Quick Summary
HTW-HT03P-3ANV1 is a house thermostat used in water heating or boiler heating systems. It controls heating through different output terminals. The programming function allows scheduled temperature control. Anti-freeze protection starts heating near 5°C to protect the system.
This page explains how the house thermostat works in heating projects. It describes the control functions and their practical meaning. Wiring and technical parameters help confirm installation conditions. Common project questions and possible custom options are also explained.
Key Functional Highlights
(This section introduces the main control functions and their engineering value in the specific HVAC system.)
(01) Water heating and boiler control
This house thermostat can control either water heating or boiler heating systems. Different terminals are used depending on the heating system. This allows the same thermostat model to work in different heating installations.
(02) Programmable temperature scheduling
Programming allows the house thermostat to control heating based on daily schedules. Temperature settings change automatically during the day. This reduces manual adjustment and helps improve heating efficiency in residential buildings.
(03) Anti-freeze protection logic
Anti-freeze protection starts heating when the room temperature approaches 5°C. This helps avoid freezing when buildings are empty. The function protects water heating pipes and keeps the system in safe condition.
(04) Positive or negative display option
The thermostat screen can be set to positive or negative display style. Users can choose the preferred screen appearance. This allows the house thermostat to match different interior design environments.
(05) °C or °F display option
The thermostat can show temperature in Celsius or Fahrenheit. Users can choose the preferred unit during configuration. This helps the boiler heating thermostat fit projects in different countries or markets.
If one also requires a Wi-Fi app control feature, this model can be referred to (click → HTW-HT03P-3ANV3 ).
Display
(This section shows the thermostat appearance, screen interface, or installation dimensions of this specific model.)
Specifications
(This section lists the key technical parameters relevant to this thermostat model.)
| Parameter | Value |
|---|---|
| Power Supply | 100–240Vac, 50/60Hz |
| 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 diagram for this thermostat in the relevant HVAC control system.)
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 |
| 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 describes project suitability, system limitations, and available customization options.)
This house thermostat is mainly designed for standalone heating control. It does not support BMS communication protocols. Wi-Fi or mobile app control is not included. Projects needing central building control should consider other thermostat types.
Despite these limits mentioned above, some function adjustments may still be possible. Communication interface or heating logic can sometimes be modified. These changes depend on project quantity and technical review. Our engineers can discuss suitable ODM options.
OEM customisation is also available for larger projects. Logo printing, colour options, and product labels can be changed. Packaging and manuals can also be adjusted. These changes help match the house thermostat with project branding.
Certifications
(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. Can this house thermostat work with both water heating and boiler heating systems?
Yes. The house thermostat supports both water heating and boiler heating control. Different terminals are used depending on the heating system connection.
Q2. Can this thermostat be used in electric underfloor heating systems?
No. This model is designed for water heating and boiler heating systems. Electric floor heating normally requires the 16A heating series version.
Q3. How does the thermostat decide when to start or stop heating?
The house thermostat measures room temperature using the internal sensor. Heating turns on or off according to the temperature set by the user.
Q4. How does the anti-freeze protection work?
When room temperature drops near 5°C, heating starts automatically. This helps protect water heating pipes during cold conditions when the building is not occupied.
Q5. What is the minimum order quantity and can I get samples?
Samples are available for testing and evaluation. The usual MOQ is about 300 units, but smaller quantities around 100 units can sometimes be discussed.
Q6. How can I place an order and arrange shipment?
Please contact us to confirm the required model and quantity. We will provide a performa invoice for payment by TT, PayPal, Visa or others. Shipping terms may include EXW, FOB, DAP, etc.
Q7. How long does product preparation normally take?
Non-custom samples normally ship within seven days. If customisation is required, we need to review the project and modify the program, which takes 3 to 5 weeks. Bulk orders of around 300 units normally require about one month.
Q8. What shipping methods are available?
Courier services such as DHL, FedEx, or UPS normally deliver within about seven days. Air freight has a similar transit time, while sea shipping usually takes one month or longer.
Need Support?
If your heating project needs a suitable house thermostat, please contact us. We can help confirm system compatibility and recommend the right thermostat.
Final Note
Heating systems require stable temperature control for reliable operation. In these projects, the house thermostat manages water heating or boiler heating circuits. This helps maintain steady indoor comfort and supports efficient heating management.
