I am starting this topic to have a single point to discuss the Östberg HERU FTX (energy recovery ventilation unit).
There is a custom component supporting the HERU available here: GitHub - toringer/home-assistant-heru: Östberg HERU energy recovery unit component for Home Assistant
It can easily be installed using HACS.
The firmware version of HERU has seen breaking changes, with no clear warning/information from Östberg before upgrading. So bear this in mind when upgrading.
The integration requires at least firmware 1.09i to be installed. The highest confirmed working version is 1.14. If you have installed a more recent version, and can confirm that it works with the HERU integration, please comment below.
I am using your integration as of HERU version v1.10, now with with latest upgrade v1.14, and all seems to be functional correct.
Hi
I just started running the integration with the 1.14 version of firmware. It seems to be working as expected.
But I don’t understand the meaning of a temperature measurement, Heat recovery temperature. Does anyone know what that value represents?
I am also using the integration (v.1.0.6) and running the latest firmware (1.14, July 2024) on a Heru 160s. It is working great except for “Current heat/cold recovery power” which is always stuck at 99.9999999885%. I have created an issue over on github.
@magicus What is needed to get this to work? Some sort of WiFi dongel or connect thing on the Heru?
Will be swapping my 40+ year old FTX to a Heru or Systemair in the coming months.
Was using Airiana on a Rpi2 with a rs232-hat in my old house. Can recommend that for everyone with a Systemair.
For my setup, I have an ethernet cable connecting to the Heru. However, since this is installed in my attic and I did not want to put wiring all way up, I bought a multi-function WiFi extender which has an ethernet port. This links up over WiFi with my router.
This works, but unfortunately it is a bit shaky. Apparently the range extender I bought was not the best quality, and it needs to be restarted every now and then, which is a bit tricky since it is in the attic. So a recommendation is to do your research and make sure you buy a high-quality connection. Or put ethernet all the way, it’s probably the best.
Ok so the Heru actually has ethernet our of the box? Its not an optional device you buy extra?
WiFi extenders usually sucks 