Eternal Gas Tankless Water Heater Noise!?

Discussion in 'Tankless Water Heater Forum' started by philipk65, Jun 7, 2014.

  1. philipk65

    philipk65 New Member

    Messages:
    3
    Location:
    CA.
    Hi,

    I have a 2012 Eternal Propane tankless water heater GU 195 S.

    The last 3 days it make a horrible noise when the gas kicks on. It sounds like a out of tune French horn or a sick Moose.

    *** FYI - 3 days ago our propane tank was filled up from 20 gallons to 80 gallons. Would that have something to do with it? ***

    What can be the problem?

    Also, I read some pretty bad reviews on this model. How is the company about standing behind their product and warranties?

    Thanks!
  2. zl700

    zl700 DIY Senior Member

    Messages:
    237
    Location:
    Texas
    A 100 gallon tank is not large enough for a 200,000 BTU appliance. (I'm guessing you have that tank size, as 80% is max fill).
    These tanks are used for clothes dryers and cooking.

    The evaporative capabilities and the small regulators they put on these tanks can't supply the volume of LP gas the tankless requires. The problem you are hearing is called resonance and it's common on undersized LP systems.

    Shame on the installer or LP company whoever was there last, they should know this.
  3. dschag

    dschag New Member

    Messages:
    13
    Location:
    topanga, ca
    I too have an 195s model with 499 gallon propane tank. The Eternal has given me problems from day one--my plumber actually replaced the unit after about a month because of various maladies and the replacement has had many of the same problems. I think the sound you are hearing is when the unit is trying to ignite--does it sound kind of like an emerging belch? I was on the phone once with Eternal and the tech guy said he recognized the sound over the phone and it is not good. Bottom line, in my opinion is that the unit is starting to fail. Eventually, you may get E02 errors and the unit will not work. That's where I am at now.
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