KTR-121.01 is designed to control the operation of one hot water boiler with an automated gas or liquid fuel burner. Suitable for high temperature boilers. Boiler regulator KTR-121.01 is recommended for upgrading or replacing outdated boiler cabinets. More about the entire KTR-121 line


  • Boiler supply temperature control.
  • Compatible with single, two stage or modulating burners.
  • Boiler water pressure control.
  • Burner feedback control.
  • Application with PT100/PT1000, 100M and NTC10k sensors.