Quick Summary
HTW-WF11-NV1 is a boiler thermostat designed for boiler heating systems using dry contact control. The programmable thermostat manages room temperature by switching the boiler through non-voltage terminals. It supports weekly programming and external floor sensing. These functions help maintain stable heating while reducing unnecessary boiler operation.
This page explains how the boiler thermostat works in real installations. It also introduces wiring reference, technical parameters, and model code meaning. Readers can check installation details and programming logic. Project teams may also explore possible configuration discussions for specific applications.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
1. Boiler Heating Control
The boiler thermostat uses dry contact terminals to switch the boiler on or off. This control method keeps the thermostat electrically isolated from the boiler circuit. It is widely used in boiler heating installations where simple and reliable switching is required.
If the Wi-Fi feature is also required, one may refer to this model (HTW-WF11-NV3).
2. Weekly Programming Function
The programmable thermostat allows users to define heating schedules across the week. Temperature levels can automatically change according to daily time periods. This reduces manual adjustment while improving comfort and maintaining stable heating conditions.
3. External Sensor Protection
An external sensor can be connected to detect floor temperature in underfloor heating applications. The boiler thermostat monitors this value and limits excessive floor heat. This helps prevent overheating and protects floor materials in long heating cycles.
4. Energy Saving Mode
Energy saving mode allows the programmable thermostat to maintain a reduced temperature during unoccupied periods. The boiler thermostat automatically lowers heating demand when full comfort is not required. This function helps reduce boiler running time and energy consumption.
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 or boiler 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 & Customisation
(This section explains where the product can be used, its limits, and OEM/ODM options.)
HTW-WF11-NV1 is designed for boiler heating control through dry contact switching. It is not intended for direct electric floor heating loads. The model is a standalone boiler thermostat and does not support BMS communication, remote monitoring, or Wi-Fi app control.
Despite these limits mentioned above, certain functional discussions remain possible. Communication interfaces or control logic may be reviewed for project requirements. Final feasibility depends on system compatibility and technical confirmation.
OEM cooperation is also supported for project branding. Options may include logo printing, colour changes, and customised packaging labels. These adjustments do not affect the core control structure and are commonly used in distributor or project supply arrangements.
Certifications
Exhibition Moments
Frequently Asked Questions
Q1. What heating system is this boiler thermostat designed for?
This programmable thermostat is designed for boiler heating systems using dry contact control. It switches the boiler through non-voltage terminals and manages room temperature through programmed heating schedules.
Q2. Is this boiler thermostat suitable for BMS integration?
This model is a standalone programmable thermostat. It does not include Modbus communication or network connection, so it is not intended for BMS or central building control integration.
Q3. What is the minimum order quantity and can samples be provided?
Samples are available for testing. The typical minimum order quantity is around 300 units, although smaller trial quantities may be discussed depending on project conditions.
Q4. How can we place an order?
Please get in touch with us with your project requirements. After confirmation, we will provide a proforma invoice. Payment methods include TT, PayPal, and Visa, with terms such as EXW, FOB, and DAP.
Q5. What shipping methods are usually recommended?
Courier door-to-door delivery is commonly recommended and usually takes about seven days. Air freight is similar, while sea shipping normally takes one month or longer, depending on the destination.
Need Support?
If you are evaluating a boiler thermostat for a heating project, feel free to contact us. We are glad to assist with model selection, wiring reference, and application discussions.
