Life expectancy of electronic gas valves ? (tank, install ...

 

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06-07-, 09:48 AM greglovesoldtrucks  

Location: KY

577 posts, read 493,266 times

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Our 40 gallon gas water heater died 3 days ago and I found the electronic gas valve (EGV ) had failed on it. After I made a few calls, I found that with the price of next day air shipping and tax, that a new EGV would be half the cost of a new gas water heater.

So with our WH being 10 years old, I just bought a new AO Smith WH and installed it, as we needed hot water. Because waking up to find NO hot water for a shower ... is a natural disaster to me at least.


I have a feeling our new AO Smith WH tank/burner assembly will outlast its EGV. So I wonder if it is a good idea for a person to later on, maybe just get a spare EGV unit to keep on hand ? Or would it be a waste of $$$ ?

The pic is of the new A O Smith 40 gallon WH's EGV...

Last edited by greglovesoldtrucks; 06-07- at

10:05 PM

..

 

06-07-, 10:04 AM Quietude  

Location: Aurora Denveralis

8,712 posts, read 6,751,934 times

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Water heaters wear out in various ways. I think the consensus is to replace them at 10-12 years, especially if they have any failure after about 8 years. Sure, some last 20-25-30 years, but a failure can be so inconvenient (and potentially destructive) that I would have replaced the whole thing on such a major component drop.

 

06-07-, 11:12 AM greglovesoldtrucks  

Location: KY

577 posts, read 493,266 times

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I did replace our failed WH.

I guess I was going by the old WH's with the old style gas control valves on them that were lasting 12- 20 years. So my new WH will probably be dead at 10 years anyway, so having a spare EGV is moot ? It has a 6 yr warranty on the tank only. One year only on the other parts.

I did replace our failed WH.I guess I was going by the old WH's with the old style gas control valves on them that were lasting 12- 20 years. So my new WH will probably be dead at 10 years anyway, so having a spare EGV is moot ? It has a 6 yr warranty on the tank only. One year only on the other parts.

 

06-07-, 11:15 AM Quietude  

Location: Aurora Denveralis

8,712 posts, read 6,751,934 times

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I'm sorry, I misread your post as having replaced the valve, not the heater. I blame low caffeine and my dog.

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06-07-, 11:50 AM rational1  

3,607 posts, read 7,915,344 times

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Every single part can fail. However I have not heard of gas valves as being a particular weak spot. Most hot water heaters seem to fail by corrosion-induced leaks. Certainly this has been my experience (sample size = 1).

No, I wouldn't buy a spare gas valve.

 

06-07-, 12:15 PM greglovesoldtrucks  

Location: KY

577 posts, read 493,266 times

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Even if I did install one those new WH units that does not heat hot water, as it stops heating when the water gets hot.

Sorry Rational...I just HAD to &#;..

Yeah, I agree in retrospect that stocking a $260.00 EGV will be a poor gamble for me.Even if I did install one those new WH units that does not heat hot water, as it stops heating when the water gets hot.Sorry Rational...I just HAD to &#;..

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