Homey Community Forum

Mill App


Mill heaters

Athom Homey support for for Mill WiFi heaters.

Athom App Store: https://apps.athom.com/app/com.mill

Supported devices

All Mill WiFi heaters should in theory be supported, but only AV1200WIFI and AV1000LWIFI have been tested.

Flow cards

The module supports all normal thermostat triggers, conditions and actions, but also has a few in addition.

Supported triggers:

  • Thermostat mode has changed
  • Thermostat mode has changed to

Supported conditions:

  • Thermostat is/isn’t heating
  • Thermostat mode is/isn’t

Supported actions:

  • Set thermostat mode


Open Settings and enter you Mill credentials before trying to add any Mill heaters.

Supported Languages:

  • English


Use this app at your own risk. The app has been developed with the same APIs and interfaces used by the official Mill app, but there is a chance that the API calls can have unexpected consequences for which nobody but you are responsible.

Change Log:


  • First version


Heat by Stan Diers from the Noun Project


awesome app. I missed this app, its working fine with the NE600WIFI.


Can i still use the mill app, And also use this homey app?
I am unable to find a device, i have a av600wifi (your app did find it once)


Hi Ron,

yes, the app should be able to find your AV600WIFI. If you have already been able to add it, are you sure it doesn’t linger around somewhere? The “add device” will filter out any devices already added to the app.
If you’re still not able to find it, could you PM me the debug logs, please?


Hi, thanks for your reply.
I was able to add it. I had to add it to a room first.



Anyone tested the Mill Wifi Socket with this app?



I’m trying to get flows to work with this app. If I try to control the heaters directly through «devices» they work as intended. I can set the temperature, change mode etc. All works as intended, but:

If I try to use a flow to change anything, nothing happens. Is this a known problem, or am I missing something?