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Thread: Cement Lined Water heater?

  1. #1
    DIY Junior Member TMP>9a59's Avatar
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    Default Cement Lined Water heater?

    Just starting the research phase of a new water heater for the house. I see there is a company named Hubbell that makes a cement lined water heater instead of glass lined. Their Model E is a light commercial duty, so for a home it would be more than adequate (if sized correctly). I know it would be heavier, but the location is on a concrete slab with good access.

    Other than costing more, is there any real differences (advantages) to a so called "stone lined" water heater? Does it interact with softened water in a detrimental way?

    I have found a few conversations where these types of heaters have a life span of 20 plus years.

    Thanks

  2. #2
    DIYer, not in the trades LLigetfa's Avatar
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    What would be the heat source? Sure, the tank could last longer but it could fill up with lime scale and affect the heat transfer. I know that I would not want a gas water heater to last 20 plus years as the efficiency would be way off with no easy way to clean it.

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    General Engineering Contractor ballvalve's Avatar
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    I have only seen cement lined electric heaters, as they are spun coated, not possible with a central tube.

    I was cutting a 30 year old one up for a trough, when I learned of their existence - couldnt quite figure why it was so heavy. No torch can cut a cement lined tank. Scrapped it, and made a bunch because they dont look inside.

    I would go with it, but you need good access to move it.

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    Plumbing Contractor for 49 years johnjh2o1's Avatar
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    Years ago tanks that were used to store hot water that was produced from various sources were stone lined. Many were 80 and 120 gal. I can still see them sitting horizontally on pipe stands 2'-3' off the floor. I'm sure hj also remembers them. They also were covered with asbestos.

    John
    Last edited by johnjh2o1; 12-11-2011 at 12:07 PM.

  5. #5
    General Engineering Contractor ballvalve's Avatar
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    This one had a georgeous copper finned heat exchanger in a set of ports which I did manage to cut out. No Asbestos. Likely a solar tank.

  6. #6
    DIYer, not in the trades LLigetfa's Avatar
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    Quote Originally Posted by ballvalve View Post
    I have only seen cement lined electric heaters, as they are spun coated, not possible with a central tube..
    When I did a quick google search I was finding steam heated units but have since found the electric model E the OP mentioned.

    http://www.hubbellheaters.com/html/modele.htm

  7. #7
    General Engineering Contractor ballvalve's Avatar
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    I had another one that I welded a patch on over a leak in my poor youth, and the damn thing lasted another 15 years. "curbside pickup" built my first house.

    What I fancy is building a house with those huge bales of compressed cardboard boxes. Probably win every enviro award in the nation.

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