Weishaupt Heatpump integration via modbus

Seid mitte März ist die Version 5.5 die aktuelle. Die soll aber nur dort installiert werden wo es “Probleme” mit dem Abtauvorgang gibt.

Hi all,

I've developed a local MQTT integration for the Weishaupt web‑interface controller.

It reads data directly from the built‑in WEM web interface and publishes it to Home Assistant using MQTT Discovery — completely local, cloud‑free, and without requiring Modbus access.

Currently, it supports data from the heat pump, heating circuits (HK1/HK2), statistics, and the secondary heater (2. WEZ).
It has been tested with a Weishaupt Aeroblock WAB 14 heat pump, but feedback from users with different WEM configurations would be especially welcome.

You can find the repository here:

If anyone is interested in testing it, I'd really appreciate feedback, bug reports, or ideas for improvements.

Thanks!