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Old 02-26-2012, 11:31 PM   #1
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Overly dusty 5 yr. old house


What can we do to cut down on the dust? House is 5 years old we chane the filters once a month and they are filthy? Hvac system is in the attic and ducts and returns are at the ceiling, on sunny days we can see the dust floating in the air. Windows are never opened, no construction in the neighborhood and the house is tight with door seals etc. Was told to put cheese cloth in the vent to block dust but will this block heat/ac getting in?

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Old 02-26-2012, 11:35 PM   #2
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Overly dusty 5 yr. old house


Carpeted floors?
Running a humidifyer, getting rid of carpets. Will help keep the dust down.
They sell simple to install filter pads for you registers.

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Old 02-27-2012, 12:11 AM   #3
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Overly dusty 5 yr. old house


My clients with the dustiest houses are usually the ones that are well sealed.
Humidity counts are often below 28% with drapes, upolstery, carpet, insulation, fabric etc breaking down.
I would get your humidity levels checked to see if you need a humidifyer connected to your heating system.
There is no way to know if cheesecloth will restrict too much of the airflow except by doing a temp rise check on your furnace. (it's easy to do). If the cheese cloth doesn't cause too much of a restriction on your system then spraying the cheesecloth with "Pam"will make it more effective.

What kind of filters are you now using and have you got your fan on 24/7?
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Old 02-27-2012, 04:30 AM   #4
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Overly dusty 5 yr. old house


If duct work is in attic. Then it probably leaks, and the registers are not sealed to the sealing.
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Old 02-28-2012, 09:22 PM   #5
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Overly dusty 5 yr. old house


What kind of filters are you using? If they are the inexpensive 1" fiberglass see-through filters then try a 4" Honeywell pleated filter that has the 1" lip to fit in your standard return grill.
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Old 02-28-2012, 11:33 PM   #6
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Overly dusty 5 yr. old house


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If duct work is in attic. Then it probably leaks, and the registers are not sealed to the sealing.
If the return air ducts are in the attic and not sealed at the joints, would the system be pulling dusty air through from the attic?
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Old 02-29-2012, 04:07 AM   #7
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Overly dusty 5 yr. old house


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If the return air ducts are in the attic and not sealed at the joints, would the system be pulling dusty air through from the attic?
Yes it can.
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Old 02-29-2012, 10:09 AM   #8
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Overly dusty 5 yr. old house


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Originally Posted by beenthere View Post
If duct work is in attic. Then it probably leaks, and the registers are not sealed to the sealing.
BINGO

Run the a/c or heater and crack a door or window. Does the air blow in or out? I have opened customers door and almost had my hat blow off.

Guessing return duct leak with all the dust - air blowing out (door trying to close). door trick - might help you out

if not, like beenthere said - around the registers dust coming in
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Old 02-29-2012, 10:37 AM   #9
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Overly dusty 5 yr. old house


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Carpeted floors?
Running a humidifyer, getting rid of carpets. Will help keep the dust down.
They sell simple to install filter pads for you registers.
Where? please give any info you have on them.

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