GE Warm Air Furnace - Age??

[Erby]

Anyone want to take a stab at it. I'm guessing 83

From the furnace age chart:

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[AHI in AR]

I can't tell much from the overall photo but GE sold out to Trane in the 80's. My guess is somewhere in the mid 80's based on what I can see. Was there an ANSI date? It was a pilot light unit, right? What's the age of the home?

[Erby]

You have the whole data plate, no ANSI Date. Yes, pilot light. 50 plus on age of home.

[AHI in AR]

Then if the last 3 digits of SN are 304 as they appear to me I would think that '83 is correct also. Definitely an older style unit. (And by "overall photo" I meant the unit itself, not the tag.)

[Bill Kibbel]

I'd bet that furnace was manufactured before the date code made it into GE serial numbers. It really looks like 1960's. Separate manual B-valve for the pilot feed, right?

[kurt]

No ANSI # means pre-1976, doesn't it?

I'd say late 60's, early 70's.

[Brandon Whitmore]

I agree w/ the educated guess of the 60's era.

[inspector57]

Definitely older than the 80's.

I'm betting original to the house, 60's or 70's.

[Erby]

Given the house was built in 1963, I'd tend to agree with Bill and Kurt and Jim.

Didn't know about the ANSI dates starting in 1976.

You can learn so dang much here. A wonderful resource to have in the back pocket!

[kurt]

I think it's 1976, maybe a little earlier.

I've never read a definitive statement to that effect; I sort of figured it out back in the 80's when I noticed the new stuff had ANSI dates, and the old stuff didn't. I narrowed it down to (approximately) 1976 on my own.

Anyone know for sure? I've googled it but didn't find anything.

[mjr6550]

Looks like an oldie. How old is the house? Later GE furnaces have a 9 digit SN and the third from the end in the last digit of the year. The 9 digits are all run together. If that used a similar code then 1973, 1963, 1953 could be possibilities. Its hard to see details in that photo, but 1973 seems too new. The MN does not match anything in the 1967 to 1993 Carrier Blue Book, so earlier than that is likely.

I'm not looking at the photo now, but I think under gas type is said OPT-NAT. Optional? Could be from the transition period from mixed or manufactured gas (1950s-60s at the late end).

[Erby]

Mark, I think we've all pretty much settled on it being original to the house, built in 1963.

Other issues drove the buyer away though, so it's a cancelled contract.