Bosch BTH-RA Compatibility
Radiator Thermostat II · hvac Zigbee
The Bosch BTH-RA (Radiator Thermostat II) is a Zigbee climate / thermostat device from Bosch. It controls heating or climate equipment and reports status back to your smart-home hub. It's confirmed working across 3 platforms, including ZHA (Home Assistant), Zigbee2MQTT, deCONZ. Because it speaks standard Zigbee, the Bosch BTH-RA pairs with any Zigbee coordinator once it's joined to one of the supported bridges above.
Compatibility at a glance
Bosch BTH-RA is a Zigbee hvac from Bosch. It is compatible with: ZHA (Home Assistant), Zigbee2MQTT, deCONZ.
| ZHA (Home Assistant) | ✓ Supported |
| Zigbee2MQTT | ✓ Supported |
| deCONZ | ✓ Supported |
| Zigbee2Tasmota | ✗ Not supported |
| ioBroker | ✗ Not supported |
| Zigbee for Domoticz | ✗ Not supported |
| iHost | ✗ Not supported |
Where to buy the Bosch BTH-RA
The Bosch BTH-RA is widely available on Amazon in the US, UK, Canada and across Europe. Prices and stock vary by region — the link below opens results for your local Amazon store.
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Recommended Zigbee coordinators
The Bosch BTH-RA needs a Zigbee coordinator (USB stick) to join your network. These are the ones we'd buy:
As an Amazon Associate, WillItPair earns from qualifying purchases. This doesn't affect what you pay.
Frequently asked questions
Does the Bosch BTH-RA work with Home Assistant?
Yes. The Bosch BTH-RA is supported in Home Assistant — natively through the ZHA integration. It also works through Zigbee2MQTT.
Is the Bosch BTH-RA compatible with Zigbee2MQTT?
Yes, the Bosch BTH-RA is supported by Zigbee2MQTT.
What Zigbee hub do I need for the Bosch BTH-RA?
Any Zigbee coordinator paired with one of the supported bridges (ZHA (Home Assistant), Zigbee2MQTT, deCONZ) will let you use this device. A SONOFF Zigbee dongle or a ConBee II are common choices.