Sears Wall Furnace

I need some help with a SEARS wall furnace. Serial #H75276342, Mod # 867-736433.

Thanks! in advance for your help.

That’s an interesting set of numbers.

The H7 in the serial number indicates August 1967. Coincidentally, the model number has 867 as the first three digits.

Thanks! I missed it by 8 years, I thought maybe it was a 1975.