Sensors

Weishaupt WBB

OStrama/weishaupt_modbus · v1.0.19

HACSLocal polling

This integration allows you to monitor and controll your weishaupt heatpump via modbus.

In Apple Home through HomeKit Bridge

What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.

Entity	Shows up as	Note
`sensor`	Sensor (temperature, humidity, air quality…)
`select`	Mode picker (as switches)

What people report

Weishaupt heat pumps are read locally via Modbus; Kennfeld files exist for several WSB models. Gas heating support was attempted.

Works3
Partly works1
Not working1

Device	In Home Assistant	What they said	Source
Weishaupt WSB 8-A-RME-A	Works Local	Kennlinie file added for newer WSB 8 Saved copy I think I have a newer version of the WSB 8 and the Kennfeld is slightly different to the one provided in `weishaupt_wsb8_kennfeld.json`. Here is the Kennlinie from the manuel: Excerpt saved from GitHub on 2026-10-23.	PR #80 · 2025-01
Weishaupt WSB-15-A-RMD	Works Local	Kennfeld file added Saved copy Add WSB-15-A-RMD Kennfeld Excerpt saved from GitHub on 2026-10-23.	PR #137 · 2026-01
Weishaupt WSB6 split heat pump	Works Local	Kennfeld file added Saved copy I have a WSB6 model (so a split heat pump with 6kW) and here are is data take from the data sheet. For the values at 55°C where there were no values given I guesstimated something. For reference, here are two screenshots from the data sheet. Excerpt saved from GitHub on 2026-10-23.	PR #31 · 2024-11
Weishaupt heat pump daily consumption	Partly works Local	Modbus values floored to integers; local web interface has more precise values Saved copy Can you read the daily electrical consumption a little more precisely in Modbus? The WEMPortal integration has more precise values. I would need the more precise values for further integration... in the SMA portal to see the power consumption of the heat pump. WEMPortal Integration: Modbus: Then we could do without the WEMPortal. The connection to the WEMPortal does not always seem to be reliable. I would also prefer to stay in my own network and that is possible by reading out the Modbus. Thank you Excerpt saved from GitHub on 2026-10-23.	Discussion #52 · 2024-11
Weishaupt gas heating	Not working Local	Modbus endpoint not reachable via mbpoll; entities have no data Saved copy … we were previously using a integration (https://github.com/erikkastelec/hass-WEM-Portal) that needs a wemportal.com paid account and then scrapes the heating data from the web portal aswell as the mobile api endpoint for the app. It worked well couple of years but now Weishaupt secured it more and is forbidding the automated data requests. One user tested your integration and I did aswell. Even that we DO NOT HAVE bought the modbus module from Weishaupt it even works - at least half the way. So we can install the integration, it seems also to connect and shows several entities but they do not … Excerpt saved from GitHub on 2026-10-23.	Issue #43 · 2024-11

Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.

How it connects

Local polling

Talks to the device on your network, asking it for updates every so often.

Details

Installs (analytics)	228 (0.03%)
GitHub stars	72
Latest version	1.0.19 (2026-10-08)
Set up in the UI	Yes
Maintainers	@OStrama, @MadOne
License	MIT

In ReReHome

Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.

Bridges get their own settings page listing the accessories behind them.

Sources

Documentation: https://github.com/OStrama/weishaupt_modbus/
Source code: https://github.com/OStrama/weishaupt_modbus
Issues: https://github.com/OStrama/weishaupt_modbus/issues
HACS: https://hacs.xyz