Greg Booth Posted May 23, 2011 Report Share Posted May 23, 2011 Hello.........looking for manufacture date of: Magic Chef, Oil Furnace, Model- L6A84D-1, SN A11891GHB. Home built circa 1987. Thanks for any help..............Greg Quote Link to comment Share on other sites More sharing options...
Robert Jones Posted May 23, 2011 Report Share Posted May 23, 2011 My Preston's Guide dates the furnace anywhere between 1985-1988. You can pretty much bet that it is original to the home at 1987. Quote Link to comment Share on other sites More sharing options...
Greg Booth Posted May 24, 2011 Author Report Share Posted May 24, 2011 Thanks very much.............Greg Quote Link to comment Share on other sites More sharing options...
Brimar Posted May 24, 2011 Report Share Posted May 24, 2011 All have one letter, five numbers, then three letters. Last three letters are Date and Place of Manufacturer. First letter is the month, middle is year. year codes are: A = 1980, B = 1981, C = 1982 and so on until 1998. So yes this one is H = 1987. Quote Link to comment Share on other sites More sharing options...
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