Hargassner cloud API — Full control via Home Assistant

Share your Projects! Custom Integrations
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Hi everyone! I’ve built a custom integration for Hargassner boilers using the official cloud API (reverse-engineered from the Android app).

:link: GitHub: GitHub - lithium73fr/hargassner-ha: 🔥 Home Assistant custom integration for Hargassner pellet/biomass boilers — temperatures, fuel stock, heating circuits control, holiday mode and more. Requires a Hargassner cloud account. · GitHub

Features:

  • Sensors: boiler temp, flue gas, outdoor temp, fuel stock, state
  • Climate entity per heating circuit (day/night setpoints)
  • Mode selector (Auto / Heating / Setback / Off)
  • Automatic token refresh, offline fallback
  • Configurable polling interval
  • Service hargassner.start_ignition

Install via HACS → Custom repositories → https://github.com/lithium73fr/hargassner-ha

Tested on Nano.2 12. Feedback welcome for other models!