Home>Discussions>INSULATION & HVAC>AC is spreading my basement smell through the house
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Erin
AC is spreading my basement smell through the house

My basement is pretty musty. It's finished and carpeted and our cats' litter is down there, making for kind of a perfect storm of stink.  The problem (other than the stink down there) is that any time the AC comes on it spread the smell through the whole house. I can immediately smell it coming up from the vents. I don't think it's an issue with the vents themselves since (1) we had all our ducts cleaned 2 years ago when we moved in and (2) any smell that's down there comes up, not just the musty smell. My husband once bought scented litter by accident and our entire house smelled like it once the AC came on. Our system is down there and one of the intake vents (I think that's what it is) is located at the floor level, right in the smelliest part of the area. Is there a way to stop the intake of air from down there? 

HandyAndyInMtAiry
Re: AC is spreading my basement smell through the house

Erin,

Check the air intakes. A HVAC system sucks air in and blows air out, a simple dispursement system.

I suggest getting rid of any and all animals that live indoors, or live with their smells. There is nothing else you can do

Andrew

Handy Andy In Mt Airy NC

FRANCO
Re: AC is spreading my basement smell through the house

I suggest hire a professional to inspect your house.

https://www.heatingair.org/

 

ordjen
Re: AC is spreading my basement smell through the house

Are there vents down there? If so, close them! Is the furnace down there and a return vent? Seal the return vent. ( the main return would normally be upstairs in the living area). Of course, you will now not have air conditioning down there.

You might consider attacking the source of the smell.Get a dehumidfier to lower the humidity ( the A/C is doing that too). Is it a dry basement with dry floors? The carpet is a primary source of smell if the floor is damp. If it youf carpet, get rid of it. Cat litter boxes that are maintained well don't smell! Clean it more often.

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