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View Full Version : Is this GSW HW Tank over 30 yrs?


Peter Louis
10-07-2013, 04:42 PM
SN: 8306, Can not imagine it.
Jim Robinson
10-07-2013, 04:58 PM
It would not be unusual here, but every place has different water chemistry.
Mark Reinmiller
10-08-2013, 04:46 PM
SN: 8306, Can not imagine it.

Label is too small to read, but the water heater looks very old. In my area it is unusual, but not unheard of.
John Kogel
10-08-2013, 07:51 PM
Well water, no chlorine, yep, it looks like an '83
Raymond Wand
10-08-2013, 08:13 PM
Likely circa 2006.
John Kogel
10-08-2013, 09:20 PM
Likely circa 2006.Raymond you know this - GSW or John Wood, YYMM for the longest time.
Raymond Wand
10-09-2013, 04:18 AM
No, but I do now. ;)

How to determine the date of production/manufacture or age of an GSW® water heater. | Building Intelligence Center (http://www.buildingcenter.org/gsw-water-heater)

If in doubt, I always confirm age of unit with vendor.
H.G. Watson, Sr.
10-09-2013, 10:34 AM
Raymond you know this - GSW or John Wood, YYMM for the longest time.

For whatever reason I was thinking it was YYWW (year/week)...
Peter Louis
10-09-2013, 05:29 PM
thank you guys. that is way I like JH:D:D. A new HW Tank record high on my inspections.
John Kogel
10-09-2013, 07:36 PM
For whatever reason I was thinking it was YYWW (year/week)...You are correct, sir. I stand corrected.

I had a 2010 heater last week that was labeled installed this year. I reported both the manufacturers date and the "plumber's" label. Old stock is possible, I suppose, but 3 years in the warehouse? Not gonna happen.