Rinnai Water Heater to Home Assistant integration
Link to guide: https://blog.yavilevich.com/2020/08/changing-a-dumb-rinnai-water-heater-to-a-smart-one/ Source code: https://github.com/ayavilevich/rinnai-wifi/ At about 0:20 in the video the ESP32 had WiFi issues so it took some time for the MQTT messages to get to HA and update the status in the app. At the end you can see how the modification keeps the system at the temperature that was set in HA regardless of attempts to change.
Link to guide: https://blog.yavilevich.com/2020/08/changing-a-dumb-rinnai-water-heater-to-a-smart-one/ Source code: https://github.com/ayavilevich/rinnai-wifi/ At about 0:20 in the video the ESP32 had WiFi issues so it took some time for the MQTT messages to get to HA and update the status in the app. At the end you can see how the modification keeps the system at the temperature that was set in HA regardless of attempts to change.