1
vote
0answers
121 views

How can I unclog a passive bathroom air vent?

I live in a prewar apartment building. At the top of the shower, on the wall where the water comes in, is a passive vent. There is no powered fan that is installed and no nearby electrical wiring to ...
2
votes
0answers
231 views

How to avoid water build-up in bathroom's passive ventilation shaft?

Our apartment building is 23 years old, and the bathroom has passive ventilation: basically there's a hole in the wall just under the ceiling, where warm moist air slowly escapes. It usually has a ...
8
votes
2answers
4k views

What are my options for venting a bathroom exhaust fan?

I would like to install a fan in our bathroom which currently has none. However, I'm very confused regarding the best approach for this. Above the bathroom is an attic space. I have read that ...
2
votes
1answer
4k views

Is it better to vent a bathroom fan out the soffit, the side of the house, or the roof?

Working on a friend's house, we're installing a bathroom fan. He had planned to vent the fan out the closest soffit, which is only a few feet away. I'm trying to persuade him to vent it out the roof ...
8
votes
3answers
691 views

Should a bathroom fan vent to a separate duct system?

Is it acceptable to route a bathroom exhaust fan to the return of a central air system? I'm afraid this will cause mold to grow in the air return ducts. There is currently a fan in our bathroom and ...
4
votes
3answers
1k views

Can I vent a bathroom fan through the eaves?

I want to fit a fan in our bathroom. The easiest way to do this seems to be to drill down from the loft and put it in directly above the shower. I'm then considering running the vent (flex pipe) ...