Gibson Furnace

Does anyone know who makes Gibson gas Furnaces?
I’m looking for the age.

Serial #GLDO41003139
I think it’s a 2004 or maybe 2000?

Thanks,
Charles

**GIBSON: **[size=3]Name revived under license to
Nordyne
[/size]

I believe it’s a unit manufactured in 2000.

IF Gibson is Nodyne then it looks like Oct. 2004 re CD Technical reference guide.