How To Vent Bathroom Fan

Cavalier

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I live in a Florida condo where the bathroom has a washer/dryer in it, but the bath fan is not vented to the outside. It gets incredibly humid in the bathroom even with a small humidifier. The bathroom has no exterior walls and since this is a condo, I have no way to vent the fan to the outside. I am on a raised concrete slab with a crawl space. I might be able to have a hole made in the slab to vent underneath my unit, but that does not seem like a great idea. Anyone have any other ideas?
 
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I see two possible solutions to this, but neither is ideal. Option 1 - ask the HOA if I can drill a hole in the slab and vent the bath fan into the crawl space. The crawl space had a dirt floor and the walls are all concrete. The crawl space is open on one side so the ventilation is not bad. That said, it is Florida and the humidity outside is outrageous year round. Option 2 - connect the bath fan vent to the dryer vent. This is against code and I would need to add a flap so the dryer moisture does not come back into the bathroom. Thoughts?
 
Problem with tying into drier vent. If drier is on bathroom fan won't over come drier and if the house is in a slight negative might come back into house. Thoughs dampers are not tight. It is a very good possibility that electric i run in slab and possibly water . Post tension slab is a slab they run cables thru slab for strength.
If that is the case and would hit or cut the cable that would be expensive. Just concreate and rebar a water cooled holecsaw would give you a perfect hole. Can rent core drill, water tank and core diamond bit.
 
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Problem with tying into drier vent. If drier is on bathroom fan won't over come drier and if the house is in a slight negative might come back into house. Thoughs dampers are not tight. It is a very good possibility that electric i run in slab and water. Post tension slab is a slab they run cables thru slab for strength.
If that is the case and would hit or cut the cable that would be expensive. Just concreate and rebar a water cooled holecsaw would give you a perfect hole. Can rent core drill, water tank and core diamond bit.
 
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