Bosch BTH-RM230Z in Home Assistant
Thermostats & TRV · Zigbee · Room thermostat II 230V
This device is known to both Zigbee integrations: Zigbee2MQTT has a definition for it, and ZHA has a quirk that adapts it.
Facts about this device
- Brand
- Bosch
- Model
- BTH-RM230Z
- Device type
- Thermostats & TRV
- Radio
- Zigbee
- Reports itself as
- RBSH-RTH0-ZB-EU
- Zigbee2MQTT
- Device page on zigbee2mqtt.io
Where to buy
How the device gets into Home Assistant
- official ZHA – with a Zigbee coordinator and the ZHA integration; the quirk the device needs is part of ZHA.
- official Bosch Smart Home Controller – paired with the Bosch Smart Home Controller, which the Bosch SHC integration connects to Home Assistant.
- add-on Zigbee2MQTT – Zigbee2MQTT runs as an add-on and passes the device on to Home Assistant over MQTT.
Known problems and fixes
Requests for ZHA support
- support requested Someone asked ZHA to support this device or one of its functions.
ZHA quirks for this device
Quirk included in ZHA Recommended quirk
Part of ZHA – Home Assistant uses it on its own, nothing to install.
Adds: Heating demand Valve state Local temperature External temperature Operating mode Heater type Actuator type Sensor connection Temperature display mode Boost heating +8
Source:
zha-device-handlers · since zha-quirks 2.2.2
Signature: Bosch / RBSH-RTH0-ZB-EU
1 more quirk for this device
-
Quirk proposed, not merged yet
Bosch/RBSH-RTH0-ZB-EUzha-device-handlers · pull request #5322 · by @dehnerson · 11 de setembro de 2026
Sources: Zigbee2MQTT, ZHA quirks, Z-Wave JS, the Matter certification database, Shelly, ESPHome, Tasmota, Tuya Local and the issue trackers on GitHub. Reports are assigned to a device by the identifiers they contain; the sentences come from the integration pages, where a language model writes them from the titles.