Quick Summary
HTW-HT03P-16A1 is a room thermostat for Electric Underfloor Heating systems. It controls heating output based on room temperature and floor sensing. Wi-Fi app control allows remote setting and monitoring. External sensor protects the floor from overheating during operation.
This page explains how the room thermostat works in heating projects. It includes control logic meaning, wiring reference, and key parameters. It also outlines customization options and project limits. Typical questions and answers are provided for engineering selection.
Key Functional Highlights
(This section introduces the main control functions and their engineering value in Electric Underfloor Heating systems.)
(01) Electric Underfloor Heating Control
This room thermostat controls electric floor heating directly through its relay output. It keeps the room temperature close to the set value. This helps maintain a steady indoor climate and avoids unnecessary heating cycles.
If another type of thermostat, like water heating or boiler heating type, is required, one may refer to this model instead (click → HTW-HT03P-3ANV3).
(02) Load Options Selection
This room thermostat supports three load levels for Electric Underfloor Heating systems. Low is up to 1.5 kW, medium is 1.5 to 2.6 kW, and high is 2.6 to 3.5 kW. This helps match the heating power to different room sizes and improves system stability.
(03) External Floor Sensor Protection
The external sensor measures floor temperature separately from room air. It helps prevent the floor from getting too hot. This is useful for protecting floor materials and keeping heating stable over time.
(04) Anti-Freeze Function
The thermostat starts heating when the temperature drops to around five degrees. This helps prevent very low temperatures during empty periods. It keeps the space safe and avoids potential damage in cold conditions.
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 | 16A for Electric Underfloor Heating |
| Built-in Sensor | NTC3950, 10K |
| Setpoint Range | 5~35°C |
| Installation | 86×86 mm 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 & Customisation
(This section describes project suitability, system limitations, and available customisation options.)
This room thermostat is not suitable for low-voltage systems below 24V. It does not support BMS integration, such as Modbus. It is designed mainly for Electric Underfloor Heating control, not for water heating or boiler systems.
Despite these limits mentioned above, ODM customisation can be discussed. Communication protocol, control logic, or sensor type may be adjusted. We evaluate project needs before confirming feasibility. Custom changes depend on quantity and engineering requirements.
OEM customisation is also supported for branding and appearance. Logo printing, housing colour, and packaging can be modified. Label information and manuals can be adapted. These options help align the product with project or market needs.
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. Is this room thermostat suitable for Electric Underfloor Heating systems?
Yes, it is designed for Electric Underfloor Heating applications. The 16A output supports direct control of heating cables. It ensures stable temperature control.
Q2. Can the thermostat use both room and floor temperature sensing?
Yes, it includes a built-in sensor and supports an external floor sensor. The floor sensor helps prevent overheating. This improves safety and system stability.
Q3. Does this thermostat support remote control?
Yes, Wi-Fi allows control through a mobile application. Users can adjust settings remotely. This supports flexible management in Electric Underfloor Heating projects.
Q4. How to select between the 3A and 16A models?
The 16A model is used for Electric Underfloor Heating loads. The 3A version is for water or boiler systems. Selection depends on heating type and load requirement.
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. Smaller trial quantities such as 100 units can be discussed.
Q6. How to place an order and arrange shipment?
Contact us to confirm requirements and receive a PI. Payment supports TT, PayPal, and Visa. Delivery terms include EXW, FOB, and DAP.
Q7. How long does production take?
Non-custom samples are shipped within seven days. Custom orders need evaluation and program adjustment. Bulk orders of around 300 units usually take one month.
Q8. What shipping methods are available?
Express delivery takes about seven days to the door. Air freight is also around seven days. Sea freight may take over one month, depending on project needs.
Need Support?
If you are planning an Electric Underfloor Heating project, feel free to contact us. We can help you choose the right room thermostat and confirm application details.
Final NoteElectric heating systems require stable temperature control and safe operation in daily use. This room thermostat provides reliable Electric Underfloor Heating control for indoor spaces. It supports energy management and helps maintain consistent comfort in heating projects.
