furnace date for Air ease?

Specific Inspection Topics Inspecting HVAC Systems
1

Anybody help me with the date of this Air Ease furnace date?
Serial # 8400m11991

thanks

2

1991 or 1984 right? What year was the home built?

3

December 2000

4

1973

5

http://www.buildingcenter.org/Aireflo-age

6

That’s what I was looking at but questioned the 84th week?

7

There is a bad link at Buildingcenter.org. I have already reported it to Dale and Will.

I posted the correct information below. December 2000.

8

Thanks Stephen