Quick Summary
The HTW-WF02-NV1 Water Gas Boiler Heating Thermostat is designed for boiler heating systems. It works with water heating or gas boiler installations. The thermostat uses a non-voltage dry contact output for boiler control. It measures room temperature and switches the boiler heating circuit when needed.
This page explains how the Water Gas Boiler Heating Thermostat works in typical heating projects. It covers control functions, wiring reference, technical parameters and configuration meaning. It also explains project customisation possibilities and common questions from installers and system integrators.
Key Functional Highlights
(This section explains the core control functions and their practical value.)
(01) Dry contact boiler control output
The Water Gas Boiler Heating Thermostat uses a non-voltage dry contact output. This design allows safe connection with most boiler control terminals. Installers can connect the thermostat directly to the boiler signal circuit. Please refer to this link if you need thermostat for underfloor heating system: HTW-WF02-3A.
(02) Stable room temperature regulation
The thermostat constantly measures indoor temperature using the internal sensor. When temperature falls below the set value, heating starts automatically. The Water Gas Boiler Heating Thermostat keeps the room temperature stable.
(03) Clear negative LCD interface
The thermostat uses a negative screen with white UI and white backlight. Temperature and working status are easy to read. The interface is simple, helping users operate the Water Gas Boiler Heating Thermostat easily.
(04) Standard electrical box installation
The thermostat fits EU or standard electrical wall boxes. Installers can mount the device easily in most buildings. This simplifies installation work during heating system deployment.
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 | 95–240 Vac |
| Frequency | 50/60 Hz |
| Temperature 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 |
| Protection Class | IP20 |
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 |
| 1/3 | 1 = Standalone, 3 = Wi-Fi |
| Example | 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 Water Gas Boiler Heating Thermostat is not designed for electric floor heating systems. It also does not provide line voltage output for heating cables. The thermostat works as a standalone control device and does not support BMS integration or building automation communication.
Despite these limits mentioned above, some ODM functions can still be discussed. Communication protocols, interface layout or firmware settings may be adjusted for specific projects. However, each modification requires technical confirmation and production feasibility review.
OEM cooperation is also supported for brand partners and distributors. Options include OEM logo printing, colour changes, customised labels and packaging design. These services help partners integrate the thermostat into their own heating product portfolio.
Certifications
Exhibition Moments
Frequently Asked Questions
Q1. What systems can this Water Gas Boiler Heating Thermostat control?
It is designed for water heating systems and gas boiler heating systems using dry contact control.
Q2. Does the Water Gas Boiler Heating Thermostat supply voltage to the boiler?
No. The thermostat uses a non-voltage dry contact output for the boiler control signal.
Q3. Can the Water Gas Boiler Heating Thermostat be used with electric floor heating?
No. Electric floor heating systems require a line voltage output thermostat.
Q4. What is the minimum order quantity and are samples available?
Samples are available. Normal MOQ is around 300 units, but smaller trial quantities may be discussed.
Q5. How can we place an order?
Please contact us first. After confirming requirements, we will provide a proforma invoice. Payment methods include TT, PayPal, Visa and others.
Q6. How are the products normally shipped?
Courier delivery usually takes about 7 days. Air freight is similar. Sea freight normally takes over one month depending on destination.
Need Support?
If you are selecting a Water Gas Boiler Heating Thermostat for a heating project, please contact us. Our team can help confirm compatibility and system configuration.
