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Terma DTIR Infrared Daily Electric Radiator Controller

Free Delivery on all UK mainland orders


The DTIR is of simple and minimalist design, it is light and easy to use with a clear blue display.


Available in White and Silver.


The DTIR is a daily portable or wallmounted programmable controller. It allows precise adjustments in room temperature in increments of 0.5°C for your Terma radiator heating element. The DTIR displays both the set and the room temperature and works with a number of different modes, manual, automatic, dryer and antifreeze. It can also be programmed in two temperature zones, economic and comfortable and the user has the ability, if required to calibrate the electronic temperature sensor.

Timer and Dryer

The daily timer allows you to program the device (turning on and off) in 15 minute intervals within a 24 hr period. During these timed intervals the DTIR can work in either economic or comfort modes. The dryer function operates from 15 minutes up to 4 hours. After the timed period of drying the DTIR will return to its previously set function relevant to the time of day.

Remote Control

The programmer works wirelessly with a range of Terma electrical elements and controllers that are equipped with an IR receiver (ONE and KTX 4). The DTIR can control multiple heating elements in one room.

Intelligent Building System

The DTIR is battery powered and does not require an external power supply.


The DTIR is equipped with a ‘frost’ protection mode (ANTIFREEZE) to protect the radiator from the effects of freezing.


  • Remote control of KTX 4 and ONE heating elements
  • Multifunction daily timer
  • Ambient temperature control
  • Dryer function
  • Thermometer calibration
  • Elegant blue display
  • Lightweight and portable
  • Can control a number of heating elements in one room simultaneously

Manufacturers guarantee on all products.