Honeywell

Honeywell Total Connect Comfort (US)

honeywell

Built inCloud polling

The Honeywell Total Connect Comfort integration integrates Home Assistant with US-based Honeywell Total Connect Comfort (TCC) climate systems.

Documentation Source code

In Apple Home through HomeKit Bridge

What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.

Entity	Shows up as	Note
`switch`	Switch or outlet
`climate`	Thermostat
`humidifier`	Humidifier or dehumidifier
`sensor`	Sensor (humidity, temperature)

What people report

Honeywell Total Connect Comfort thermostats work through the cloud, with occasional set-temperature failures from the TCC service.

Works5
Partly works4
Not working1

Device	In Home Assistant	What they said	Source
Honeywell C7089R1013 sensor	Works Cloud	Listed as known working temperature and humidity sensor Saved copy Supported devices: Thermostats; Every thermostat is exposed as a climate entity; Known working devices: TH6320R1004, RTH9585WF1004, RTH6580WF; Sensors; A Temperature sensor entity; A Humidity sensor entity; Known working devices: C7089R1013, RTH6580WF. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Honeywell RTH6580WF	Works Cloud	Listed as known working thermostat and humidity sensor Saved copy Supported devices: Thermostats; Every thermostat is exposed as a climate entity; Known working devices: TH6320R1004, RTH9585WF1004, RTH6580WF; Sensors; A Temperature sensor entity; A Humidity sensor entity; Known working devices: C7089R1013, RTH6580WF. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Honeywell RTH9585WF1004	Works Cloud	Listed as known working thermostat Saved copy Supported devices: Thermostats; Every thermostat is exposed as a climate entity; Known working devices: TH6320R1004, RTH9585WF1004, RTH6580WF; Sensors; A Temperature sensor entity; A Humidity sensor entity; Known working devices: C7089R1013, RTH6580WF. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Honeywell T6 thermostat	Works	One user happy with it in HA Saved copy Yes. I'm very happy with my Honeywell T6. Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.	Reddit comment · 2025-10
Honeywell TH6320R1004	Works Cloud	Listed as known working thermostat Saved copy Supported devices: Thermostats; Every thermostat is exposed as a climate entity; Known working devices: TH6320R1004, RTH9585WF1004, RTH6580WF; Sensors; A Temperature sensor entity; A Humidity sensor entity; Known working devices: C7089R1013, RTH6580WF. Excerpt saved from home-assistant.io on 2026-10-23.	Docs
Honeywell T10 Pro WiFi thermostat	Partly works Cloud	Only temperature and mode controllable in Home Assistant; user disappointed with integration Saved copy I hear the T6 recommended a lot. I have a T10 Pro which is WiFi. The thermostat itself is great with lots of features, but I'm disappointed in the Home Assistant/HomeKit integration. I can only control temperature and mode. I'm wondering if the T6 is any better. For example, do the integrations allow you to control the Fan....not the temperature or mode, but just the fan? I cannot do this with the T10, as fan control is not exposed and I'd like to turn on just the fan for certain automations. There are other quirks, but fan control is what I'm most interested in. Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.	Reddit comment · 2026-05
Honeywell TCC thermostat set_temperature	Partly works Cloud	Setting temperature intermittently fails with unknown error from TCC service Saved copy The problem I have had a working thermostat during the summer, and now that the colder months are here, I wanted to heat the house a little bit. The Honeywell TCC returns a "Failed to call service climate.set_temperature. Unknown error" when the set_tempearture is above or equal to 22.5. I've tried with the Service under the Developer tools, and it looks like all the temperature below 22.5 works, but none above (i.e. 22.5, 23, 23.5, etc.). I do recall this was working last winter. I've noticed this since I have an automation that sets the temperature at 22.5 at 0530. Here is the log: Logger: … Excerpt saved from GitHub on 2026-10-23.	Issue #101994 · 2023-10
Honeywell thermostat	Partly works	HA integration lacks hold-until-time program changes and fan mode control Saved copy The only app I use outside of HA is for my Honeywell thermostat. The HA integration is lacking some of the feature set. Mostly when I want to change the program to hold a different temperature until a specified time of day for just that day. Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.	Reddit comment · 2024-02
Honeywell WiFi thermostat	Partly works Cloud	Connects to HA but cloud servers go offline sometimes, leaving it unresponsive Saved copy You definitely can connect the thermostat to HA. You'll want to be aware that their cloud servers go offline from time to time causing the thermostat to be unresponsive to HA. You can still manually adjust it at the wall though. Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.	Reddit comment · 2026-05
Honeywell Wi-Fi thermostats	Not working	Continual connection problems with HA in basement Saved copy … comments here recommending UniFi. I am a very happy UniFi user myself, but my one exception is in the Smart Home area that OP is asking. I have a number of Honeywell Wi-Fi thermostats in a basement mechanical room that had continual problems connecting to Home Assistant using either the Honeywell integration or HomeKit integration. I finally gave up after more than a year of trying various tweaks to the controller settings in my UniFi UDM. I stopped having problems after buying a cheap router and connecting via a LAN port to a vlan on my UniFi network. Overall, I love my UniFi setup (UDM, … Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.	Reddit comment · 2023-10

Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.

How it connects

Cloud polling

Goes through the maker’s cloud, asking it for updates every so often. Needs the internet and an account.

Details

Installs (analytics)	3,604 (0.51%)
Added in	Home Assistant pre 0.7
Set up in the UI	Yes
Maintainers	@mkmer

Devices listed in its documentation

Thermostats
Every thermostat is exposed as a climate entity
Known working devices: TH6320R1004, RTH9585WF1004, RTH6580WF
Sensors
A Temperature sensor entity
A Humidity sensor entity
Known working devices: C7089R1013, RTH6580WF

In ReReHome

Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.

Bridges get their own settings page listing the accessories behind them.