Whole house ventilation fan

[stink4570]

My house has a ventilation fan that sucks the air out of the whole house through the attic and to the outside. Has anyone used one of these to control the humidity in their homes from water evaporation and how well does it work?

 

[blaxsun]

I have an air exchange in my house (similar), but I basically run a dehumidifier to keep humidity levels down.

 

[exnisstech]

I doubt it would work for humidity control unless your in a dry climate. As air is pulled out of the house it has to be replaced with air from outside so whatever the humidity is outside is is going to be the lowest you'll get inside. At least that's how I understand it to work. I'm in a high humidity area not to mention it's cold part of the year. Here attic fans are only used in the summer.

 

[Williamson’s Reef Verified Sponsor]

I have an air exchange in my house (similar), but I basically run a dehumidifier to keep humidity levels down.

This is what I have. I just installed the air exchanger the other day. I’m not seeing a PH boost though. Did you?

 

[blaxsun]

This is what I have. I just installed the air exchanger the other day. I’m not seeing a PH boost though. Did you?

No, but a friend that has his tank in his condo (no air exchange) returned from holidays and saw his pH drop -0.2 in 24 hours. I don't think having it boosts my pH necessarily, but it's definitely offsetting the human component to some extent.