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Blog Title: What is the smell when you turn on the air conditioner heater?
Why does the air smell when I turn on my heater? Is it carbon monoxide?
Category: Home Air Conditioner Units Post By: DARLENE REID (Au Sable, KS), 08/10/2013

No, it is definitely not carbon monoxide. I can see why you are worried though. When you turn on your heater after it hasn’t been used for a while, the dust on the heater gets heated up and that’s what creates the smell. It isnt something one should be worried about as long as the smell goes away few minutes after the heater has started running.

- THERESA COX (Glen Fork, MO), 08/20/2013
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