The Terma KTX 4 BLUE heating element controller is the most advanced radiator heating element controller to date. It provides precise control over the temperature of your radiator with increments of 1 degree C when controlled via the Blue Line mobile phone application.

The heating element can be fully controlled through the BLUE-Line control mobile application via Bluetooth. The mobile application allows you to control both the temperature of the radiator (30-60 ° C) and the room temperature (15-30 ° C); program any number of 7-day schedules; program advanced timer.

The buttons on the controller’s housing allow you to set the operating temperature in a simplified way or run a simplified Timer (up to 4 hours). The device displays the currently set temperature level and indicates the status of the heating cycle or standby mode. The KTX 4 BLUE is designed to use with the TS 1 heating element. The unique feature of the KTX range of heating elements is the Terma-Split System. The Terma-Split connector makes it possible to disconnect the TS 1 from the controller head. More information on the TS 1 can be found on page 488. The KTX 4 BLUE is also equipped with actual heating time counter for energy consumption calculations. 

• 5 temperature settings that range from 30°C to 60°C

• Dryer mode with the option to program both required power and heating cycle time (1h – 4h)

• Heating time meter for energy consumption calculation

• Available in 4 colours: white, chrome, silver and black

• The KTX4 Blue is designed for use with the Terma-Split heating element, giving an option of disconnecting the controller from the heating element

• ANTIFREEZE function, protects your radiator in case the ambient temperature falls below 5 – 7°C

• Symmetrical casing allows you to install the element both on right or left hand sides.

 Do not use the heating element in heating systems where the water temperature exceeds 82° C.

 The Terma KTX4 Blue equipped with Bluetooth® module allows:

• Wireless communication with the mobile application

• Programming any required number of heating cycles

• Controlling room temperature based on readings from an external temperature sensor (in development), which is an alternative to standard radiator temperature readings.