How can I tell the age of an Intertherm water heater from the serial number?

Tuesday, April 30, 2019

The third and fourth numbers in the serial number are the year of manufacture for an Intertherm water heater. So the data plate shown above indicates it was manufactured in 1985.

    Also, see our blog posts How can I determine the age of a water heater if the serial number is missing or decoding it is impossible? and What are the most common installation mistakes with water heater replacement? and Are water heaters required to be raised off the floor? and What's that powdery crust on the pipe connections at the water heater? 



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