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Thread: Rheem Marathon, no anode rod

  1. #1
    DIY Member Woodenshoe's Avatar
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    Default Rheem Marathon, no anode rod

    I am almost positive that my hot water heater is going south(12+yrs old) and it is the culprit of creating H2S on the hot water side that damage my copper coils in my A/C unit.

    I have extrmely hard water and no softener yet, working on it.

    I looked at the rheem marathon hot water heater that is made from a blow molded,polybuthene tank that is corrosion free and because it is plastic it als o eliminates the need of an anode rod.

    These units are pricey and I was wondering if anybody had any experience with these hot water heaters before I buy and install one

    Ron

  2. #2
    Plumber Cass's Avatar
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    All I know about them is the replacement elements are very expensive...unless you are planning on staying there another 10 years it may not be worth the added expense...

    Also you will need a softner or the unit will fill with sedement...

  3. #3
    DIY Member Woodenshoe's Avatar
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    Default softener

    Thanks for the quick reply Cas.
    I will probably get a softener from Gary and install that first before the new waterheater.
    I'm planning on staying here forever so it might be worth the expense.I will research a little more or maybe someone else has more experiences with them.
    Also my neighbour is a retired Rheem HVAC installer, maybe I can order through him for wholesale
    Although it probably won't give you warranty if you installed it yourself

    Ron

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    Moderator & Master Plumber hj's Avatar
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    Default anode

    How would H2S in the hot water affect your AC coils? The Marathon heater will not last a lifetime, they will just keep giving you new heaters every time it goes bad. The tank may not fail, but the connections into the tank usually go bad, and they are not repairable.

  5. #5
    DIY Member Woodenshoe's Avatar
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    Default sulphur gas

    Quote Originally Posted by hj View Post
    How would H2S in the hot water affect your AC coils? The Marathon heater will not last a lifetime, they will just keep giving you new heaters every time it goes bad. The tank may not fail, but the connections into the tank usually go bad, and they are not repairable.
    The old A/C unit was replaced and the installer informed me that the coils where probably eaten up by the sulphur(gasses) in the well water

  6. #6
    Plumber Cass's Avatar
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    How was well water getting to your A/C coils ????????????

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    Moderator & Master Plumber hj's Avatar
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    Default sulphur

    And what did that have to do with the water heater? Just washing the coils with hot water would not have damaged them.

  8. #8
    DIY Member Woodenshoe's Avatar
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    Default hot water

    I am not exactly sure but I assume that he ment when taking showers or baths the gasses would go through the ac vent back into the unit when running

    Doe that make any sense or was he just talking out of his ass?
    He installer is a neighbour down the street and he has been in the business for a long time in the area.

  9. #9
    Retired Defense Industry Engineer jadnashua's Avatar
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    In theory, it's not a good idea to have things that output clorine or probably multiple other gasses present in either air-handling or burning devices. In the presence of moisture and heat, they can create acids. Just like you really don't want your dryer vent exhausting near your heater air inlet. Probably not a big deal, but under just the right circumstances, could lead to early failure.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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    DIY Member Woodenshoe's Avatar
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    Default inlet

    My AC/inlet is right there where the washer/dryer/HWH and a bathroom is

  11. #11
    Master Plumber master plumber mark's Avatar
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    Talking Rheem marathon heaters

    the are not worth the money..

    I cant sell them for cost to my customers...
    ..

    and they will still fill up with sediment and still need service


    just get a normal one with heavy duty elements
    for under half the price,
    and it will most likely last 12 years or more


    Also,
    I think your furnace man is blowing smoke up your ass

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