Boiler Age Calculation

Please enter the alphabetic character from the serial number:

Calculate Age Reset

Please enter the first 4 digits of the serial number for Vaillant, Glow-Worm, or Heatline boilers:

Calculate Age Reset

Please enter the first 7 characters of the serial number (3 Letters, 4 numbers):

Calculate Age Reset

Example serial number: 1234-XXX-0000123. Please enter the 3 numbers in place of XXX:

Calculate Age Reset