In alt.home.repair, on Sat, 8 Oct 2022 06:40:24 -0700, Bob F
To save you from reading all my research on this, this section, I'll
tell you that I feel like I'm in the Twilight Zone. No evidence so far
of anybody making vinyl lined tanks, whether they called them
glass-lined or not.
It's conceivable the one I took apart was not labeled glass-lined. I
might have thought it was because the one I had just installed had that
label. Hmmm. If I'd known that some ARE glass lined, I wouldn't have
been so willing to accept the one with the crushed top and the input
pipe being no longer perfectly vertical. I figured that couldn't hurt
vinyl but it could hurt glass.
Could the glass chip and get into my hot water? I'd hate to get the
glass in my washcloth and then try to wash myself. Once in college I
pulled a piece of paper out of my wastebasket to make a paper wad for
throwing, and I'd forgotten that a thermometer in a broken glass tube
was in the trash and I cut up my hands wadding the paper. Not badly
but in several places.
Sears is out of business I think, so that will make it harder***, but I
plan to look. But if I do find the very same model, it might merely
say, "glass-lined" with no description of what that means. AFAICR,
that's what it said when I first bought one or more of them.
***But google proved me wrong:
This page only has 15 electric water heaters
I pickewd one at random
and it says it's a "gray water heater" ??????????????? Who needs
that? And how come it doesn't say that on the summary page, only the
detail page. It sounds like something important.
Den't read this. Only included because it shows that AOSmith was/is one
of the makers of Sears WHs.
So I used another tack and looked for glass-lined, and by golly, one is
But it doesn't say anything about the lining.
There there are 114 under the home-depot section glass-lined tank:
But it doesn't say what that means.
But I found
Are A. O. Smith water heaters glass lined?
A. O. Smith changed the water heater market over 80 years ago by
introducing the glass-lined tank for all tank water heaters. By lining
the inside of the water heater with glass, heat stays within the tank
and protects the steel exterior from rusting and becoming a safety risk.
It sounds like it's real glass.
>>> I've always assumed that "glass lined" meant fiberglas. I don't see
>>> how it's possible to put actual glass inside a steel tank and not
>>> break it during shipment, nor do I see what advantage there would be.
>>> Also expansion and contraction from cold water being heated would seem
>>> to be a problem. Micky's description of thick vinyl sounds a lot like
Yes, but it didn't have the strands that fiberglass has. It was
slightly hard to separate from the metal case around it, because it was
pretty stiff and had been next to the metal for years and it was hard to
find a place to grab it, and I think I had to pry it away, but when I
did, it bent like a thick rubber mat meant to stand on at a work
station. It was milky to clear in color. That is, iirc you could see a
millimeter or two into it. I should have saved some of it but for once,
I didn't. (After I got it in two pieces and brought it upstairs, I cut
it in a lot of pieces to throw away with the weekly trash pickup, sort
of like in a Hitchcock episode.)
>>> But I don't really know, and am willing to be corrected.
>> It is spray on glass. Frit is sprayed on the metal, heated, melted,
>> Think of it as like a glazed pottery.
Not in my case. Not glazed at all.
>Frit - Thanks for a new word.
Yes, a good one.
>I need to get around to putting in that new anode I bought a few years
>back. I will have to lay the tank down to do it.
Because the ceiling is not high enough, I guess.
BTW, I noted the complaints from 3, maybe 4 people about my replying to
more than one person at once. I know Usenet is not email but for lack
of a Usenet authority, I checked with the greatest email sage I know and
she, Katrina, said it was fine. That that was how it was supposed to
Maybe this will help. I'm not replying to specific people, so the
attribution line at the top doesn't reflect that I am. Rather, I'm
giving my opinions or facts and I put some of my lines after lines from
the preceding post (including lines from prior posts quoted in the
preceding post) so that if my meaning is not clear, readers can use the
quoted lines to tell what I'm talking about**, not to tell who I am
talking to. I'm talking TO everyone with every line.
**Like in this post, I don't explain that I'm talking about a water
heater, or that someone said it sounded like fiberglass. When I give
the distinction, that it doesn't have fibers, readers can look in the
line above to see that the suggestion was that it was fiberglass. For
the purpose of understanding my words, it doesn't matter who said that,
but if someone really wants to know he can find the attribution line, or
he can look in the list of preceding posts.
So I hope you will just read my words and not worry about who said
whatever I'm replying to. Except for a couple trolls, I regard
everyone here with the same respect and even when I disagree I don't
mean it to be personal.