Heating, Air Conditioning, Fridge, HVAC/Geothermal


Hi, I have a 10 year old geothermal heating unit. I have noticed in the one upstairs room near the ceiling duct some whitish pieces of debris. I wipe it a few days it is back. I have to assume it is from my heat. What is this? Should I be concerned with the other ceiling ducts that are also probably emitting this. This one room's duct is near a shelf so that may be why I see them. What can I do to stop or lessen it. Thanks so much.

There are many things in the air that leave white flakes.  Most of what dust is it dead skin from us.  It appears as a white flake.  I do not know what you have coming out of the ducts, if it is actually coming from the ducts.  Depending on what the flakes are will depend on how to stop it, if at all.


Heating, Air Conditioning, Fridge, HVAC

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Craig HVAC Expert


I have been in the HVAC field for the past 18 years. I can help with most HVAC questions. I work on commerical buildings for the most part, and have yet to find anything I could not troubleshoot and repair, when repairable. I work on small 1 ton units to a 2500 ton chiller. Troubleshoot air flow, elect, and control problems. I attend regular classes to keep up with the latest and greatest.


I work on commerical sites, hospitals, gov't buildings. I can troubleshoot just about anything in the HVAC business.

5 years trade school, VFD training classes, Liebert factory training, some York and Trane factory training.

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