Year of Air Furance

system · April 19, 2009, 1:06pm

would like to find out the age of our house forced air furance ? the model # is GLF 140 B 48 E5. Serial No. 76 D 17880.
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iniquette · April 19, 2009, 2:47pm

You will probably find an answer here, but we may need the brand name of the unit first.

system · April 19, 2009, 3:04pm

the brand name is Tappan

bhartley · April 19, 2009, 3:35pm

Preston’s Guide says the unit was made between 1975 & 19977, TAPPAN when bankrupt in 1982.

system · April 19, 2009, 3:40pm

Thank you!

ccurrins · April 19, 2009, 6:43pm

Tappan: Age is the last 3 characters (digits and letter) of the serial number for the year and month of manufacturer.
Example: xxxxx85C = March 1985. (I not used)