Hello, a few month’s ago i have created my own app to connect our heatpump to homey. Since then i have been active using it. All seems to work great. I’am using it to adjust mode, heating temp but also to adjust heatwater temperature to use as much sunpower for heating it instead of buying current…

Recently we moved to a new house. So I’am not longer a Stiebel owner and can not test/check any adjustment. Request about wrong values are caused by the way values are stored in the modbus-Gateway. If any ‘developer’ want to take over the app I’am willing to arange.

I am a Stiebel Eltron heat pump owner and developer with some time to spare. In the past I experimented with the Modbus connection to the ISG, primarily to monitor the exact power consumption of my heat pump. Unfortunately the ISG only records daily power usage, and only the total kWh is available …

Maybe you can add it into the app i already published? and take over this app? so bring together both functionalities? I’am not longer owner of a Stiebel so can not develop/test anymore.

I’m happy to take over the app and see if I can merge the two. Not sure how different the apps are setup. I’ll message you.

Hi Everyone, I have taken over the Stiebel Eltron Heatpump app from H_van_Barneveld, as he no longer owns a Stiebel Eltron heat pump. I will continue development and am open to suggestions. I developed a similar app for personal use. My goal is to merge these apps into a complete solution for Stie…

[image] Michel_Hoek: Hi Everyone, I have taken over the Stiebel Eltron Heatpump app from H_van_Barneveld, as he no longer owns a Stiebel Eltron heat pump. I will continue development and am open to suggestions. I developed a similar app for personal use. My goal is to merge these apps into a c…

HI Michel. I appreciate you continuing the app. I have a SE heatpump with the ISG. It is by far the greatest power user in my farm and I would really like to know more about why and when - realtime. I am nog a developer but I am willing to help if I can. Hans Timmermans

Hi Everyone, I have published an update for the Stiebel Eltron Homey app. With this update I have added a new device called ‘Heat pump’. This device is a new implementation you can use to manage your heat pump with additional capabilities and functions. I have implemented triggers for setting the h…

Version 1.4.0 is now available. Support for Stiebel Eltron LWZ-Series integral ventilation heat pump units has been added. Special thanks to Daniel for working together and testing the LWZ implementation.

Version 1.5.1 is now available. The number of compressor starts have been added to the capabilities. This can be a good indication of the health(lifespan) of the heat pump. Some display handling has been done for unsupported capabilities. A nice ‘-’ is displayed instead of -32768. We have also add…

Modbus integration for ISG-webinterface - STiebel Eltron heatpump

Developers

AthomUser April 8, 2026, 3:07pm 22

…removed… I should have posted it here: Heatpump Stiebel Eltron ISGweb - #16 by AthomUser

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Modbus integration for ISG-webinterface - STiebel Eltron heatpump

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