Quick Summary
The HTW-WF11-16A2 electric heating thermostat is designed for electric underfloor heating systems. It measures room temperature and regulates heating output. RS485 Modbus communication allows connection with building management systems. An external sensor monitors floor temperature and prevents overheating.
This page explains the engineering use of the electric heating thermostat in heating projects. It describes control functions, wiring reference, and technical parameters. It also outlines project suitability and possible customisation. Typical installation questions and answers are included.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
1. Electric floor heating control
The electric heating thermostat controls electric underfloor heating systems in residential or light commercial rooms. It regulates heating according to the measured temperature and the user setpoint. Stable control helps maintain comfortable room conditions and avoids unnecessary heating operation.
2. RS485 Modbus communication
The electric heating thermostat supports RS485 Modbus communication for project integration. It allows a central controller to read temperature values and adjust operating parameters. This communication method is widely used in building automation and energy management systems.
If the Modbus feature is not needed, one may refer to this Wi-Fi electric heating thermostat instead (click → HTW-WF11-16A3).
3. External floor temperature protection
An external sensor can monitor floor temperature inside the heating structure. The electric heating thermostat compares this value with the safety limit. This helps prevent floor overheating and protects floor materials in electric underfloor heating systems.
4. Time display and daily use reference
The thermostat includes a simple time display for daily operation reference. It allows users to check time without additional devices. The display also helps maintenance staff quickly verify system status during inspections.
Display of Modbus Thermostat
(This section shows the product’s different angles, dimensions and the interface layout.)
Technical Specifications
(This section lists the key parameters for reference and project confirmation.)
| Parameter | Value |
|---|---|
| Power Supply | 100–240 VAC, 50/60 Hz |
| Output Load | 16A for electric heating type |
| Built-in Sensor | NTC3950, 10K |
| Setpoint Range | 5–35°C |
| Installation | 86×86 mm box or EU round box |
| Warranty | 2 years |
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 / 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 electric heating thermostat is not suitable for water heating systems, boiler heating systems, or high-current heating equipment above 16A. It is also not designed for humid or outdoor environments. Projects requiring BACnet or wireless control cannot use this Modbus model directly.
Despite these limits mentioned above, functional modification can be discussed for projects. Communication protocol or interface logic may be adjusted through ODM development. Engineering teams can evaluate integration with specific building control systems.
OEM cooperation is also available for project supply. Logo printing, label design, and packaging changes can be arranged. Colour adjustment and customised documentation are also possible according to project requirements.
Certificates and Compliance
Exhibition Moments
Frequently Asked Questions
Q1. Can this electric heating thermostat control electric underfloor heating systems?
Yes. This electric heating thermostat is designed for electric underfloor heating. It switches the heating load based on temperature setpoint and sensor feedback.
Q2. Does the thermostat support floor temperature protection?
Yes. An external sensor can measure floor temperature. The thermostat limits heating output when the floor temperature reaches the safety threshold.
Q3. Can this thermostat connect to a building management system?
Yes. RS485 Modbus communication allows integration with many building automation systems. The central controller can read temperature data and adjust operating settings.
Q4. How should I select the correct model for heating systems?
Different heating systems require different output types. Electric floor heating normally uses the 16A version. Water or boiler heating usually uses 3A or dry contact versions.
Q5. What is the minimum order quantity and can I get samples?
Samples are available for testing and evaluation. The usual minimum order quantity is about 300 units. Smaller trial orders around 100 units may also be discussed.
Q6. How do I place an order and arrange payment?
Contact us to confirm the model and project requirements. We will provide a proforma invoice. Payment options include TT, PayPal, and Visa. Trade terms may include EXW, FOB, or DAP.
Q7. How long does product preparation usually take?
Standard samples normally ship within seven days. Customised models require engineering evaluation and software adjustment. Small batch production usually takes three to five weeks.
Q8. What shipping methods are usually used?
Courier delivery such as FedEx, DHL, or UPS usually takes about seven days. Air freight also takes about one week. Sea freight normally requires more than one month.
Need Help Choosing the Right Model?
If you are planning an electric heating project, our engineers can assist. Please contact us to discuss heating system design, thermostat selection, and Modbus integration.
Related Thermostat Models
To find out more, please click here (Heating Thermostat).
Final Note
Electric heating projects often require stable temperature control and safe floor temperature protection. The HTW-WF11-16A2 electric heating thermostat manages electric floor heating through temperature sensing and load switching. This control approach supports reliable heating operation and improves long-term energy management in building projects.
