Quick Summary
The HTW-WF11-3A3 tuya thermostat is designed for water heating systems. It measures room temperature and controls heating output through relay switching. The thermostat supports an external temperature sensor for more accurate room or floor monitoring. WiFi connectivity allows remote control through a mobile application.
This page explains the control logic, wiring reference, and key parameters. It also outlines installation considerations and model code meaning. Engineers can review the configuration options and sensor support. Typical project questions and customisation possibilities are also briefly explained.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
1. Remote Control via Tuya Platform
The tuya thermostat connects to WiFi for remote control through a mobile application. Users can adjust temperature and operating mode anytime. This improves comfort management and helps reduce unnecessary heating energy use.
If one is looking for a water heating thermostat without a WiFi function, this model may be referred to (HTW-WF11-3A1).
2. External Temperature Sensor Support
The controller supports an external sensor in addition to the internal NTC sensor. This enables more accurate temperature detection for certain installations. Engineers may position the sensor at a preferred measuring point.
3. Weekly Programming Control
Programming allows automatic temperature adjustment according to daily schedules. Heating output follows predefined time periods and temperature levels. This function helps stabilise room comfort while improving heating energy efficiency.
Display
(This section shows the product’s dimensions and the interface layout.)
Specifications
(This section lists the key parameters for reference and project confirmation.)
| Parameter | Value |
|---|---|
| Power Supply | 100–240 VAC, 50/60 Hz |
| Output Load | 3A for water or boiler heating |
| Built-in Sensor | NTC3950, 10K |
| Setpoint Range | 5–35°C |
| Installation | 86×86 mm junction box or EU round box |
| Protection Class | IP20 |
| Warranty | 2 years |
Wiring
(This section provides the wiring reference diagram for correct installation.)
Guide
(This section explains what configuration the model code refers to.)
| Heating series | xx stands for |
|---|---|
| 3A | Water Heating, with NC + NO + COM output terminals |
| 16A | Electric Underfloor Heating, with L + N line voltage output terminals + External Sensor |
| NV | Boiler Heating, with Non-Voltage Dry Contact |
| 1 / 2 / 3 | 1 = Standalone, 2 = Modbus, 3 = Wi-Fi |
| Example | HTW-WF11-xx: if xx = 16A3, it stands for electric floor heating with external sensor support and Wi-Fi function. Most sub-models are ready-made. Kindly contact us to confirm availability. |
Project Fit & Customization
(This section explains where the product can be used, its limits, and OEM/ODM options.)
The HTW-WF11-3A3 tuya thermostat is not suitable for high current electric floor heating loads. It also cannot control multi-zone heating systems directly. Installations requiring BMS communication protocols are not supported. Projects needing industrial protection levels or outdoor installation environments are also unsuitable.
Despite these limits mentioned above, certain configuration adjustments can be discussed. Communication functions and control logic may be customised for specific projects. Our engineers review feasibility based on application conditions. Final functions depend on technical confirmation during project discussion.
OEM customisation is also available for project branding needs. Options may include logo printing, label modification, and packaging design. Colour adjustment may also be discussed depending on production quantity. These options help partners maintain brand consistency.
Certifications
Exhibition Moments
Frequently Asked Questions
Q1. What heating systems can this tuya thermostat control?
This model is designed for water heating control with relay output. It manages heating based on temperature feedback from the internal or external sensor.
Q2. Can the thermostat work with an external temperature sensor?
Yes. The controller supports an external NTC sensor. It can measure temperature at another location for more stable control in certain installation environments.
Q3. Does the thermostat support mobile application control?
Yes. The tuya thermostat connects through WiFi and works with the Tuya mobile platform. Users can adjust temperature remotely and manage heating schedules.
Q4. What is the minimum order quantity and can samples be provided?
Yes, thermostat samples are available for testing. The typical minimum order quantity is 300 units, though smaller trial quantities may also be discussed.
Q5. How can we place an order?
Please contact our team to confirm the model and requirements. We will provide a proforma invoice. Payment methods include TT, PayPal, Visa, and other common options.
Q6. What shipping methods are usually used?
Courier delivery is usually recommended and normally takes about seven days. Air freight is also available. Sea shipping may take over one month depending on destination.
Need Support?
If you need help selecting the right tuya thermostat for your water heating project, please contact us. Our team can assist with model selection, wiring confirmation, and project discussion.
