Landis+Gyr Heat Meter
landisgyr_heat_meter
The Landis+Gyr Heat Meter integration for Home Assistant allows you to read the meter values from Ultraheat devices by Landis & Gyr. These devices are commonly used for district heating. The integration has been tested with the Landis & Gyr Ultraheat 50, UH50 (type LUGCUH50) and T550 (type LGUHT550). Other models could work. The T330 is not yet supported.
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) |
What people report
The Landis+Gyr heat meter reads over a serial link, and one user hit 'No model could be read' in 2023.5 that was later closed as fixed.
- Works1
| Device | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| Landis+Gyr heat meter | Works | Fixed after 'No model could be read' reportSaved copy… the hint regarding the debug logs. Now I get this when I add the integration: ``` 2023-05-09 12:35:24.332 DEBUG (MainThread) [homeassistant.components.landisgyr_heat_meter.config_flow] Using this path : /dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0036-if00-port0 2023-05-09 12:35:24.333 DEBUG (MainThread) [ultraheat_api.ultraheat_reader] Initializing UltraheatReader on port: /dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0036-if00-port0 2023-05-09 12:35:24.345 DEBUG (SyncWorker_7) [ultraheat_api.ultraheat_reader] Waking up Ultraheat … Excerpt saved from GitHub on 2026-10-23. | Issue #92770 · 2023-05 |
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) | 20 |
|---|---|
| Added in | Home Assistant 2022.9 |
| Set up in the UI | Yes |
| Maintainers | @vpathuis |
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://www.home-assistant.io/integrations/landisgyr_heat_meter/
- Source code: https://github.com/home-assistant/core/tree/dev/homeassistant/components/landisgyr_heat_meter
- Issues: https://github.com/home-assistant/core/issues?q=is%3Aissue+label%3A%22integration%3A+landisgyr_heat_meter%22
