Exhaust Fan For Bedroom
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Discussion Starter · #1 ·
Bedroom 144 sq ft, I'm looking for an exhaust type fan to run in the mornings after I change my son's diaper. He is disabled, so the room sometimes smells really bad and I need a way to draw the air out quickly.
I was looking at this one at Lowes
https://www.lowes.com/pd/Broan-1-5-Sone-140-CFM-White-Bathroom-Fan-ENERGY-STAR/3747685
but I was told it was too small. I like the idea of having a night-light in the unit, but maybe I should consider that as a separate idea altogether?
It seems like everything I look at is either too large or not large enough. Anyone have ideas?
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Hi Lily,
Your room has about 1,200 cubic feet and that fan is rated for 140 cfm so it would take about 10 minutes to exhaust all of the air. Actually 8 minutes but it doesn't all move while being replaced. You will need to leave a door open or provide another source of replacement air. IMO that fan should do fine and best if installed with a 6" duct. Reducing to 4" will slow down the air flow but should still be ok.
We recommend fans like this to remove moisture (and smell) from bathrooms and they can be installed with an adjustable delayed off switch. That way, when you leave the room that fan will continue for the selected time and shut off by itself.
I have an autistic grandson so understand exactly where you are at. The lord be with you.
Bud
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Discussion Starter · #3 ·
Thank you! My son has autism and he mentally retarded as well. He is 20 and will continue to live with us from here out. I can certainly do a 6 inch duct. The timer is a great idea, will think on that. Yes, I know it needs a place to draw air from, I usually just open a window in his room now anyway (no fan right now though). The Broan rep on the Lowe's site is who told me it would be too small. So that is why I was asking. I realize 'too small' may just mean it would need to run a few mins longer, but I am ok with that. I forgot to say that the walls are 9 ft tall in that room. Will that make a difference?
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One other thing to consider may be the sound level - usually measured in 'sones', the lower the better. You'll probably pay a few more bucks but it might be worth it.
I don't think your higher ceiling will make much of a difference. Nine foot ceilings are not that uncommon and it's all part of the room's air volume. The timer control is an excellent suggestion.
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As lenaitch said the 9' ceilings will not be a big difference, 1,300 cubic feet instead of 1,200. The Broan in your link is 1.5 sones which is very good (quiet). Some of the switches have controls right in front but some are internal, set it and close it up.
At 20 you have been at this for awhile. Jacob is 10 and non-verbal. It takes a family and a heart of gold to raise these kids, my hats off to you.
Ring our bell anytime you need help as there is a large group of great volunteers here knowledgeable in many fields.
Bud
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You may also wish to look for something better like the Panasonic line of bath fans.
I understand you like a night light. But if not they also have an inline fan. So in the bedroom you would just see a regular ceiling vent like they use for heat/AC.
Then short duct to the inline fan mounted anywhere in attic, then another duct to vent outside. With inline it is very hard to even hear it running.
For switch add a Leviton LTB30-1LZ timer as a wall switch
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Discussion Starter · #7 ·
RRH would that be vented out the roof then or out the gable end wall? I may even consider something that goes out the wall, we want a metal roof and I don't want to worry about leaks later on. should that be a concern or not?
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RRH would that be vented out the roof then or out the gable end wall? I may even consider something that goes out the wall, we want a metal roof and I don't want to worry about leaks later on. should that be a concern or not?
Can be vented anywhere. But I agree the less holes in any roof the better.
Gable vent would be great.
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Just don't vent it at the neighbors or near a window or to close to soffet vents.
I would have pro put it in the roof but is just me.
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Bedroom 144 sq ft, I'm looking for an exhaust type fan to run in the mornings after I change my son's diaper. He is disabled, so the room sometimes smells really bad and I need a way to draw the air out quickly.
I was looking at this one at Loweshttps://www.lowes.com/pd/Broan-1-5-Sone-140-CFM-White-Bathroom-Fan-ENERGY-STAR/3747685
but I was told it was too small. I like the idea of having a night-light in the unit, but maybe I should consider that as a separate idea altogether?
It seems like everything I look at is either too large or not large enough. Anyone have ideas?
While that fan is a bit small for that room size/volume. It may work okay if you turn it on before you start the change, and use a timer to turn it off after running for 30 minutes.
Using a larger fan and opening the window to get the needed make up air, could make the room excessively hot or cold depending on the season.
Might also want to check into using a portable room air cleaner that has activated carbon filter/filters to reduce odor in conjunction with the exhaust fan.
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Discussion Starter · #12 ·
We live out of town and don't have neighbors house close. So that is no issue. Most of the air cleaners I have seen don't clear air out quickly, instead run for longer periods. I cannot leave anything electrical plugged into the room with him unattended.
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Could you use a window fan and shut if off before leaving the room?
They move more air than most exhaust fans, no real installation.
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Discussion Starter · #14 ·
I may as well install something, the room is gutted right now anyways.
Source: https://www.diychatroom.com/threads/what-size-exhaust-fan-to-use-in-a-bedroom.528177/
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