Quick Summary
HTW-TFT12-3ANV3 is a boiler heating thermostat for water and boiler systems. It supports Tuya Wi-Fi for app control. The unit has a colourful touch screen with multi-language display. Programming and holiday modes help keep the temperature stable in daily use.
This page explains how this boiler heating thermostat works in real projects. It covers control logic, wiring references, and key parameters. It also outlines customisation options and typical applications. Practical questions and answers are included to support system selection and installation.
Key Functional Highlights
(This section introduces the main control functions and their engineering value in the specific HVAC system.)
(01) For both the water heating and the boiler heating system
This boiler heating thermostat supports both water heating and boiler systems through different terminals. This allows flexible wiring based on project needs. It helps reduce model variation and keeps installation simple across different rooms.
If an electric underfloor heating thermostat is required instead, one may refer to this model (please click → HTW-THT12-16A3).
(02) Colourful touch screen + Multi-languages display (configurable)
The colourful touch screen makes daily operation clear and easy to follow. Multi-language display can be configured for different regions. This helps avoid confusion and makes the thermostat easier to use.
(03) Wi-Fi (app control)
The boiler heating thermostat supports Tuya Wi-Fi for remote control through a mobile app. We can adjust the temperature and settings without going to the room. This helps save time and improves daily operation.
(04) Programming function + Holiday setting
The thermostat supports weekly programming for regular schedules. During holidays, it follows the weekend settings automatically. This keeps temperature control simple when rooms are not in normal use.
(05) Anti-freeze function
When the temperature drops to a low level, the thermostat starts heating automatically. The trigger range can be set between 3–7°C. This helps prevent freezing damage when the space is not occupied.
Product Design and Display
(This section shows the thermostat appearance, screen interface, or installation dimensions of this specific model.)
Technical Specifications
(This section lists the key technical parameters relevant to this thermostat model.)
| Parameter | Value |
|---|---|
| Power Supply | 100~240Vac, 50/60Hz |
| Output Load | 3A (water/boiler type); 16A (electric floor type) |
| Sensor Type | NTC3950, 10K |
| Setpoint Range | 5~35°C |
| Installation | 86×86 mm box or EU round box |
| Protection Class | IP20 |
| Warranty | 2 years |
Wiring Diagram
(This section provides the wiring diagram for this thermostat in the relevant HVAC control system.)
Model Code 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 |
| 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 & Customisation
(This section describes project suitability, system limitations, and available customisation options.)
This boiler heating thermostat is not designed for high-power electric heating loads. It does not support advanced BMS protocols such as BACnet or Modbus. It is not suitable for large central systems that need complex control or multi-zone management.
Despite these limits mentioned above, we can still discuss practical customisation options. For example, an external sensor can be added if needed. Communication protocols for BMS use can also be considered. Control logic and I/O setup may be adjusted based on project needs.
OEM customisation is also supported for project needs. This includes logo printing, colour changes, and label design. Packaging and language settings can also be adjusted. These options help keep product style consistent across projects.
Certificates and Compliance
(This thermostat complies with European market requirements and is supported by certifications such as CE, RoHS, LVD test reports, EMC test reports, etc)
Exhibition Moments
(Our team regularly participates in international HVAC exhibitions such as Febrava in Brazil, The Big 5 in Dubai, and ISK-SODEX in Turkey, etc.)
Frequently Asked Questions
Q1: Can this boiler heating thermostat be used for both water and boiler systems?
Yes, it supports both systems through different terminals. The control logic is similar. Correct wiring is needed during installation.
Q2: What type of temperature sensor does this model use?
It uses a built-in NTC3950 sensor to measure room temperature. This type is stable and widely used. No extra sensor is required.
Q3: Does this thermostat support remote control?
Yes, it supports Tuya Wi-Fi app control. We can adjust settings remotely. This makes daily use more convenient.
Q4: Is it suitable for large building systems?
No, this boiler heating thermostat is mainly for standalone use. It does not support advanced BMS protocols. It fits small to medium projects.
Q5: What is the MOQ, and do you support samples?
We support samples for testing and checking. Standard MOQ is 300 units. Smaller quantities like 100 units can be discussed.
Q6: How to place an order and arrange shipment?
Contact us to confirm details and get a PI. Payment supports TT, PayPal, and Visa. Terms include EXW, FOB, and DAP.
Q7: How long does it take to prepare the products?
Non-custom samples are ready within 7 days. Custom orders usually take 3–5 weeks. Bulk orders around 300 units need about one month.
Q8: What shipping methods are available?
Courier delivery takes about 7 days door-to-door. Air freight is similar. Sea shipping usually takes over one month.
Need Help Choosing the Right Model?
If you are planning a heating project, feel free to contact us. We can help check system fit and suggest suitable models.
Related Thermostat Models
For more details, please click here directly: Wi-Fi Thermostats | Electric Floor Thermostats | Water Heating Thermostats
Final Note
Heating systems need stable control and protection in daily use. This model works as a boiler heating thermostat for water or boiler systems. It helps keep temperature stable, improves energy use, and supports reliable long-term operation.
