Zigbee Smart Water Floor Heating Thermostat with Large LCD

This Zigbee Water heating thermostat is a intelligent heating controller  This thermostat compatible with the Tuya ecosystem, it offers programmable 

heating schedules, an easy-to-read large LCD, child lock, and energy-efficient temperature regulation for residential and commercial projects.

 Technical Data  

  Features  

◆Flame-Retardant PC+ABS Housing

The thermostat shell is molded from PC+ABS flame-retardant material, meeting fire safety standards for wall-mounted electrical 

devices in residential and commercial buildings.

◆Ultra-Slim Design — 86×86×13.3mm

At just 13.3mm thick, this thermostat sits nearly flush against the wall surface. The compact 86×86mm footprint fits standard 

pattress boxes in most countries without wall modifications.

◆ Premium Acrylic Face Plate with Chrome Frame

The scratch-resistant acrylic front panel resists yellowing over time, while the polished chrome border adds a modern, elegant 

finish that elevates any room's interior design.

◆ Large Backlit LCD Display with Adjustable Brightness

The high-contrast LCD screen features configurable backlight brightness (1–100 levels), ensuring clear visibility in full darkness 

or direct sunlight. All key information — room temperature, floor temperature, set temperature, time, mode, WiFi status, and lock 

indicator — is visible at a glance.

◆Feather Touch Capacitive Control Panel

Smooth glass-like capacitive touch buttons with no mechanical moving parts — silent operation, no dust-trapping button gaps, 

no click wear over years of daily use.

◆±1°C High-Precision Temperature Accuracy

Equipped with an NTC3977 10K thermistor sensor, the thermostat maintains your set temperature within ±1°C, eliminating the 

wide temperature swings typical of mechanical thermostats.

  Application  

◆Hotel underfloor heating system  ◆Villa hydronic heating control  ◆Building heating control system  ◆Apartment heating control system  

◆Smart home heating control 

 FAQ

1. What is anti-freeze protection and why is it important?

Anti-freeze protection automatically turns on the heating if the room temperature drops to a dangerously low threshold (configurable 2–10°C). This prevents water pipes from freezing and bursting during winter when the property is unoccupied. It is critical for holiday homes, rental properties, and buildings in cold climates.

2. What is child lock and how does it work?

Child lock disables all touch buttons on the thermostat to prevent children or guests from accidentally changing settings. Activate by pressing and holding the designated button for 7 seconds. Some models offer a configurable lock mode where the power button remains functional while all other buttons are locked.

3. What is overheat / high temperature protection?

This safety feature monitors the floor sensor and automatically cuts off heating if the floor temperature exceeds a configurable maximum (typically 25–70°C). This protects temperature-sensitive flooring materials like engineered wood, laminate, and vinyl from warping or damage.

4. What happens if the external sensor fails or is disconnected?

The thermostat LCD will display "ERR" to indicate a sensor fault. The most common cause is the external floor sensor not being connected, or a broken sensor wire. Once the sensor is properly connected or replaced, the error clears automatically.

5. Is the thermostat housing fire-safe?

Quality thermostats use PC+ABS flame-retardant material for the housing. This means the plastic shell meets flammability standards and will not sustain combustion if exposed to flame — an important safety consideration for devices mounted on walls near electrical wiring.