Description
TERMOFOL TF-H3 Manual Thermostat – Reliable temperature control with a rotary knob
The TERMOFOL TF-H3 is a robust and easy-to-use manual thermostat for electric underfloor heating. This model is ideal for users who prefer classic operation, direct control, and maximum reliability. The clear dial allows you to quickly and accurately set the desired temperature without complicated menus or settings.
Thanks to the built-in safety features and the accurate floor temperature sensor, the TF-H3 provides stable and safe operation in any room.
Smart features for comfort and safety
Precise temperature control
The mechanical dial allows you to easily set a temperature between 5°C and 35°C , with a control deviation of only ±1°C . This maintains consistent comfort and prevents unnecessary energy consumption.
Built-in floor sensor
The thermostat comes with an NTC B3950 10K floor temperature sensor , which continuously measures the temperature and ensures optimal operation of the heating system.
Anti-freeze function
The special frost protection mode automatically maintains a low temperature to prevent pipes and floors from freezing. This mode is easily activated using the snowflake symbol on the dial.
Mechanical temperature limitation
The integrated red and blue adjustment pins allow you to mechanically limit the minimum and maximum temperatures. This increases safety and prevents unwanted adjustments.
Automatic temperature reduction
The TF-H3 features a switchback function that automatically lowers the temperature when full heating is not required. The default temperature reduction is 6°C , adjustable between 2 and 8°C , contributing to energy savings.
LED status indication
The integrated LEDs show the thermostat status at a glance:
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🔴 Red – heating active
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🔵 Blue – Anti-freeze mode
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🟢 Green – standby
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🟡 Yellow – temperature reduction active
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🔴 (flashing) – sensor failure
Technical specifications
| Characteristic |
Specification |
| Power supply |
120–240 V AC / 50–60 Hz |
| Temperature range |
5 °C – 35 °C |
| Rule deviation |
±1 °C |
| Maximum load |
16 A / 3600 W |
| Recommended load |
Max. 90% of 16 A |
| Temperature sensor |
NTC B3950 10K (floor sensor) |
| Protection class |
IP31 |
| Total dimensions |
84 × 84 mm |
| Dimensions without frame |
57 × 57 mm |
| Assembly |
Built-in |
| Compatibility |
Suitable for 56 × 56 mm frames (including Schneider Exxact) |
Easy installation and operation
The TF-H3 is mounted in a standard flush-mounted box and connected via a clearly laid-out terminal block for power, heating cable, and floor sensor. Operation is intuitive: simply turn the knob to select the desired temperature.
Conclusion
The TERMOFOL TF-H3 is an excellent choice for those looking for a reliable, manual thermostat without unnecessary complexity. With its precise control, anti-freeze function, and mechanical protection, it offers comfort, safety, and energy efficiency for electric underfloor heating.
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