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FAQ Type: [ General ] [ HVAC Definitions ] [ Misc ]

I have an old Reznor Heater. How can I determine exactly how old it is?

Most Reznor HVAC Equipment built since 1949 has received an individual Serial Number. The Serial Number can be found on the furnace section of the heater on the Unit Rating Plate.

The first two or three letters in the serial number will indicate the month and year of manufacture. Please see the Serial Number Table for more information.

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