HOW TO FIND MODEL NUMBERPost created: 2013-01-14 Type of Equipment: Furnace Views: 423
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On 2013-01-15 JB wrote:
You should be able to find the model number on a plate attached to the furnace. Sometimes these are located behind a cover panel on the front of the furnace.
You can also learn what model numbers indicate here: http://www.lennox.com/pdfs/Lennox_Model_and_Serial_Nomenclature.pdf.