What Should I Know Before Buying A Used Hot Water Heater?

It’s a 55 gallon electric. Very clean, a little corrosion/rust around outside of in and out pipes. Don’t know how to judge the age. Energy rating is over $400. I can buy it for $50.

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Posted in: Water Systems Q & A Comments(5) January 2010


5 Responses to “What Should I Know Before Buying A Used Hot Water Heater?”

  1. This Old House Says:
    January 18th, 2010 at 8:08 pm

    The main thing to check is the condition of the anode rod, sometimes called a sacrificial anode. This is a replaceable magnesium or aluminum rod that sticks into the tank and gradually corrodes in a process that prevents corrosion in other parts of the tank. Rods can last about 5 years or so, depending on your water quality. If the rod on this tank has completely corroded away, there may be corrosion damage to other parts of the tank. Replacing the anode rod is a DIY project:http://www.thisoldhouse.com/toh/skill-bu…

  2. Janet T Says:
    January 18th, 2010 at 8:09 pm

    Sounds like you can’t go wrong there. I would just keep and eye on the hydro bill for a few months to make sure it isn’t eating more hydro than it should be.

  3. shawnd51 Says:
    January 19th, 2010 at 2:54 am

    Don’t buy a used water heater. The life is only about 7 years.

  4. gizmoe Says:
    January 19th, 2010 at 3:39 am

    Unless yor really cant afford one and need one now i wouldt wast the time.
    You dont know what the condition of the tank is or the elements.
    They are only good for about 10 years.

  5. ~Uplanti Says:
    January 19th, 2010 at 8:49 am

    if the inside liner is leaking you just wasted your money…

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