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Below 265 SQ/FT Bathroom Ceiling Fan's ?

All workspaces below 265 squarefeet.
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427HISS

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We have a small bathroom 10'x 6' and the ceiling fan went out several years ago. There has been moisture around the fan and above the shower, so I'm replacing a lot of the drywall with the blue moisture drywall. I'm cutting out the whole ceiling. 25 years ago I put in a new fan, that had never been installed since new, in 1978. I used dryer hose to connect to the fan exhaust and ran it to the attic's gable end vent, thinking that the fan was strong enough to **** out the moisture ???

What brand, size and CFM should I be looking into ?
Is a vent necessary ?

Any ideas will be appreciated.
 
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Wiz02

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I bought this during Prime days for a small powder room, but price is about the same now. My primary reason for choosing this fan was the fact that it had a 3 inch vent adapter. Only negative is that it was way larger than my 30 year old original fan, and while it is much higher quality than the old fan, it's not discernably quieter.

Nutone LPN80 LoProfile Energy Star Bathroom Fan 80 CFM, 1.0 Sone https://www.amazon.com/dp/B008OHPURY/?tag=atomicindus08-20
 
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Wiz02

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The Cobbler said:
that's because of the restricted flow with the 3" vent. many of the low sone fans use 6" venting
Click to expand...
Good to know, and make complete sense as the fan was really quiet before I connected the vent. Unfortunately the vent disappears into the ceiling and goes to parts unknown so I can't change it out.
 
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mike93lx

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I have had great luck with delta breeze fans. Very, very quiet.

I've used 4" ridgid where possible, but the one in my master bath has 3" flex and the space where the duct runs is completely inaccessible, so it's running with a reducer. Works well enough.
 
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mike93lx

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Sones are a measure of sound level. I only buy fans that are around 0.5 or lower. Quiet enough that they sometimes have an LED to let you know they are running.

I also always use pushbutton timers so they can run for an hr and shut off automatically.
 
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427HISS

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Wiz02 said:
I bought this during Prime days for a small powder room, but price is about the same now. My primary reason for choosing this fan was the fact that it had a 3 inch vent adapter. Only negative is that it was way larger than my 30 year old original fan, and while it is much higher quality than the old fan, it's not discernably quieter.

Nutone LPN80 LoProfile Energy Star Bathroom Fan 80 CFM, 1.0 Sone https://www.amazon.com/dp/B008OHPURY/?tag=atomicindus08-20
Click to expand...
Here's only one review on Amazon....''My issue with fan is the OVAL exhaust nozzle 'cone thingy'. Who thought of this?! You can't put a round vent duct hose on an OVAL exhaust without some serious wrangling''.

Did you have the same issue. Other than that, it looks nice.
 
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427HISS

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mike93lx said:
Sones are a measure of sound level. I only buy fans that are around 0.5 or lower. Quiet enough that they sometimes have an LED to let you know they are running.

I also always use pushbutton timers so they can run for an hr and shut off automatically.
Click to expand...
Oh, I thought is was a misspell. lol
Do you hard wire in the pushbutton timer into the existing wire for the fan switch ?
We have a double faceplate, one the light, one for the fan.
 
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csp

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427HISS said:
Who thought of this?! You can't put a round vent duct hose on an OVAL exhaust without some serious wrangling.
Click to expand...
You put a short length of round sheetmetal duct on to the oval outlet without any serious wrangling and attach your hose to the end of that metal duct. A piece under a foot long will do the trick.
 
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427HISS

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Also, how big of cfm ?

Where do you personally run the exhaust hose to ?

Is there a mounting part to attach to a soffit or gable vent etc ?

We do have a nice dehumidifier that we run 365 days, as we are saltwater reef/fish hobbyists, but due to a health issue I take two to three showers per day for hot water therapy, so we need to remove humidity from the bathroom.
 
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427HISS

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csp said:
You put a short length of round sheetmetal duct on to the oval outlet without any serious wrangling and attach your hose to the end of that metal duct. A piece under a foot lung will do the trick.
Click to expand...
Of course, did not think about that, simple fix. A little duck tape. (my wife thought that's how it's spelled. lol )
 
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Wiz02

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kaymccampbell said:
Don't screw around with nutone ****. Buy a Panasonic. You'll **** yourself over the price, but they run forever, actually pull their rating, and they're quiet.
Click to expand...

I have no experience with Panasonic, but all the Nutone products that I have, work fine and are long lasting. Only reason that I am replacing the old fan is that the plastic grille has yellowed and I wanted something that was quieter.

@427HISS, I didn't need a transition section as my 3" vent is wire reinforcemented plastic. I just squeezed the vent into an oval shape and slid it over the adapter. Some metal tape sealed it right up.
 
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mike93lx

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427HISS said:
Also, how big of cfm ?

Where do you personally run the exhaust hose to ?

Is there a mounting part to attach to a soffit or gable vent etc ?

We do have a nice dehumidifier that we run 365 days, as we are saltwater reef/fish hobbyists, but due to a health issue I take two to three showers per day for hot water therapy, so we need to remove humidity from the bathroom.
Click to expand...
1 cfm per sq ft is the general rule of thumb, AFAIK. I tend to just grab units around 100cfm and they work great.

My venting has all been out the soffit
 
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mike93lx

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427HISS said:
This one sounds good, but it has 2.5 zones. So very noisy ?

Click to expand...
2.5 sone is likely quieter Than what you are used to, but way louder than I would use

Your friend has shared a link to a Home Depot product they think you would be interested in seeing:


www.homedepot.com

Delta Breez Signature Series 110 CFM Ceiling Bathroom Exhaust Fan, ENERGY STAR SIG110 - The Home Depot

Keep the air clear in your bathroom with this Signature Series 110 CFM Ceiling Bathroom Exhaust Fan. It operates quietly while removing humidity and odors. For energy efficiency, it offers a DC brushless
www.homedepot.com
 
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427HISS

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Wiz02 said:
I have no experience with Panasonic, but all the Nutone products that I have, work fine and are long lasting. Only reason that I am replacing the old fan is that the plastic grille has yellowed and I wanted something that was quieter.

@427HISS, I didn't need a transition section as my 3" vent is wire reinforcemented plastic. I just squeezed the vent into an oval shape and slid it over the adapter. Some metal tape sealed it right up.
Click to expand...
Thanks.
 
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mike93lx

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427HISS

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What does this mean ?

"Ceiling mount ventilating fan rated for Continuous Running''
 
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Shiftless

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At a friend’s place, I once installed a horizontal vent model Panasonic through a side wall.
Most bath fans are ceiling mount only.
 
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engineer2

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Chicago burbs
With a shower, you want 100-120 cfm.
Also you need a way for that much air to get back into the room. If the bathroom has a heat register and a gap under the door, you should be OK. If the mirror still fogs up, you need more make-up air.
Panasonic is the best and almost silent.
A timer or a model with a humidity sensor is a good idea but not required.
Galvanized ductwork flows better than flex line.
Vent it outside. Around here it's against code to vent it into the attic for good reason.
Around here the plastic outdoor vent hoods turn black from mold and the plastic rots from UV exposure. Get a metal one.
 
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csp

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Every install is different, no "kit" would be able to fit all possible install without the risk of way too many unused pieces.

It's not that hard to determine the parts needed for your install.
 
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tool_scrounge

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Southern California
kaymccampbell said:
Don't screw around with nutone ****. Buy a Panasonic. You'll **** yourself over the price, but they run forever, actually pull their rating, and they're quiet.
Click to expand...
I echo this. They work forever and are very quiet. The only complaint I heard was from the contractor regarding the size. They were larger that what he was used to. But it did fit.
 
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Sumboodie

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I was envisioning a ceiling fan and not a fart sucker fan.

Can't say I've ever seen one in a bathroom.
 
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M-technik-3

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rlitman

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Shiftless said:
Like Kay, I’m a big fan of the Panasonics. One of mine runs almost every day for an hour for the last 20 years.
Click to expand...
I installed a Panasonic fan into one of my bathrooms in 2006, and just replaced it not because it needed replacing, but because I finally renovated the bathroom. To be fair, the old one had fluorescent bulbs that kind of sucked, but the fan was still great. VERY quiet.

The replacement has LED lights now. Still Panasonic. I wouldn't have it any other way.
The new model was super easy to install, and supports both 3" and 4" ducts. I'm using 4", and supposedly the 3" raises the noise a little. It's also 3-speed. I used it on high during construction to remove dust, but find that medium keeps the shower clear just fine.

I'm using this switch now for the fan:
 
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