
UFH Water Heating / FM21
White Touch LED Thermostat for Floor Heating WiFi Control
A clear temperature display and touch keys for everyday room control.
Wi-Fi optionTuya Zigbee option
AT A GLANCE
Control essentials
- 3.2” LCD
- Touch keys
- 2.4GHz Wi-Fi connectivity
- SmartLife App (Option)
- 3A water heating and boiler control
- 7-day, weekday/weekend, 24-hour schedule
- Floor probe (external sensor)
- Floor maximum temperature protection
- Open window function
- Adaptive heating function
- Defrost protection
- C/F temperature display
- 12/24-hour time format
- Touch keys lockout
| Power Supply | 24V or 230V |
|---|---|
| Interface | 3.2″ LCD with touch keys |
| Application | Hydronic heating / Electric heating / Hot water |
| Output | 3 A water heating / 16 A electric, by variant |
| Connectivity | 2.4 GHz Wi-Fi / Tuya option. Tuya Wi-Fi, LoRaWAN, Tuya Zigbee. |
| Installation | Flush mounting |
Dimensions & Installation
Click a drawing to enlarge.
Features and communication options vary by configuration. Confirm the supply voltage, outputs and protocol before ordering.
PUT IT TO WORK
Solutions using this product family
01Multi-zone underfloor heating
Give each room its own temperature schedule, with coordinated control at the manifold.
YOUR PROJECT, DEFINED
Start with your system.
Outline the equipment, rooms and control requirements for your project.

