Quick Summary
The HTW-WF11-NV2 boiler thermostat controls boiler heating systems using dry contact switching. It measures room temperature and adjusts boiler operation to maintain stable heating. RS485 Modbus communication supports integration with building control systems. An external sensor helps prevent underfloor overheating in mixed heating installations.
This page explains how the boiler thermostat works in practical heating projects. It describes control functions, wiring reference, and key technical parameters. Guidance is provided for model configuration and project deployment. Typical questions are also answered for system selection and installation planning.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
(01) Boiler heating control with dry contact
This boiler thermostat controls boiler heating systems using non-voltage dry contact terminals. The controller switches the boiler according to room temperature demand. This simple control logic keeps heating stable and avoids unnecessary boiler operation.
(02) RS485 Modbus communication
The boiler thermostat supports RS485 Modbus communication for system integration. Building management systems can read temperature and adjust control settings remotely. This allows central monitoring in hotels, apartments, or commercial heating projects.
If one prefers Wi-Fi feature rather than Modbus, this Wi-Fi boiler thermostat may be referred to (click HTW-WF11-NV2).
(03) External sensor protection
An external sensor can monitor floor temperature in underfloor heating installations. It prevents overheating when floor materials require temperature limits. This protection improves system safety and helps maintain stable heating conditions.
(04) Energy saving operation mode
Energy saving mode reduces heating demand during low-occupancy periods. The controller limits heating output while maintaining a basic comfort level. This helps reduce energy consumption in residential or hospitality projects.
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/boiler heating; 16A for electric floor 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.)
This boiler thermostat is designed mainly for standard boiler heating control. It does not directly regulate electric floor heating loads or high-power heaters. Standalone installations may also not support advanced building automation functions without Modbus communication.
Despite these limits mentioned above, some project adjustments can be discussed. Communication protocol or control logic may be adapted for certain system requirements. These options depend on project quantity and technical feasibility.
OEM cooperation is also available for brand customisation. Options may include logo printing, housing colour changes, or product labels. Packaging design can also be adjusted to match project or distributor requirements.
Certifications
Exhibition Moments
Frequently Asked Questions
Q1. Can this boiler thermostat control different heating systems?
This boiler thermostat is mainly designed for boiler heating control. Other versions in the same series support electric or water heating systems.
Q2. Does this boiler thermostat support Modbus integration?
Yes. This boiler thermostat supports RS485 Modbus communication. It allows connection to many building management systems.
Q3. Can an external sensor be used with this thermostat?
Yes. An external sensor can monitor floor temperature in heating systems. This helps prevent overheating in underfloor heating installations.
Q4. How should I select the correct model for my project?
The model code indicates heating type and communication function. Check the Guide section or confirm details before project deployment.
Q5. What is the minimum order quantity and can I get samples?
Samples are available for testing and evaluation. Typical MOQ is about 300 units. Smaller trial quantities around 100 units can be discussed.
Q6. How can I place an order and arrange payment?
Contact us to confirm requirements and receive a PI. Payment methods include TT, PayPal, or Visa. Shipping terms include EXW, FOB, or DAP.
Q7. How long does product preparation usually take?
Standard samples normally ship within seven days. Custom versions require evaluation and programming adjustments. Batch production of about 300 units usually takes around one month.
Q8. What shipping methods are commonly used?
Express delivery is commonly used and usually takes about seven days. Air freight takes similar time, while sea shipping usually exceeds one month.
Need Support?
If you are planning a heating project, feel free to contact us. We can discuss suitable boiler thermostat options and application details. To find out more, please click here (Heating Thermostat).
Final Note
Final Note
Heating projects require reliable temperature control and stable system operation. The HTW-WF11-NV2 boiler thermostat manages boiler heating control within room temperature systems. This helps maintain stable heating performance and supports efficient facility management.
