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Sycamore Inn 08-09-2013 10:45 PM

State Industries Water Heater 1988
I bought my condo 3 years ago. Today at work we were discussing water heaters as one of the employees had to replace his yesterday. He said the heater was 10 years old.

That got me thinking about my water heater again which I decided not to drain and leave alone since purchasing the home. When I look at my water heater information it states Z21.10.1A 1988. PRV 40 Nort 6C, State Industries Asbury, TN.

Is this water heater REALLY 25 years old? And if so, how did the prior owner - who was the only owner - maintain the heater for this long? Upon discussion and research I'm afraid if I attempt to drain the heater it will fail due to it's age. It's not leaking and other than my water not staying hot until the end of a bath when I draw the water, it works fine.

Any advice on this?

Sycamore Inn

joecaption 08-10-2013 07:19 AM

Living on borrowed time on that one.
A whole lot cheaper to replace it then have the house flood when the bottom drops out.

rjniles 08-10-2013 08:57 AM

How long a water heater last is greatly affected by the water quality. Acidic water with lots of lime and iron is hard on the WH. With good quality water the heater can last a long time.


I sold my parents house in 1998 that had a 40 gallon GE electric water heater that was in the house when they bought it in 1957. That's 41 years plus how long the previous owner had it. But then again, they don't make em like the used to:)

Ghostmaker 08-10-2013 02:54 PM

You need the serial number for the date of manufacture. What your looking at is the standard date the tank meets.

Sycamore Inn 08-10-2013 06:33 PM

The serial number is G90340774.

TheEplumber 08-10-2013 06:57 PM


Originally Posted by Sycamore Inn (Post 1227646)
The serial number is G90340774.

I think that is July 1990- not 100% sure tho

Sycamore Inn 08-10-2013 10:15 PM

Thank you for the replies. I will call State Water Heaters and confirm the date. I will not replace a working water heater but I will have it drained. I agree with rjniles they don't make them like they used to.

Ghostmaker 08-10-2013 10:44 PM


Sycamore Inn 08-16-2013 09:20 PM

Update - I spoke with a reputable plumber and he recommended that I do nothing because I have far exceeded the life expectancy of the water heater and if we drain it now, it might start leaking. So that's that.

ben's plumbing 08-16-2013 09:26 PM


Originally Posted by Sycamore Inn (Post 1230266)
Update - I spoke with a reputable plumber and he recommended that I do nothing because I have far exceeded the life expectancy of the water heater and if we drain it now, it might start leaking. So that's that.

yep if its not broke don't fix it :thumbsup: ben sr

Peppe1019 08-19-2013 09:47 PM

Wow so your going to leave a 25 year old water heater!here is the most important reason why you should after 25 years due to safety factor, The pressure release valve after so many years is more than likely no good. If for some reason to much pressure would build up tank would explode like a bomb.For peace of mind I would replace.
Here are some secondary reasons why you should replace it. Waiting will result in a more costly replacement for a few reasons: (1) emergency replacement is more expensive than making an appointment ahead of time, (2) a water heater can cause serious damages when it does break, (3) you have time now to do your research and get the best system for your money, and most importantly, (4) there are special tax credits in 2010 that will return 30% of the cost of your water heater (up to $1500), assuming you are a US taxpayer.

Javiles 08-21-2013 08:48 PM

I love replacing busted water heaters in condos especially in the higher floors. great way to meet your neighbors by flooding them out. :jester:

biggles 08-22-2013 07:08 AM

extend the relief valve with a piece of pipe /pvc..then blow that off into a bucket that will clear the seat of as said the heater won't go up like a Titan II thru your roof :whistling2: is it electric or gas. if it is gas I would drain it and cycle water thru it the video is an extreme condition where the relief was plugged and the heating elements stat was by passed...the dial stat setting and the relief are there to cycle the drain or not to drain is the question:huh:

bbo 08-22-2013 07:32 AM

I don't get why people just leave water heaters alone when they determine they are older. Isn't that almost asking for it to fail when you are not around?

why not drain/inspect/replace anode? at the same time you can add a leak detector and auto shut off valve. Also when you turn the water back on and add pressure is the time it will most likely leak.

also I'd probably just get a new WH just to get some more efficiency/capacity as well.

Peppe1019 08-22-2013 08:02 AM

Certainly would not service a 25 year old wh, whats the purpose... Its well beyond its life expectancy and the t&p is most likey shot so if you did dump it probably would not reseal and would leak thats a can of worms you would be opening so best to just leave it.. Best advice dont touch it and replace it..

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