Quick Summary
HTW-ECB6-NV1 is a water gas boiler heating thermostat designed for water or gas boiler heating systems. It controls heating through a pair of non-voltage dry contact terminals. The thermostat measures room temperature using an NTC sensor. This water gas boiler heating thermostat helps maintain stable indoor heating control.
This page explains how the water gas boiler heating thermostat works in real heating projects. It introduces the control logic, wiring reference and key technical parameters. Model configuration meaning and possible project customisation are also explained. Typical installation questions and practical system deployment information are included.
Key Features
(This section explains the core control functions and their practical value.)
01. Boiler Dry Contact Control
The water gas boiler heating thermostat switches heating equipment using non-voltage dry contact terminals. This control method matches common boiler control circuits. It provides safe switching when connecting water heating or gas boiler systems. We have another model HTW-ECB6-NV with Tuya WiFi function.
02. Stable Temperature Measurement
The thermostat uses an NTC3950 sensor to measure indoor temperature. This sensor offers reliable readings during normal heating operation. Stable sensing helps maintain comfortable room conditions throughout the heating cycle.
03. Clear Backlit Display
The thermostat features a white backlit display for clear temperature reading. Users can easily view temperature and system status. The interface allows quick adjustment of heating setpoints during daily operation.
Product Design and Display
(This section shows the product’s dimensions and the interface layout.)
Technical 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 Diagram
(This section provides the wiring reference diagram for correct installation.)
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 |
| 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 automation systems requiring BMS communication. It does not support Modbus, BACnet or other communication protocols. Projects requiring centralised HVAC monitoring should use thermostats designed for protocol integration.
Remote control through mobile applications is also not supported. This model operates as a standalone controller without internet connectivity. Smart home platforms or cloud-based systems therefore require different thermostat versions.
Despite these limits mentioned above, functional adjustments may still be discussed. Control logic or communication interfaces may be modified depending on project requirements. OEM cooperation such as logo printing, customised labels or packaging design is also available.
Certificates and Compliance
Certification documents for Swan Controls thermostats
Swan Controls presenting thermostats at an international HVAC exhibition
Frequently Asked Questions
Can this water gas boiler heating thermostat work with most boiler heating systems?
Yes. The thermostat switches heating through dry contact terminals. This wiring structure matches many common water or gas boiler control circuits.
Where should this thermostat be installed in a heating project?
The thermostat is usually mounted on an interior wall. It should avoid direct sunlight and airflow to ensure stable temperature measurement.
Does this thermostat support BMS communication such as Modbus or BACnet?
No. This model operates as a standalone thermostat. Projects requiring BMS communication should choose models supporting Modbus or BACnet protocols.
What is the minimum order quantity and can samples be provided?
Thermostat samples are available for evaluation. The usual minimum order quantity is about 300 units, but smaller quantities can be discussed for testing.
How can I place an order?
Please contact us to confirm requirements. We will provide a proforma invoice. Payment methods include TT, PayPal and Visa. Terms support EXW, FOB and DAP.
How will the products be shipped?
Express courier delivery is usually recommended and normally takes about seven days. Air freight takes similar time, while sea freight normally requires about one month.
Need Support?
If you need help selecting the correct water gas boiler heating thermostat, please contact us. Our team can discuss project requirements and suggest suitable thermostat solutions.
You can refer to below links:
Electric Underfloor Heating Thermostat
Water Underfloor Heating Thermostat
Final Note / Practical Takeaway:The HTW-ECB6-NV1 water gas boiler heating thermostat offers stable dry contact switching and clear temperature display. It provides reliable heating control for indoor boiler heating systems. [More details: heating thermostat]
