What is that smell coming from my heater?

Discussion in 'HVAC' started by Admin, Nov 12, 2013.

  1. Nov 12, 2013 #1

    Admin

    Admin

    Admin

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    I just had to turn on the heater and the entire house has a sour smell. It happens every year to everyone I know, but I've always wondered, what is that smell?
     
  2. Nov 12, 2013 #2

    oldognewtrick

    oldognewtrick

    oldognewtrick

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    Dust, bugs, lint, hair, dead skin, stuff thats accumulated on the heat exchanger.
     
    nealtw and kok328 like this.

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