What age is this?

[AmeriSpecguy]

First time I have run across a Dayton water heater. My research has resulted in no helpful information. Can any of you gents tell me how old this is and how did you determine that.

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[hausdok]

Hi,

Somewhere around 1983 to 1986. I only say that because when I blew that photo up to about 400% of it's original size I could make out a 3 as the last digit of the year of tha ANSI standard and the next to last digit, although very hard to make out, has to be either a 6 or an 8. I don't think a water heater from 1963 would still be around in your part of the world and one from 1983 probably should have been replaced a decade ago.

ONE TEAM - ONE FIGHT!!!

Mike

[Jim Katen]

First time I have run across a Dayton water heater. My research has resulted in no helpful information. Can any of you gents tell me how old this is and how did you determine that.

How about the big 85 in the serial number?

[Bill Kibbel]

1985. They made it simple back then.

You can also confirm the date 'cuz it's stamped on the side of the gas valve and also on the tag of the TPRV.

[AmeriSpecguy]

As far as I could tell the big 85 is in the model number not the serial number.

And thanks guys I completely missed the little ANSI #. I guess it's time for me to check my prescription again.

[gtblum]

And I thought I saw some old ones last week.

Mine were only teenagers. The oldest was nineteen, and it looked like new.

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[Richard Moore]

As far as I could tell the big 85 is in the model number not the serial number.

I think the model number is the "3E104J" bit. I would guess that the complete serial number is actually "8522 131174" made up of two parts...the 8522 being year and week, and the 131174 being a "we've made this many" number.

BTW...I tried the ANSI at various magnifications. It's easiest to read at 150% and is almost definitely 1983.