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#16
07-15-2007, 10:58 PM
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I wonder if my house has some sort of venting system built in. It's approx 3yrs old. I have a switch on my main floor that says "ventilation control" and whenever it's on, the bathroom fans turn on 24/7. Is this something similar to a HRV? I don't see an HRV unit in the basement though...
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