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The function of a bathroom fan is to exhaust humidity to prevent mold. As a fan pulls humidity out it also pulls good air out, so it should be located away from the air vent. I don't believe they are safe to put directly in a wet area, like over the shower.
"Bad" air as well. Code prohibits a bathroom from having an exhaust air vent into the HVAC system, and especially if it has a supply vent (our house in IL had one, our house in TX does not), then it needs to exhaust at least as much air out again.
As previous people have said the properly sized fan is all that matters. If your fan is undersized it doesn't matter where you put it. Noise level is only an added benefit to the situation.
I believe the standard for figuring out your CFM requirements is 1 cfm for every square foot of bathroom (assuming standard 8' ceiling heights).
I do have a house that has a very noisy fan right inside the shower, sure it's loud and ugly but it is 'very' hard to steam the mirrors up in that room. And no it never gets wet, even despite having little ones splash around in there. If you have the right CFM; placement is whatever gives you piece of mind.
That's a big electrical waste. Much better to set up your cell phone with a white noise app...draws much less electricity.
Maybe he (like us) also likes a little air movement at night. There are bigger things to worry about than someone else running a little electric fan all night.
Maybe he (like us) also likes a little air movement at night. There are bigger things to worry about than someone else running a little electric fan all night.
You feel air movement from your bed to your bathroom? You have one heck of bathroom fan, I'd have to say.
That's a big electrical waste. Much better to set up your cell phone with a white noise app...draws much less electricity.
Big electrical waste? I've got a ceiling fan that uses 2.22 watts to move 1,340 CFM and a whole house fan that uses 100 watts to move 1,527 CFM of air. Consumer fans (especially bathroom fans) don't use much electricity. Compare that to 5,000 watts that a 3-ton central air conditioner condenser uses.
I installed a Panasonic Whisper Quiet series fan in our master bathroom. It moves 150CFM, vs the basic, noisy 50CFM Broan it replaced. I did have to run new exhaust ducting, though, which wasn't terribly easy. I installed it adjacent to the old fan, close to the center of the room. I would have cut out a larger hole around the existing fan, but there wasn't enough room between the trusses.
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