Quick Summary
HTW-ECB6-3A1 is a water heating thermostat designed for indoor water heating systems. It measures room temperature and controls the heating circuit through NC, NO and COM terminals. The thermostat uses a white backlit touch interface for clear status display. Stable switching helps maintain steady room temperature in daily heating operation.
This page explains how the water heating thermostat works in real installations. It includes functional explanation, wiring reference and key technical parameters. Typical installation situations and model code meaning are also described. Common project questions and basic ordering information are also provided.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
01. Water Heating Output Control
The water heating thermostat switches heating circuits using NC, NO and COM relay terminals. This control method suits common water heating valve connections. It helps maintain stable heating response while keeping wiring simple for installers. We have WiFi version HTW-ECB6-3A for this model.
02. Clear Backlit Display Interface
The thermostat uses a white backlit screen for clear visibility in indoor environments. Users can read temperature and operating status easily. The interface supports quick adjustment of the water heating thermostat setpoint.
03. Stable Temperature Sensing
An NTC3950 sensor measures room temperature and supports accurate heating control. Temperature accuracy reaches ±0.5°C during normal operation. This helps the water heating thermostat maintain stable comfort conditions.
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 | 95~240Vac |
| Frequency | 50/60Hz |
| Current Load | Fan Relay 5A (3A inductive); Valve Relay 3A (1A inductive) |
| Accuracy | ±0.5°C or ±1°F |
| Sensor | NTC3950, 10K |
| Setpoint Range | 5~35°C |
| Display Range | 5~99°C |
| Installation | EU or Standard Electric Box Housing |
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 / 3 | 1 = Standalone, 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.)
This thermostat is not suitable for building management system integration. It does not support Modbus, BACnet or other communication protocols. Projects requiring remote monitoring or central control should consider other thermostat models.
Standalone models also do not provide Wi-Fi connection or mobile application control. System integration through cloud platforms is therefore not available. Projects needing remote management may require different communication versions.
Despite these limits mentioned above, functional customisation can still be discussed. Communication protocol, control logic or display behaviour may be adjusted when required. OEM options such as logo printing, label design and colour adjustment are also available.
Certifications
Exhibition Moments
Frequently Asked Questions
Q1. Can this water heating thermostat work with most water heating systems?
Yes. The thermostat switches heating valves through NC, NO and COM relay terminals. This wiring structure fits many common water heating control circuits.
Q2. Where should the water heating thermostat be installed?
The thermostat is usually installed on an interior wall. It should avoid direct sunlight, air vents or heat sources to ensure correct temperature sensing.
Q3. Does this thermostat support connection with BMS systems?
No. This model is a standalone thermostat without communication protocol support. Projects needing BMS integration should choose Modbus or BACnet thermostat versions.
Q4. What is the minimum order quantity and can I get samples?
Thermostat samples are available for testing and evaluation. The usual minimum order quantity is about 300 units, but smaller quantities can also be discussed.
Q5. How can I place an order?
Please contact us to confirm your requirements. We will then provide a proforma invoice. Payment methods include TT, PayPal, Visa and others. Terms include EXW, FOB and DAP.
Q6. How will the products be shipped?
Express door-to-door delivery is commonly recommended and usually takes about seven days. Air freight may take a similar time, while sea freight normally requires about one month.
Need Support?
If you need help selecting the right water heating thermostat or planning a project, please contact us. Our team can discuss application details and suggest suitable thermostat options.
