Hargassner heating integration

If you like to try:

I updatet the code from @TheRealKillaruna with the help of claude code and codex.

It now has a Tile and configuration UI in HomeAssistant.
Feel free to get in touch with me, if errors are happening and provide the also new log files to make it even better.

Also the “Verbrauchzähler” errors should be gone now.

TheRealKillaruna did a great job and with the help of AI i hope we can make it even better :stuck_out_tongue_winking_eye: (i am not a programmer mysel but i understand some code and can prompt pretty well)

Best regards

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Ich habe Hargassner jetzt komplett über NodeRed gelöst.
Keine Eintragung mehr der MSQ Datei bei Software Update. NodeRed holt sich die Werte über die hargassner Webseite

I get the following error:

The version 95809c6 for this integration can not be used with HACS.

Using HACS 2.0.5

Home Assistant

  • InstallationsmethodeHome Assistant OS
  • Core2025.10.2
  • Supervisor2025.10.0
  • Operating System16.2
  • Frontend20251001.2
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Hi Guys, i’ve developped a project to pilot my NanoPK, including modifying the temperature, the boiler mode and the zone mode.

project can be found here: GitHub - hlehoux2021/MyHargassner: my personnal hargassner experiments
boiler is presented using MQTT-Discovery ; unfortunatly i’m not a home assistant user, but still it might be useful to share

I’m looking for feedback from people who would like to test it

hi !
I’m new on HomeAssistant after many years on Jeedom i’m switching to HA.
I have a Nano PK with V14.0HAR.n6 and I don’t manage to get values on my HA.
I tried to get from my boiler and inserted it in my config file as mentioned on github but can’t get it work.
Anybody managed to get it work with this firmware ?
Thx ?

too bad my project with Mqtt-discovery would work

Hi ! ok but i’m quite new on HA and i don’t know how to install your solution

Wie hast du das gemacht? Hast du da mehr Informationen für mich?

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Hello @Preskovitch , you’ll find all the information here: MyHargassner/README.md at main · hlehoux2021/MyHargassner · GitHub

another option if you know well jeedom is to switch on it for your boiler, as i could help better because i’m on it (anyway my project uses the mqtt discovery protocol defined by HA so it should work also, but i can’t help on HA)