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Power vent heater

hunter29
hunter29 Member Posts: 122
in Domestic Hot Water

I have a power vent water heater which I think made a strange sound today for about two seconds.

I was thinking it could be the draft inducer's motor / fan assembly. I put my hand on the motor

while it was running and it seemed pretty hot.

So I'm wondering if that's normal ?

IMG_3651.jpeg

Comments

  • ChrisJ
    ChrisJ Member Posts: 16,360

    Id prefer to use numbers rather than "feels hot" because we have no way of knowing what that means.

    Do you have an IR thermometer?

    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

  • hunter29
    hunter29 Member Posts: 122
    edited December 2024

    Good point, no I don't but, I have to remove my hand after twenty seconds or it will start to burn.

    So maybe 135* ?

    I have a temperature strip sticky that came with my mixing valve, I'll put that on it and see.

  • hunter29
    hunter29 Member Posts: 122
    edited December 2024

    Fwiw


    IMG_3653.jpeg

  • hunter29
    hunter29 Member Posts: 122
    IMG_3654.jpeg

  • hunter29
    hunter29 Member Posts: 122
    edited January 1

    Short of letting it run another half hour it looks like it topped off at 125* surface temperature.

    And the cooling fan is blowing air.

  • hunter29
    hunter29 Member Posts: 122

    Just a bump, I would say this is normal, anyone disagree ?

  • HVACNUT
    HVACNUT Member Posts: 6,454

    Whats the room temperature?

    The motor is rated for 2.8 amps. Actual is…?

  • hot_rod
    hot_rod Member Posts: 23,816

    it look pretty dirty in the cooling slots, blast it out with some compressed air. Can hurt.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • hunter29
    hunter29 Member Posts: 122
    edited January 4

    Good ideas guy's, thanks..

    It wasn't as dirty as it looked but I cleaned it anyway.

    Running at that temperature 120/125* it was drawing 2.26 amps… at 64* room temp..

  • pecmsg
    pecmsg Member Posts: 5,512

    Drawing 2.26 and rated for 2.8 Not bad. ASSUMING the voltage is 115.

  • hunter29
    hunter29 Member Posts: 122

    it is…

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