HOW-TO: Control your Ouman EH-800 heating controller using Home Assistant

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Happy to announce that as of Home Assistant 2026.6, Ouman EH-800 is an official integration!

Note that if you are migrating from the custom integration, it will not be a one-to-one transition. The config entry will work, but the entities will be re-created.

I will no longer be updating the custom integration. For future updates, please migrate to the official integration.

Differences to the custom integration:

  • L1/L2 circuits are created as sub-devices
  • Room temperature setpoint controls are exposed as a climate entity instead of number
  • Some of the text-based diagnostic sensors have been dropped
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Amazing! Nice work @Markus98 :partying_face:

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Here is a list of all registries. Unfortunately, only in Finnish, but try using a translator.

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