Aqara W500 Underfloor Heating Thermostat

The Aqara W500 underfloor heating thermostat precisely manages your electric or hydronic underfloor heating from the app, by voice, or by local programming. Compatible with Apple HomeKit, Google Home, Alexa, SmartThings, and Homey, it works with Thread or Zigbee depending on your installation, and keeps your home at the right temperature without wasting energy.

 

Precise regulation, even without an internet connection

The W500 reads the temperature from multiple sources: its built-in sensor, a wired NTC floor sensor, or an associated Aqara temperature and humidity sensor. Calibration is adjustable to ±5°C for truly precise control. Schedules can be programmed for 7 time slots per day, 7 days a week, with 5 preset modes available. Once configured, they run locally on the device, even in the event of an internet outage or hub disconnection.

 

The Aqara W500 underfloor heating thermostat that protects your system and reduces your bill

The Aqara W500 underfloor heating thermostat monitors real-time consumption and tracks daily and monthly history from the Aqara Home app. If a window remains open, the heating automatically pauses. Without a sensor, a sudden drop in temperature triggers a 30-minute pause. Configurable temperature margins between 0.5 and 3°C limit unnecessary on/off cycles, which preserves equipment and improves comfort. Frost protection maintains a minimum temperature around 5°C, and automatic cut-off in case of overheating or overload secures the entire system.

 

Thread or Zigbee, your choice depending on your setup

In Thread mode, the W500 connects directly to Matter ecosystems without an Aqara hub. In Zigbee mode, it unlocks advanced features of the Aqara ecosystem and remains backward compatible with existing hubs. Switching between the two protocols is free according to your preferences. The power supply supports up to 16A and 3600W resistive load, making it suitable for the vast majority of underfloor heating installations in Europe.

 

FAQ

How does the thermostat detect an open window without an external sensor?

The thermostat features a built-in smart algorithm: if it detects an abrupt, rapid temperature drop in the room, it assumes an exterior door or window has been opened. It instantly pauses the heating cycle for 30 minutes to prevent heating the outdoors. For even more precise triggers, you can link a dedicated Aqara Door and Window Sensor.

Can I switch between Zigbee and Thread protocols after installation?

Yes, absolutely. The Aqara W500 thermostat is built with a dual-protocol chip. You can easily toggle between the two modes from the device settings depending on your current smart home setup (e.g., using Zigbee now and migrating to Matter-over-Thread later).

Will the heating turn off if my internet connection or smart home hub goes offline?

No. Once your temperature schedules and configurations are saved, they run 100% locally on the thermostat's internal hardware memory. In the event of an internet outage, Wi-Fi failure, or hub disconnection, the W500 will autonomously maintain your scheduled comfort levels.

Specifications