Screenshot of the Google Home app on iOS, displaying its device home page for a Honeywell thermostat that reads 74 degrees F.

How to Connect Honeywell Thermostat to Google Home

In this post, we show how to connect Honeywell thermostat to Google Home smart speakers.  Now we have a Honeywell  Total Connect Comfort (TCC)  thermostat in the kitchen for a couple years now, and have enjoyed controlling it through the Google assistant with our voice.  So here’s what we had to do to set up the connection between Google Home and the thermostat.  Not too hard, although there are a few steps involved.  No fear though, because we list all of those steps below.

Picture of the Google Home smart speaker, front view, with box open.
Google Home smart speaker, front view, with box open. How to connect Honeywell thermostat to Google Home.




Before you Start with How to Connect Honeywell Thermostat to Google Home

Create a Honeywell Total Connect Comfort Account

To get started, you’ll need a TCC account.  So, 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 Honeywell TCC in the Google Home app below.

Since we’ve owned the Honeywell RTH9580WF WiFi thermostat, pictured next, for a few years now, we’ve already set up an account at the TCC website. Thus, we won’t go into how to do that here.  Why?  Because creating an account there is easy to do by following the instructions given there.

Get the Google Home App

The Google Home app is available in the App Store or Google Play for the respective iOS and Android mobile device platforms. You probably already have this if you’ve previously set up a Google Home speaker like the Home, Mini, or Max.

Set Up at Least One Google Home Speaker in your Home

We also assume that you’ve installed and set up your Google Home smart speaker with the Google Home App on your tablet computer.  We’re using the first Google Home, as pictured next.

Picture of the original Google Home smart speaker, front left view, sitting on desk.
Original Google Home smart speaker, front left view, sitting on desk. How to connect Honeywell thermostat to Google Home.




Link your Honeywell Thermostat to your Total Connect Comfort Account

We have the Honeywell RTH9580WF WiFi thermostat (pictured next) set up on our TCC account. It has been installed, powered up, linked to our home WiFi network, and added to our Honeywell TCC account.  Please see our   Register Honeywell WiFi Thermostat RTH9580WF Online   post for detailed instructions on getting Honeywell smart thermostats plugged into the internet.

Picture of the Honeywell WiFi Smart Thermostat RTH9580WF, home screen view.
Honeywell WiFi Smart Thermostat RTH9580WF, home screen view. How to connect Honeywell thermostat to Google Home.

How to Connect Honeywell Thermostat to Google Home

1. Run the Google Home app on your Mobile Device

We’re using an iPad Air computer tablet in this demo.  So we find this app on page four of our iPad’s  Home  screen, although yours may appear in a different spot, depending on how many apps you have installed as well as how you might have arranged them.

Screenshot of the iOS on iPad, displaying its -Home- page with the -Google Home- app highlighted.
iOS on iPad, displaying its -Home- page with the -Google Home- app highlighted.

Upon running this app, the Google app  Home  screen appears, as follows.  It shows a list of your Home devices currently set up on your Google account.

Screen shot of the Google Home app on iOS, displaying its -Home- page with the -Main Menu- button highlighted.
Google Home app on iOS, displaying its -Home- page with the -Main Menu- button highlighted. How to connect Honeywell thermostat to Google Home.

2. Tap the   Main Menu   Button

Find this control at at the bottom of the  Home   screen, near the right side corner, pointed at by the purple arrow, as shown on the screen face above.

Touching the   Main Menu  option brings up the  Main Menu   page, as shown next.  This page is where you can add home group members, set up multi room groups, and, access device settings.

Picture of the Google Home app on iOS, displaying its -Main Menu- page, with the -Settings- item highlighted.
Google Home app on iOS, displaying its -Main Menu- page, with the -Settings- item highlighted.




3. Touch the   Settings   Menu Item

Find   Settings   near the left edge of the screen, near the center, a little above center, on the  Main Menu  page. We pointed at it with the purple arrow, as shown in the last screenshot.

You then should get the   Settings   screen, as we did, as pictured next.  This page presents a list of your speakers and other linked devices.  It also gives you the option to add a device.  However, you currently can’t get to the option we’re after unless you scroll down the page a bit.

Picture of the Google Home app on iOS, displaying the top of its -Settings- page.
Google Home app on iOS, displaying the top of its -Settings- page. How to connect Honeywell thermostat to Google Home.

So, swipe up to scroll down this page until you see the  Add  item, as shown next.

Screenshot of the Google Home app on iOS, displaying its -Settings- page with the -Add Device- option highlighted.
Google Home app on iOS, displaying its -Settings- page with the -Add Device- option highlighted.

4. Touch the   Add Device, Speaker, Group, Service   Item

Touching the   Add Device, Speaker, Group, Service   option brings up the  Add   page, as shown next. Here’s where you can create a speaker group, add a new person as a member to your ‘home’, and where you set up devices.

Screenshot of the Google Home app on iOS, displaying its -Add- page, with the -Set Up Device- option highlighted.
Google Home app on iOS, displaying its -Add- page, with the -Set Up Device- option highlighted. How to connect Honeywell thermostat to Google Home.

5. Tap the   Set Up Device   Item to Continue with How to Connect Honeywell Thermostat to Google Home

Locate the   Set Up Device   option near the left edge of the screen.  It’s currently the first menu item, near the top.

Touching   Set Up Device   brings up the   Set Up   page, as depicted in the next screenshot.  Here, you pick what sort of device to set up.  Now you can choose to set up a native Google Home device (speaker, Chromecast, Etc.). Or set up a device that works with Google, like a Honeywell Total Connect Comfort thermostat.

Screenshot of the Google Home app on iOS, displaying its -Set Up- page, with the -Have Something Already Set Up- option highlighted.
Google Home app on iOS, displaying its -Set Up- page, with the -Have Something Already Set Up- option highlighted.

6. Touch the   Have Something Already Set Up?   Item

This brings up the  Add Devices   list  page, as shown next.  This screen lists all the device brands that Google Home currently can access and control.

Screenshot of the Google Home app on iOS, displaying the top of its -Add Devices- list of devices that work with Google Home.
Google Home app on iOS, displaying the top of its -Add Devices- list of devices that work with Google Home. How to connect Honeywell thermostat to Google Home.




7. Find the  Honeywell Total Connect Comfort  Entries

Swipe up to scroll down the  Add Devices  list, until you see the   Honeywell Total Connect Comfort   items, as pictured next.  Note that there are two versions of this ability; one for users in the USA, and the other for international users.

Screenshot of the Google Home app on iOS, displaying its -Add Devices- list of Google supported devices, with the US version of the Honeywell Total Connect Comfort ability highlighted.
Google Home app on iOS, displaying its -Add Devices- list of Google supported devices, with the US version of the Honeywell Total Connect Comfort ability highlighted.

8. Tap the  Honeywell Total Connect Comfort US   Ability

In this demo, since, we live in the United States, we tap the red  Honeywell Total Connect Comfort US  item, as shown in the previous picture, pointed at by the purple arrow.

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 on iOS, displaying the Honeywell Total Connect Comfort login screen.
Google Home app on iOS, displaying the Honeywell Total Connect Comfort login screen. How to connect Honeywell thermostat to Google Home.

9. Enter Your Honeywell Total Connect Comfort Account Information

Enter the email address and password you created your Honeywell TCC account with, in the spaces provided.  We filled in our Honeywell account data as shown next.

Picture of the Google Home app on iOS, displaying the -Homeywell Total Connect Comfort Log In- screen, with entered TCC account credentials.
Google Home app on iOS, displaying the -Honeywell Total Connect Comfort Log In- screen, with entered TCC account credentials.

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

If you’ve entered the user Id and password for a valid Honeywell TCC account, the TCC End User License Agreement 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.
Google Home App on iOS, Displaying the -Honeywell Total Connect Comfort EULA- Screen, with the -I Accept- Button Highlighted. How to connect Honeywell thermostat to Google Home.

11. Tap the    I Accept  Button

You should then see the  Select the Following Thermostat   page display , as shown next.

Screenshot of the Google Home app on iOS, displaying the -Select Thermostat- page, showing our choice checked, with the OK button highlighted.
Google Home app on iOS, displaying the -Select Thermostat- page, showing our choice checked, with the OK button highlighted.




12.  Touch the   OK   Button

Tapping   OK  on the   Select the Following Thermostat  page bring up the   Choose Device  page, as shown next, with a single entry in it, the thermostat we just added.

Picture of the Google Home app on iOS displaying its -Choose Device- page, with the -Thermostat- just added highlighted.
Google Home app on iOS displaying its -Choose Device- page, with the -Thermostat- just added highlighted. How to connect Honeywell thermostat to Google Home.

13. Select your Thermostat

Then, tap the thermostat shown that you want to set up by tapping it.

The little circle then fills in with a blue check mark, as shown next.

Screenshot of the Google Home app on iOS, displaying its -Choose Device- page, showing the thermostat we Just added marked checked, with the -Next- button highlighted.
Google Home app on iOS, displaying its -Choose Device- page, showing the thermostat we Just added marked checked, with the -Next- button highlighted.

14. Touch the   Next   Link

Tapping  Next  takes you to the   Choose a Home   page, as depicted in the next photo.  The Google Home app groups devices into virtual collections called homes.  These allow you to access various devices in each home grouping, which simplifies finding them when you have multiple home device groups.  This means that you can control smart devices at multiple locations, so long as you created a separate home for each place that has smart devices you wish to access.

Now we created only one home in our account currently.  Further, we do not need another.  So we won’t run through how to do that here.  Our only home thus, is checked by default (blue circle with a check mark inside it).  If you however, had two or more homes set up, at this point you’d have to choose which home group you wished to put the thermostat in.

Screenshot of the Google Home app on iOS, displaying its -Choose a Home- page with the -Next- link highlighted.
Google Home app on iOS, displaying its -Choose a Home- page with the -Next- link highlighted.

In this demo though, the home group we wish to add the thermostat to, is already checked.  So we can just move on to the next step below.

15. Tap the   Next  Link

Activating the  Next  Link takes you to the   Where is this Device?  Page, as pictured next.

Screenshot of the Google Home app on iOS, displaying its -Where Is This Device- screen.
Google Home app on iOS, displaying its -Where Is This Device- screen.

Here is where  you get to say in which room or area of your home you’ve installed the thermostat.  They give several pre-defined choices on this screen.  Plus you can create your own room name if you scroll down this page.  There, they give you the option to create a custom room name.





16. Assign your Thermostat a Room 

For us though, since our Honeywell thermostat is in the kitchen, we just tapped  Kitchen, as shown next.

Screenshot of the Google Home app on iOS, displaying its -Where Is This Device- page, with the -Kitchen- choice checked, and the -Next- link highlighted.
Google Home app on iOS, displaying its -Where Is This Device- page, with the -Kitchen- choice checked, and the -Next- link highlighted.

17. Touch the  Next   Link

Tapping  Next   takes us back to the   Home  screen.  Note that now, your thermostat should show up in your the device list given there, just as ours did, as shown next.  Remember that the first time we saw the   Home   page above, prior to setting up the Honeywell thermostat, no thermostat appeared.  But now, since adding it was successful, it does appear.

Screenshot of the Google Home app on iOS displaying its -Home- page, showing a thermostat highlighted.
Google Home app on iOS displaying its -Home- page, showing a thermostat highlighted.

18. Test that Google Home can Access your Honeywell Thermostat

You can see if the Google Home app can now read your thermostat temperature by tapping its entry icon on the Home page.

When you

Screenshot of the Google Home app on iOS, displaying its device home page for a Honeywell thermostat that reads 74 degrees F.
Google Home app on iOS, displaying its device home page for a Honeywell thermostat that reads 74 degrees F.

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

Example Google Home Voice 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.
    • 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.
    • Okay Google, what is the current thermostat indoor humidity? 
    • 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.

Other Posts About the Honeywell Thermostat

    1. How to Restart Honeywell Thermostat
    2. How to Cancel Schedule on Honeywell Thermostat
    3. Setting Permanent Hold on Honeywell Thermostat
    4. How to Cancel Hold on Honeywell Thermostat

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References for How to Connect Honeywell Thermostat to Google Home

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

Revision History

    • 2019-05-18: Tuned the targeting for ‘How to Connect Honeywell Thermostat to Google Home’ and added tags.
    • 2019-02-16: First published.