Viessmann®

How to determine the date of production/manufacture or age of Viessmann® HVAC Systems.

The date of production/manufacture or age of Viessmann® HVAC equipment can be determined from the serial number located on the data plate.

Parent Company:  Viessmann

Example serial number styles/formats found:

  • Style 1:     73748610026311101

Style 1:   73748610026311101

Page last updated: 7/28/2017

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