Quick Summary
HTW-WT19P-WF is a Wifi smart thermostat designed for boiler heating systems. It consists of two parts: a receiver switch for safe heating, and a thermostat that communicates with the receiver via RF signal. It provides stable temperature control for daily heating use and supports Wi-Fi functions for smarter control.
This page explains how this wireless thermostat works in real projects. It covers the main features, wiring logic, and key parameters. It also includes typical questions and selection advice for reference.
Key Functional Highlights
(This section explains the main control functions and their practical value in boiler heating systems.)
(01) Black VA Screen (Clear Display)
The black VA screen provides strong contrast in different lighting conditions. It helps users read the temperature clearly at a distance. This wireless thermostat is easy to use in homes and small projects.
(02) 3A Output for Boiler Heating
The receiver supports 3A resistive load for boiler control. It provides stable on/off switching for heating demand. This wifi smart thermostat solution fits most residential boiler systems.
(03) Wireless Thermostat + Receiver Design
The system includes a thermostat and a receiver working together wirelessly. The receiver connects to the boiler, while the wireless thermostat controls it remotely. This design reduces wiring work and improves installation flexibility.
The wireless thermostat can be placed on a table or wall. It gives users easy access to temperature control. The communication distance can reach up to 100 metres in open space.
(04) Low Temperature Protection Function
When the system is off, protection still runs in the background. If the room temperature drops below 5°C, heating starts automatically. This wifi smart thermostat function helps prevent freezing risks.
(05) Wi-Fi Control and Programming
With Wi-Fi enabled, users can control heating through a mobile app. It allows remote adjustment and simple scheduling. This wifi smart thermostat improves daily convenience and energy use.
If this WiFi feature is not required, one may refer to this standalone model (no communication) instead (please click → HTW-WT19P).
Product Design and Display
(This section shows the thermostat appearance, screen interface, and installation details.)
Technical Specifications
(This section lists the key technical parameters relevant to this thermostat model.)
| Parameter | Value |
|---|---|
| Power Supply (Thermostat) | 2×AA Batteries or USB Type-C DC5V |
| Power Supply (Receiver) | 230VAC, 50/60Hz |
| Load | 3A (Resistive) |
| Temperature Accuracy | ±1°C |
| Set-Point Range | 5–90°C |
| Transmission Distance | 100m (open space) |
| Wireless Frequency | 433MHz, bidirectional FSK |
| Warranty | 2 Years |
Wiring Diagram
(This section provides the wiring diagram for this thermostat in a boiler heating system.)
Project Fit & Customization
(This section describes project suitability, system limitations, and available customization options.)
This wireless thermostat is not suitable for large BMS integration projects. It does not support Modbus or BACnet communication. Battery mode cannot support Wi-Fi functions. It is not designed for complex HVAC control systems.
Despite these limitations mentioned above, the working logic can still be adjusted. Some functions can be customised based on project needs and order quantity.
OEM options are available for branding and packaging. Logo printing and label customisation can be supported. Colour changes can also be discussed for larger orders.
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: Can this wireless thermostat work with all boilers?
It works with most boilers using on/off control. Please check the 3A load limit. For special systems, confirmation is recommended.
Q2: Does the wifi smart thermostat support remote control?
Yes, when powered by USB, Wi-Fi is available. We can control heating via the mobile app. Battery mode does not support this.
Q3: How far can the wireless thermostat communicate?
The distance can reach 100 metres in open space. Walls and obstacles will reduce this range. Stable communication depends on installation conditions.
Q4: Can I use external sensors with this model?
This model uses an internal temperature sensor. It does not support external probes. For floor sensing, another model is required.
Q5: What is the MOQ and can I get samples?
We support samples for testing. Standard MOQ is 300 units. Smaller trial orders like 100 units can be discussed.
Q6: How do I place an order?
Please confirm your requirements with us first. We will provide a PI for confirmation. Payment supports TT, PayPal, and Visa.
Q7: How long does production take?
Standard samples ship within 7 days. Customisation usually takes 3–5 weeks. Bulk orders like 300 units take around one month.
Q8: What shipping options are available?
Courier delivery takes about 7 days. Air freight is similar in time. Sea shipping takes around one month, depending on location.
Need Help Choosing the Right Model?
If you are comparing options, please feel free to get in touch with us. We can help match your project with the right thermostat~
Related Thermostat Models
For more thermostat models, please click here directly: Wi-Fi Thermostats | Modbus Thermostats | BACnet Thermostats
Final Note
In boiler heating projects, stable temperature control is important for comfort and safety. This wireless thermostat controls heating through a receiver and RF communication. The wifi smart thermostat also improves remote access and makes daily operation more convenient.
