ESPHome Altherma + Emoncms setup guide

[jjohnsen]

I’ve published a new step-by-step guide for setting up long-term Daikin Altherma monitoring with ESPHome Altherma + Emoncms in Home Assistant: https://jjohnsen.no/2026/esphome-altherma-emoncms-setup-guide/

The result is much more than live status:

• Derived heat pump KPIs (deltaT, heat output, kWh, COP)
• Long-term trend analysis across days, months, and seasons
• Better visibility into efficiency drift and tuning impact
• Split analysis for space heating vs DHW in MyHeatpump
• Purpose-built heat pump dashboards instead of generic charts

Feedback is very welcome, especially on clarity and missing steps.