostat knows how long it takes to get your home to the right temperature, removing the guesswork and saving you money. Ask for 21 degrees at 7 a.m., no problem, the T6 works out how to get there, whatever the temperature is outside. The T6’s intelligent comfort control helps maintain the desired temperature when you need it. So your home will always be comfy and cosy, whatever the weather.
SIMPLE TOUCHSCREEN INTERFACE: The T6 touchscreen makes scheduling, changing and overriding temperatures easy with a large, clear display and intuitive on-screen text guidance. Temperature can be adjusted in 0.5 degree increments. The thermostat display is backlit all the time, providing low-level nighttime illumination and temperature display at all times. You can set the light level via the touchscreen.
TAKE CONTROL, WHEREVER YOU GO: Pair with the Honeywell Home app, which gives you complete control over your home heating. Control your thermostat via smartphone or tablet.
INTUITIVE GEOFENCING: The T6 adapts to your lifestyle using innovative geofencing technology. It knows when you’re away, helping to save energy. It also knows when you’re just around the corner — and ensures your home is at the perfect temperature when you arrive.
SAVE MONEY: The T6 offers a number of optimisation features, including “optimum start and stop” boiler control, allowing the thermostat and boiler to work more efficiently together. ERP Class 5, 3%.
SMARTER CONTROLS: Built-in TPI (Time Proportional & Integral) controls simply switch current supplied to the boiler on or off at different times. The T6’s integrated system ensures the boiler fires for the minimum amount of time required to maintain the required temperature set point, making heating your home even more efficient. The T6 also includes frost detection protection, ensuring the pipes will not freeze if the temperature dips too low.
ADJUSTABLE & ADAPTABLE: We know life is unpredictable. That’s why you can choose either 7-Day Scheduling or change things remotely if your plans change.
T6 MODEL OPTIONS: The T6 Series features three models; the wired T6 and the wireless T6R, and the T6R-HW that is wireless and also includes hot water control.
Installation Basics
Compatibility
Is the T6 suitable for my property and will it fit my heating installation? The T6 and T6R Smart Thermostats are suitable for most water-based heating systems, including combination and system boilers, either gas or oil-fired. They can also be used as part of S-plan and Y-plan system. The T6 receiver module can be used with ON/OFF boilers and it has OpenTherm capabilities offering boiler modulation. Some boilers with modulation functions have restrictions on what connections will work and therefore we recommend contacting the boiler manufacturer.
Do I need WiFi to operate my thermostat? The thermostat will work perfectly without WiFi. It is not required for setup or programming. You will need internet connection to be able to remotely control your heating system. Honeywell Home’s Connected Thermostats use a proprietary communication protocol that work on the 868Mhz band. This should not interfere with any other wireless devices. The T6 will work with any wireless 2.4 GHz router and is easy to connect to existing WiFi networks.
Installation
The T6 lets you do it yourself. Easy and fast to install, the Honeywell Home T6 offers many features to simplify setup. These include a flip-up wiring bar for easy access, clearly labelled terminals, and strain relief for simplified, secure wiring. Before installing, turn off power for safety and remove your old thermostat. Carefully review the wiring diagram included in your instruction manual.
FITTING THE RELAY BOX: This box contains connections for your power, boiler, and thermostat. Choose a suitable location near your boiler and use proper wall mountings for your wall materials.
CONNECTING THE T6 TO YOUR WALL: Once your old setup is removed, the existing cables will attach to your new T6 thermostat. Feed them through the wall panel to begin and align the wall plate. Attach the T6 thermostat face to the wall plate.
SETUP & CONFIGURATION: Once installed, the Honeywell Home T6 features an intuitive and guided setup that can be accessed from the Honeywell Home app, or the thermostat itself. Follow the prompts to begin setting up your upgraded home temperature control system.
Connecting with Smart Brands
Apple HomeKit & Apple Watch
The T6 Smart Thermostat works with Apple HomeKit, so you can efficiently manage your smart home using Apple’s voice assistant, Siri. You can take comfort knowing you can control your home comforts, now and in the future.
Control your T6 thermostat from your Apple Watch, with the Honeywell Home app, wherever you are. Interact with your thermostat quickly and easily from home or away, and control the temperature in your home, at any time.
(Note: Using Apple devices requires iOS 8.1 or later)
Amazon Alexa
Take your home comfort to the next level with Amazon Echo. The T6 Smart Thermostat works in perfect harmony with its cloud-based voice service, Alexa, so you can easily set the temperature, or turn the heat up or down using voice commands.
Google Home
Your T6 Smart Thermostat connects seamlessly to Google Home and its voice activated Google Assistant, so you can set the perfect temperature using simple voice commands. Just start with ‘Ok Google.’
IFTTT
With IFTTT, you can automatically link and manage your T6 Smart Thermostat by creating simple Applets. These can be turned on and off, and link multiple smart devices, giving you flexibility and infinite possibilities.
Smarter Connection
The Honeywell Home app allows you to connect, control, and monitor your smart devices.
One-touch dashboard.
Alerts to let you know what’s happening in your home.
Geofencing provides location awareness to respond to your needs throughout your day.
Control and adjust your T6 thermostat with the Honeywell Home app. This includes adjustment of set points and schedules, override management and automated synchronisation with the thermostat. At the beach. In the air. At your desk. Take comfort knowing you can control your T6 Smart Thermostat simply and easily — anywhere, any time.
To get you started quickly, the Honeywell Home app will guide you through the simple set up, step-by-step.
Compatible with Android and iOS, the app puts you in charge of your T6 Smart Thermostat, so you’re always in control of your home comforts. Note: The thermostat cannot be operated from a computer or laptop.
Link multiple smartphones and tablets to your thermostat for all the family. The app also supports multi-zoning for multiple thermostats and zones.
The Honeywell Home app can be downloaded on your devices. It is available in the App Store or on Google Play. Make the Honeywell Home app your app for controlling all of your connected Honeywell Home devices anywhere, anytime.
Simple touch-screen interface. The T6 touch-screen makes scheduling, changing and overriding temperatures easy with a large, clear display and intuitive on-screen text guidance.
The Honeywell Home app gives you complete control over your home heating wherever you are, including schedules and automated synchronisation with the thermostat.
Using the location features on your smartphone, the T6 communicates with the Honeywell Home app to determine when your home is vacant or when you are on your way home adjusting the temperature automatically.
Scheduling to suit you. The T6 features a choice of schedule settings to fit your lifestyle, including 7 day, 5/2 day and single day scheduling with up to 6 different time settings per day.
Apple Homekit ready. The T6 is home kit enabled meaning it can be controlled using an Apple device (requires iOS 8.1 or later), as part of a suite of home kit compatible products.
The T6 also works with Google Home and IFTTT
Customers say
Customers find the thermostat easy to install, particularly with combination boiler systems, and appreciate its excellent temperature control, with one customer noting it doesn’t fluctuate. The device receives positive feedback for its functionality, appearance, and value, with customers describing it as easy on the eye to look at and well-made. The WiFi connectivity receives mixed reviews.
AI-generated from the text of customer reviews
Mark Chisholm –
Brilliant Switch
The world of ‘smart’ house heating controls is huge and confusing – and I include myself in this even though as a Marine Chief Engineer I have worked on high voltage construction vessels that would confuse military experts.
The market seems to boil down to two types. The first type is probably the most common which is the type that simply starts and stops your boiler according to the settings along with all the other bells and whistles chucked onto it. The other type is more sophisticated and also relies upon individual radiator controls.
Both of these do not entire work for those of us who had a dual zone plus water tank system fitted.
There are also other issues of course. If you add up the cost of WIFI rad valves across your house one has to question the bonkers claim that these will save you money. Honestly, even after fitting this I’m 100% certain I will never get back the money I’ve spent on the miniscule fuel savings.
I’ll digress here a bit as well. I’m a marine engineer and as such I’ve worked on VLCC steam ships in my yoof. Steam ships are basically big thermodynamic experiments that use epic amounts of fuel. We would easily burn through 150 tonnes a day, so any saving no matter how small is easily seen and useful. And this is how we do it. Turn the temperature down. No, really. What we did was open up the main steam valves fully. 100% open. This is important because throttling is really inefficient. Then we dropped the main boiler pressure down to match the turbines with the control valve fully open. This is the most efficient way of not using fuel.
If you take a house, every time you fit a thermostatic valve you are throttling water and this is inefficient becasue in order to maintain control temperature you need a high water temperature. And heating water is a logarithmic curve. The higher the temperature the more fuel you need un an upward curve. This is why underfloor heating is efficient. A large area with water heated to 36c not the 65c for rads.
So what I do is not throttle my rads. Instead I have turned my water temp down to 57c which is above the level required for killing legionnaires but requires significantly less fuel to maintain.
Anyway, going back to controls I could not find anything that met my needs exactly because a there are no dual zone + water smart systems.
What there is, is this. Becasue basically what all these smart controls come down to is a remote controlled switch and this is just that. A typcial dual zone system consists of a dual zone controller – which simply puts power onto the mechcanical thermostat at set times. This thermostat will then open up the zone valve which will send a signal to the boiler to start.
So, if you have a dual zone system, ignore the blurb in the Honeywell instructions, because its about direct boiler control and, well you can’t do that immediately.
What I did was install this in place of the thermostat in one zone and using the 240v feed to the controller power the hub unit – which the instructions say to mount close to the boiler and which I didn’t. I of course played around with this on my bench to make sure I had it right then temp mounted it once I figured the best way to do it. See the pictures.
You then set your original controller to 24/7 on for the zone this is controlling. From then on, this smart controller will control the temperature to your settings which you program in. Of course if like me you have got one zone working on this then inevitably you will want to do both and that means another controller. Once I do that I’ll rewire the system and remove the original controller complete.
Now, the only bugbear I had was setting this onto my wifi network which took me an age. The blurb is not 100% clear and I was getting frustrated. Bottom line is that you have to use your phone/tablet to log onto the Honeywell wifi – then step back using the back button. It is noted but easy to miss so read very carefully the information and carefully check your app. It does work well once you understand it.
Anyway, once you are on line you can do the usual. Set up a calendar for on/off, geographic operation which means it will start up or stop depending how close you are to your house and of course allow manual remote control.
A quick word about geographical operation. If like me you have a lousy mobile signal at your house you might have fitted a mobile booster that uses your internet. Which also means your location isn’t your house, so you have to go and find an actual signal close to your gaff to set that up.
Once fitted its a neat system that is easy to use looks smart and allows excellent control.
M. BERNARD –
Excellent temperature control and provides the best of both worlds!
This Internet enabled thermostat has many great features but two key ones are:
+ Works with both Apple HomeKit and Amazon Alexa. (Great for families with both Apple and Android devices.)
+ Can be fully programmed and controlled directly via the thermostat touchscreen or via the Lyric App.
Another great feature, which is as a result of the second key point, is the unit will remain fully functional as a programable thermostat even without an Internet or Wi-Fi connection. Few other units can say the same, especially many of the other popular models on the market.
The unit is an ideal replacement for those with a combination boiler and can eliminate the current time clock and directly replace the current thermostat. However, even those with a fully pumped system (valves control if the boiler heats the radiators or the hot water in a cylinder) may appreciate this unit if they are just replacing a thermostat and don’t need to control the hot water separately (still controlled by an existing time clock). This was my situation partly driven by my wife wanting to be in full control of the heating but not having to rely on an App. Those who have technophobes in the family will appreciate this point!
Wiring up any thermostat is not a simple task unless you are competent or employ a electrical or heating engineer. Although on the face of it this Honeywell looks complicated it is reasonably straight forward if you know what you are doing. I have added a image of how I connected my unit and this may assist others in installing their own unit. Providing your current thermostat has three wires (must include a Neutral wire) then replacing the existing thermostat with the provided control box is easy, especially if you opted for the T6r wireless version. If the wired regular T6 then you will need a bit more work to run some extra connections but again this is not too difficult, especially when the thermostat is wired to a wiring centre. Honeywell supply additional wiring diagrams on their website which may prove useful.
Once installed and powered up the setup process, using the App (on a phone or tablet), is quite simple and I had it configured with my desired switching times and temperatures quite soon. I noticed not long after it was setup a firmware update was pushed to the thermostat via the Internet, so it is nice to see updates are automatic. I did not try but I think you could make the setup only via the thermostat touchscreen but of course without any Internet or Wi-Fi setup included.
Once I showed my wife how to use it via the touchscreen she actually commented as how it seemed better to use and see what was going on than our old programmable thermostat. I then added the Lyric App to her Android phone and showed how simple it was to use. She said she would probably not use it but a few weeks later she was out and wanted to check she had turned the heating down after she went out so used the App and confirmed the setting! Now she is a convert to Internet enabled thermostats!
We also like the fact the thermostat display is backlit all the time and have found it provides great low level nighttime illumination in the hall to prevent accidents in the dark (you can set the light level via the touchscreen). The icing on the cake has been that the temperature regulation has been far better than the old thermostat, which of course is the primary function of the unit.
Overall the Lyric T6 has provided all the features I wanted and would recommended it to anyone. Just be sure to read all the literature available to ensure you know it will work with your current system and you have the skills to fit or employ someone who does.
Kdelta –
Dosnt work with HomeKit any more 2021.
Unreliable connection to Apple home hub. Worked fine for first year but Honeywell have not kept up to date with changes to home hub. If you look on Reddit there are hundreds of unresolved complaints. Honeywell blame Apple despite plastering their boxes with HomeKit compatible. Would not recommend. Also I suspect not very energy efficient. Just fires up boiler every 10/15 mins to maintain temp. Costly approach. Shame but Iâd go with another company who does what they are doing with technology.
Vincent –
Je ne suis pas chauffagiste, et il est très facile dâinstaller et à utiliser
hubert sehnal –
Bin begeistert! Mit geofence, erstklassige und in Zukunft unverzichtbare Energieeffizienz!
Funktioniert 100%, zum montieren leicht, einfach zum bedienen!
Mauro –
Un ottimo prodotto, lo posso tranquillamente consigliare. Non è wi-fi ma alla fine quando mai capita di portrsi in giro il termostato? Io l’ho cambiato per colpa del modem della Tim che si era parzialmente guastato e non faceva più funzionare il termostato, allora l’avevo reso, solo in seguito capii che era solo colpa del modem. Ho preso un Netatmo wi-fi ma alla fine visto che lo lascio sempre attaccato al muro, per il mio utilizzo questo era meglio perchè con la retro illuminazione si vedeva sempre perfettamente la temperatura.
laurent chardin –
Mais connexion délicate et difficile ensuite une fois réalisée plus de soucis et facile a paramétrer avec le téléphone ou sur le boîtier
Tomasz BiÅkowski –
Leuk ding. Makkelijk te installeren. Harmonogram werkt perfect, wifi verbinding is wel goed en makkelijk. Aanrader