Picture of the Google Home smart speaker, front view, with box open.

How to Connect Google Home to Honeywell Thermostat

We bought a Google Home smart speaker with the Google virtual assistant, and were pleased to learn today, that Google Home now supports connecting our Honeywell  Total Connect Comfort (TCC)  thermostat.

We checked under the smart home devices option in the Google Home App.  Honeywell is now listed there,  and it found our home thermostat we scanned for smart devices on our home network.  No problems entering our TCC account into Google Home.  We’ll detail how that’s done below.

Picture of the Original Google Home smart speaker, during booting, along with AC power adapter plugged Into wall outlet.. How to Connect Google Home to Honeywell Thermostat.
Original Google Home smart speaker, during booting, along with AC power adapter plugged Into wall outlet.

Google Home abilities for Honeywell’s collection of IoT devices is awesome, as it allows  you to issue voice commands through that intelligent speaker, to control the thermostat, and read out its current status as well as the indoor temperature readings.  Currently, the functionality seems a bit basic; you can read and set the current temperature on the thermostat.  But that’s all.  We’re hoping more functions for furnace control and status checking (like filter and furnace maintenance reminders) will appear soon.  We’re now going to run through how setting up this link works, now that they have developed it.





How to Connect Google Home to Honeywell Thermostat

Since we’ve owned the Honeywell RTH9580WF internet enabled thermostat, pictured next, for a year or so now, we’ve already set up an account at the TCC website. Thus, we won’t describe how to do that here, as account setup over there is easy to achieve by following the instructions at the TCC web site.  However, a TCC account is required by Google Home, as it is for the Amazon Echo Dot for example, in order to control your Honeywell TCC devices.  So, set one up, if you do not have one already.

We also assume that you’ve installed and set up your Google Home smart speaker with the Google Home App on your tablet computer.

Picture of the Honeywell thermostat RTH9580WF, home screen view.
Honeywell thermostat RTH9580WF, home screen view.

Find the Honeywell Total Connect Comfort Ability

1. Sign up for a Total Connect Comfort Account

To get started, you’ll need a TCC account.  So, as mentioned above, if you don’t already have one, head on over to the Honeywell portal website here, and create one.  Be sure to save your user Id and password, as you’ll need this information when configuring the Alexa Honeywell TCC ability below.

2. Run the Google Home App on your Mobile Device

We’re using an iPad Air computer tablet in this scenario.  This app is located on page three of our iPad’s home screen, although yours may appear in a different location, depending on how many apps you have installed as well as how you might have arranged them.

Picture of the Google Home App entry, as shown on the iOS home screen.
Google Home App entry, as shown on the iOS home screen.

Upon running this app, the Google home screen appears, as follows.

Picture of the Google Home App home screen.
The Google Home App home screen.

3. Find the Browse All   Link to Continue with How to Connect Google Home to Honeywell Thermostat

Scroll down the home screen until you see the   Browse All   link, as shown next.

Picture of the Google Home app, displaying its Home Screen bottom on iOS, with the Browse All link circled.
The Google Home app, displaying its Home Screen with the Browse All link circled.

4. Tap the  Browse All  Link  

Find this at the bottom of the Google Home screen, circled in purple in the previous picture.  The What Can You Do?  screen then appears.  On that screen, we’ve scrolled down the page until we found the   Control The Home  entry, as circled in purple.

Picture of the -What Can You Do- screen, with the Control the Home link highlighted.
The -What Can You Do- screen, with the Control the Home link highlighted.

5. Tap the  Add Device  Link 

See this shown in the last picture.  The Home Control   screen then appears, as pictured next.

Picture of the Google Home Control screen, with the Add Device button highlighted.
The Google Home Control screen, with the Add Device button highlighted.

6. Tap the + (Plus)  Button to Continue with How to Connect Google Home to Honeywell Thermostat

Find this pointed to by the purple arrow in the previous picture.  You then get the list of available device manufacturers whose smart devices you can add, as shown in the next picture.  The Honeywell ability now appears on this screen, as pointed at by the pink arrow in the next picture.

Picture of the -Add Device- screen, with the Honeywell ability highlighted.
The -Add Device- screen, with the Honeywell ability highlighted.

7. Tap the   Honeywell   Ability

Run the red Honeywell setup item on the  Add Device   screen, as shown in the previous picture.  The app then displays the Total Connect Comfort log In  screen as shown in the next picture, prompting you for your TCC account login Id and password.

Picture of the Google Home app displaying the Honeywell Total Connect Comfort login screen.
The Google Home app displaying the Honeywell Total Connect Comfort login screen.




Enter Your Honeywell Total Connect Comfort Account Information 

8. Enter your TCC Account Credentials

Enter the email address and password you created your Honeywell TCC account with, in the spaces provided.

Picture of the -Honeywell Total Connect Comfort Log In- screen, with entered TCC account credentials.
The -Honeywell Total Connect Comfort Log In- screen, with entered TCC account credentials.

9. Tap the  Sign In  Button to Continue with How to Connect Google Home to Honeywell Thermostat

If you’ve entered the user Id and password for a valid Honeywell TCC account, the TCC EULA page then appears, as shown next.

Picture of the Google Home app on iOS, displaying the -Honeywell Total Connect Comfort EULA- screen, with the -I Accept- button highlighted.
The Google Home app on iOS, displaying the -Honeywell Total Connect Comfort EULA- screen, with the -I Accept- button highlighted.

10. Tap the    I Accept  Button

You should then see the TCC Devices Registered Successfully  screen display briefly, as shown next.

Picture of the -Honeywell Total Connect Comfort Device Registered Success- screen.
The -Honeywell Total Connect Comfort Device Registered Success- screen.

11.  Press the Red  Click this link  Link to Continue with How to Connect Google Home to Honeywell Thermostat

Do this if you are not automatically redirected back to the Google Home app, and the  Select Rooms  screen, as shown next.

Picture of the -Honeywell Assign Rooms- screen, with Edit link highlighted.
The -Honeywell Assign Rooms- screen, with Edit link highlighted.

12. Press the   Done  Button

Press   Done   if you do not want to associate your thermostat with a room at this time, you may press the   Done   button in the top right corner of the above screen and skip ahead to step 16 below.

13. Tap the   Edit  Link

Find this pointed at by the pink arrow in the previous picture.

The   Choose a Room  screen then appears, and is shown in the next picture.

Picture of the Google Home App displaying the -Honeywell Room Choices- Screen, with the -Kitchen- Room Choice Highlighted.
The Google Home App displaying the -Honeywell Room Choices- Screen, with the -Kitchen- Room Choice Highlighted.

14. Tap the Radio Button for the Room Name to Assign your Thermostat

We’ve chosen the  Kitchen  room for our thermostat in the previous picture.





15. Tap the Left Arrow (<-) at the Top Left Corner of the Screen

Doing this updates your room choice for the current thermostat, and returns you to the  Assign Rooms  screen, as shown next.  Note that the room associated with our thermostat has changed to   Kitchen.

Picture of the Google Home app on iOS, displaying the -Assign Rooms- screen, with our new room choice, Kitchen, applied and highlighted.
The Home app on iOS, displaying the -Assign Rooms- screen, with our new room choice, Kitchen, applied and highlighted.

16. Tap the  Done  Link   

Find this in the top right hand corner of the screen.

The  You’re All Set   screen then displays, as shown in the next picture.

Picture of the Home app on iOS, displaying the Honeywell -You're All Set- screen, with the -Got It- button highlighted.
The Home app on iOS, displaying the Honeywell -You’re All Set- screen, with the -Got It- button highlighted.

17. Tap the   Got It  Button

This returns you to the  Home Control   screen, which now shows your thermostat with your chosen room location for it, as displayed next for our case.

Picture of the Google Home app displaying the -Home Control- screen, showing our added thermostat.
The Google Home app displaying the -Home Control- screen, showing our added Honeywell thermostat.

If you see your thermostat listed, then all is finished, and you can no begin speaking commands to Google Home. Some of the commands that might work follow in the next section.

18.  Done with How to Connect Google Home to Honeywell Thermostat !





Example Google Home Commands for Controlling Honeywell Thermostats

    • Okay Google, raise thermostat temperature.   Raises thermostat setting by several degrees.
    • Okay Google, raise thermostat temperature five degrees.   Raises thermostat setting by exactly five degrees.
    • Hey Google, lower thermostat temperature.  Lowers thermostat temperature setting by several degrees.
    • Hey Google, lower thermostat temperature four degrees.  Lowers thermostat temperature setting by precisely four degrees.
    • Okay Google, set thermostat temperature to 74 degrees.  Sets thermostat
    • temperature to 74 degrees.
    • Okay Google, what’s the current temperature inside?   She then speaks the thermostat’s current (indoor) temperature reading.

Note that the Honeywell TCC ability on Google Home appears to not currently support questions that ask for some status aspects of the thermostats (humidity, current program settings, status of furnace fan, et al).  We hope that such questions can be asked of Google Home in subsequent releases of the Honeywell ability.  Any ability offering should be able to respond appropriately to the following questions.

    • Okay Google, what is the current thermostat indoor humidity? 
    • Hey Google, is furnace fan on?
    • Okay Google, read the thermostat program schedule.

Finally, we’re happy to see this initial Honeywell ability on Google Home, which hopefully, will improve and expand rapidly.

Other Posts About the Honeywell Thermostat

    1. How to Restart Honeywell Thermostat
    2. Honeywell Thermostat Wiring Instructions
    3. How to Turn Off Permanent Hold on Honeywell Thermostat
    4. How to Setup WiFi on Honeywell Thermostat
    5. Honeywell Thermostat Says Heat On but No Heat

Other Posts About the First Google Home Speaker

    1. Factory Reset Google Home Instructions
    2. How to Adjust Bass and Treble on Original Google Home Smart Speaker
    3. Google Home Bluetooth Speaker Pairing Instructions
    4. How to Turn On Bluetooth Pairing Mode in Google Home Smart Speakers
    5. Google Home Power Supply Specs for the Original Google Home Smart Speaker

Related Posts to How to Connect Google Home to Honeywell Thermostat

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    4. Connect Google Home Mini to Bluetooth Speakers, How To
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References for How to Connect Google Home to Honeywell Thermostat

    1. Google Assistant Official Page
    2. Honeywell Total Connect Comfort Website

Revision History

    • 2021-08-20: Shortened the tags and internal links lists.
    • 2019-04-07: Added key word targeting, subheadings, and more tags.  Removed ad code and fixed some typos.
    • 2017-01-26: Changed content to reflect Google’s addition of the Honeywell ability recently.  Also, updated tags list.
    • 2016-12-27: Added more links to the Related Posts section.
    • 2016-12-26: Originally published.