Quick Summary
The HTW-WF01-NV1 Gas Boiler Thermostat is designed for indoor boiler heating systems. It controls heating through a non-voltage dry contact output. The thermostat works with a 100–240 Vac power supply. Built-in sensing and external sensor support help manage room temperature safely.
This page explains how the Gas Boiler Thermostat works in practical heating installations. It describes control logic, wiring reference, and key parameters. Model code meaning and installation notes are also introduced. OEM and ODM options for the Gas Boiler Thermostat may also be discussed.
Key Features
(The core control functions and their practical value.)
1. Boiler Heating Control Output
This Gas Boiler Thermostat uses a non-voltage dry contact signal. The contact sends a start or stop command to the boiler. This control method is common in residential heating systems.
2. Programmable Temperature Schedule
The thermostat supports programmable heating periods during the day. Users can set several temperature levels for different time blocks. This helps keep comfort while reducing unnecessary heating operation.
3. Multi-Language App Interface
The control application supports seventeen mainstream interface languages. This allows easier operation for users in different regions. Language settings remain synchronised inside the mobile application.
4. External Temperature Sensor
An external sensor can be connected when needed. The sensor measures temperature in another location of the room. This helps improve temperature control in larger heating spaces.
Product Design and Display
(The thermostat appearance and interface layout to fully grasp the display effect and performance of the thermostat in real-world use)
Technical Specifications
(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 type; 16A for electric floor heating type |
| Built-in Sensor | NTC3950, 10K |
| Setpoint Range | 5–35°C |
| Installation | 86×86 mm junction box or EU round box |
| Protection Class | IP20 |
| External Sensor | Supported |
| Warranty | 2 years |
Wiring Diagram
(Clear wiring references to help you complete the installation quickly and correctly.)
Model Code Guide
(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-WF01-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
(Where the product can be used, its limits, and OEM/ODM options.)
This Gas Boiler Thermostat is designed for boilers using dry contact signals. It cannot directly drive electric floor heating loads. Systems requiring high voltage switching should use other thermostat types. Installations needing Modbus communication or BMS integration also require other models. Outdoor locations and wet areas may require higher protection ratings.
Despite these limits mentioned above, ODM cooperation may still be discussed. Communication type or control behaviour may be adjusted for some projects. Our engineers normally review wiring conditions and heating system structure first. After evaluation we suggest practical solutions suitable for the project.
OEM customisation is also supported for brand projects. Logo printing on the thermostat panel can be arranged. Packaging design and product labels may also be customised. These options help the Gas Boiler Thermostat match different market and branding requirements.
Certificates and Compliance
This thermostat complies with European market requirements and is supported by certifications such as CE, RoHS, LVD test reports, EMC test reports, etc
Exhibition Moments
Our team regularly participates in international HVAC exhibitions such as Febrava in Brazil, The Big 5 in Dubai, and ISK-SODEX in Turkey, etc.
Frequently Asked Questions
Q1. What systems can this Gas Boiler Thermostat control?
It is designed for gas boiler heating systems. The thermostat sends an on or off signal to the boiler control input.(if you’re looking for Water heating system, click here)
Q2. Does the thermostat support programmable heating schedules?
Yes. Users can set several heating periods during the day. This helps balance comfort and energy consumption.
Q3. Is the thermostat compatible with standard wall boxes?
Yes. The thermostat fits 86×86 mm junction boxes and EU round wall boxes used in many heating installations.
Q4. What is the minimum order quantity and are samples available?
Samples are available for testing. The usual minimum order quantity is about 300 pieces, though smaller trial quantities may be discussed.
Q5. How can we place an order?
Please contact us with your requirements. After confirmation we issue a proforma invoice. Payment methods include TT, PayPal, Visa and similar options.
Q6. How are the products usually shipped?
Express delivery usually takes about seven days. Air freight takes similar time. Sea shipping normally requires more than one month.
Need Support?
If you need help selecting a Gas Boiler Thermostat for your project, please contact us. Our team can assist with wiring review and model selection.
Related Thermostat Models
More product details, please click directly:
Water Heating Thermostat
Electric Underfloor Heating Thermostat
