Danfoss Ally
MTrab/danfoss_ally · vv2.2.2
Danfoss Ally integration for Home Assistant
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 | |
binary_sensor | Sensor (motion, contact, leak, smoke…) | |
sensor | Sensor (temperature, humidity, air quality…) | |
select | Mode picker (as switches) |
What people report
Cloud-based Ally integration; the Danfoss API is not real-time and radiator thermostats had control problems after one update.
- Works1
- Partly works2
| Device | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| Danfoss Icon2 RT thermostats with Ally gateway | Works Cloud | Floor heating thermostats work via cloud; a local-LAN alternative also existsSaved copySure, here it is https://github.com/ivnlab/danfoss-ally-local Fair warning on scope. I never set out to cover everything danfoss_ally does. This is floor heating only, tested on my own setup (Ally gateway plus six Icon2 RT thermostats), and nothing else in the Ally line has been touched. Extending it to the rest is realistic, the local datapoints are there to be mapped the same way, but it needs the hardware on hand and proper testing. I have a single Ally radiator thermostat, which is not enough to do that properly. The raw datapoint mapping is documented in docs/ if it is of any use to you. … Excerpt saved from GitHub on 2026-10-23. | Issue #415 · 2026-09 | |
| Danfoss Ally open window detection | Partly works Cloud | HA only shows what Danfoss cloud reports; window state stayed closedSaved copyIs it just me or has the open windows detection stopped working? I know it worked a week or so ago but now it doens't. HA just reports windows as closed no matter what. I'm pretty sure it works within the Danfoss Ally system as my rediators do not turn on. But for some reason it doesn't get reported to HA. All other temperature measurements work fine. Excerpt saved from GitHub on 2026-10-23. | Issue #15 · 2022-02 | |
| Danfoss Ally radiator thermostat | Partly works Cloud | Controls vanished after 1.1.0 update for some users; downgrade to 1.0.7 helpedSaved copyEnvironment: Example: - Home Assistant version: 2022.10.5 - danfoss_ally version: 1.1.0 - Operation system: Debian Supervised ## Describe the bug A clear and concise description of what the bug is and when it occurs. Сontrols for radiator thermostats no longer available after update. However, for Icon components everything works fine. ## Debug log ```text 2022-10-28 13:08:02.584 DEBUG (MainThread) [custom_components.danfoss_ally] Updating Danfoss Ally devices 2022-10-28 13:08:03.342 DEBUG (MainThread) [custom_components.danfoss_ally] bf44a2b936652fc14cogdf: {'isThermostat': False, 'name': … Excerpt saved from GitHub on 2026-10-23. | Issue #44 · 2022-10 |
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) | 429 (0.06%) |
|---|---|
| GitHub stars | 84 |
| Latest version | v2.2.2 (2026-10-20) |
| Set up in the UI | Yes |
| Maintainers | @MTrab |
| License | GPL-3.0 |
Limitations from the README
- Inconsistency between API and app, devices are not updating correctly between API and app and sometimes the devices renders offline in the app - this is a Danfoss issue and not this integration
- Danfoss Ally cloud/API synchronization is not real-time. Changes made from Home Assistant, the Danfoss app, or directly on a device may take a few minutes before they are reflected consistently across the API and the physical device state.
- For debugging API performance or timeout issues, you can inspect API analytics in Danfoss Developer Portal > Apps > [app name] > Analytics, next to Credentials.
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.
Sources
- Documentation: https://github.com/MTrab/danfoss_ally/blob/master/README.md
- Source code: https://github.com/MTrab/danfoss_ally
- Issues: https://github.com/MTrab/danfoss_ally/issues
- HACS: https://hacs.xyz
