We have a Heil High Efficiency SP80 furnace. Model# NUG5125BKB2. How do I find the date of manufacture and/or date of installation? Direct eMail [email protected]
hvac1000
Mar 29, 2008, 04:38 PM
Best to call Heil on this one. Also check the serial number. It contains the date of mfg.
tsa7man
Mar 30, 2008, 07:43 PM
Post the serial number... it is the date code, which is only the date it ran off the assembly line...