Furnace help please

Misplaced my Prestons. I need age on Comfortmaker/Singer gas furnace M# - G-H801-12M…also AFUE if available.


From what got about anyway, Sounds a little old perhaps someone has a update for you.

Thanks Wayne

Wayne, Unfortunately that date is too old. The house was built in 1983. I cannot locate anything close to the numbers in my Preston’s. Heil, International Comfort or Comfortmaker. The numbers just don’t jive. anybody else have any suggestions.?

It is not uncommon for a home to have appliances that are older than the house. . .

Hey Jeff,
I know that, but still the model number does not match up with anything I find in Prestons or on-line.