Home heating add-on designed to give room-by-room temperature control and reduce wasted energy. Homeowners who want simpler schedules and fewer cold spots will gain clearer control and useful consumption history. Is SONOFF Zigbee Thermostatic Radiator Valve the best way to upgrade existing radiators for smarter heating?
⚡ At a Glance
- • Temperature Control: 0% to 100% valve opening with 1% accuracy for fine regulation
- • Best for: Homeowners who want smart heating zones and Home Assistant integration
- • Not ideal for: Properties with non M30 x 1.5mm radiator valves or those needing included batteries
Motorised valve control uses precise 1% step adjustments and Zigbee communication. Integration with Zigbee2MQTT enables centralised scheduling and automation.
Lower heating waste - thanks to automatic shut-off and consumption tracking
Automatic shut-off activates when ventilation is detected, and six months of consumption data can be queried for daily, weekly and monthly views. Control and historical logs are accessible via the eWeLink app when paired with a Sonoff Zigbee 3.0 hub.
Reduced heat loss during window opening and clearer visibility of where heating is being used most, helping to focus adjustments and save energy.
Centralised smart control - with Zigbee connectivity and Home Assistant support
Zigbee connectivity allows integration through Zigbee2MQTT, enabling Home Assistant to manage schedules, groups and automations. Voice control is available through Alexa and Google Home when connected via compatible hubs.
Schedules, group commands and voice adjustments become part of the wider smart home setup, so heating behaviour can match daily routines without manual fiddling.
Straightforward fit for most radiators - with M30 x 1.5mm adapters included
Valve adapters are supplied to match common radiator stems that conform to the M30 x 1.5mm thread. The unit accepts 0% to 100% opening commands with 1% precision for granular temperature control.
Existing radiators can be upgraded quickly using the supplied adapters, making room-level control achievable without replacing the whole radiator.
✨ The 4 Key Reasons for SONOFF Zigbee Thermostatic Radiator Valve
- Zigbee compatibility - Works with Zigbee2MQTT for Home Assistant integration and automation
- Scheduling and groups - Set heating schedules and group valves for zoned control
- Automatic ventilation shut-off - Detects ventilation and closes valve to avoid wasted heat
- Historic consumption data - Six months of usage data helps spot savings opportunities
📋 Technical Details at a Glance
- Brand: SONOFF
- Model: TRVZB
- Category: Thermostatic Radiator Valve
- Protocol: Zigbee
- Integration: Zigbee2MQTT, Home Assistant compatible
❓ Frequently Asked Questions
Q: Is the valve compatible with Home Assistant?
A: Yes, integration with Home Assistant is possible via Zigbee2MQTT, enabling smart thermostat control and automation.
Q: Does it work with voice assistants like Alexa and Google Home?
A: Yes, voice control is supported when the valve is connected through compatible Sonoff Zigbee 3.0 hubs and the eWeLink app.
Q: Are batteries included with the valve?
A: No, the TRV does not include 3 AA batteries, these must be supplied separately.
🏆 Our Verdict
Ideal for homeowners looking to add room-by-room control and automation to existing radiators. Precise 0 to 100% valve control combined with Zigbee and Home Assistant compatibility makes it especially useful for organised smart-home setups. Long-term value comes from automatic ventilation shut-off and six months of consumption data, which can reveal real heating savings over time.
