Questions tagged [exhaust-fan]

For questions about exhaust fans -- i.e. fans used to remove air from specific rooms in a building and exhaust it to the outside in order to control humidity and/or combustion products. Exhaust fans, unlike [ceiling-fan]s, are installed into the building's structure, either in a fitting within the room's ceiling, or remotely, drawing air from the room via a duct and grille.

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Where should I locate an exhaust fan in a 110 square foot bathroom with an included 15 square foot toilet room

I have a 110 square foot bathroom with a 12 foot ceiling. There is an included toilet room 15 feet square with an 8 foot ceiling with what is probably a 50cfm exhaust fan in the ceiling. I want to ...
P Schmurr's user avatar
2 votes
1 answer
38 views

How to tell if a switch is on a GFCI branch circuit

I am looking to install this light/exhaust fan combo over a shower and see that it's approved for such use "with a GFCI branch circuit." It is on the same circuit as a GFCI receptacle, so ...
aknodt's user avatar
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Separate exhaust ventilation fans vs central exhaust ventilation

Context: we're in the Netherlands. Here, since about 30 years, all houses are built with what they call "mechanical ventilation". Actually, what they really mean is central ventilation, with ...
texnic's user avatar
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1 answer
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How do I vent 3 bathroom exhausts out the roof

I have 3 bathroom vents that all just vent into the attic. There is flexible pipe going toward the edge of the attic, as if it were going out a soffit vent, but there are no soffits here. So they are ...
chen's user avatar
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Installing the Homewerks Bath fan Bluetooth speaker and LED Light

The connection to the exhaust fan housing unit contains 2 green ground connections a white and a black fan connection as well as a black and a white light kit connection. My existing wiring contains ...
Denise Porter's user avatar
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1 answer
55 views

Help with wiring up new bathroom exhaust fan

I removed an old Nutone bathroom fan from the ceiling. I'm installing a new Nutone fan. I can get the fan to blow when I connect the fan black and black hot wire, and fan white and white neutral wire ...
ADDA's user avatar
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2 votes
2 answers
121 views

How to make ceiling vent go around ceiling beam?

I discovered my house kitchen vent doesn't actually vent anywhere. Since I cook a lot of Chinese food, it means the air is always oily. I bought a brand new high-powered ceiling fan, pulled out the ...
Village's user avatar
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Bathroom ceiling fan help

Ok. So here's the deal. Against my better instincts I am installing a bathroom ceiling fan. I cut the hole in the ceiling to be bigger because the old fan was smaller. However, I cut it in the wrong ...
jwylie's user avatar
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Make-up air in basement

I got my rec room and bathroom final inspection for my basement and the inspector said I need make-up air (and a couple other things). The previous inspector for rough-in apparently didn't do his job ...
Joe Phillips's user avatar
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Two Switch to Control Single Vent Fan

Attic _________________ [ ] ========[ Inline Vent Fan ]========> || [_________________] ...
YarGnawh's user avatar
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No holes for ducted hood in kitchen above stove

I moved into a new apartment. There are no holes made in the cabinets or wall for a duct for a hood above the stove area. I have a large gas stove which I use almost daily. However, there is an ...
Zakariya's user avatar
8 votes
3 answers
4k views

Is it a bad idea to install a bathroom vent in a drop ceiling without external exhaust?

I'm under contract for a condo in a large building with drop ceilings in the bathroom and no vent fan. I am told that some units have external ventilation capabilities and some don't but I don't know ...
aknodt's user avatar
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11 votes
4 answers
4k views

Brand new bathroom fan appears to be spinning the wrong way

I'm finishing a new basement bathroom and just tried the exhaust fan, and it appears to be blowing the wrong way. I can feel air blowing downwards, and the horizontal backdraft fins on the outside ...
Egor's user avatar
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Is it ok that my wall air vent does not seal to duct?

I went to my attic today and saw that all of the bathroom exhaust fan duct pipes are put loosely to the hole on the inside of the vent. Does this look right? I’m afraid this would blow air to the ...
VuDuong's user avatar
1 vote
2 answers
176 views

How to properly clean a bathroom fan?

I recently pulled off the grille and cleaned a filthy bathroom fan. I noticed the fan's pull is not nearly good as it once was. I didn't really have an approach - I didn't remove the fan, for instance,...
AdamO's user avatar
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How to solve mismatch vent location for downdraft cooktop?

I am replacing a downdraft cooktop with another. A snag will be matching the new cooktop vent with the existing vent in the wall. The current vent is on an interior wall and I expect 1-2 inches (or ...
Maesumi's user avatar
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Need Help with Bathroom Exhaust Fan/Vent

I have a bathroom exhaust fan that is not working. It seems to be a light/fan combo unit (see below pictures). The fan use to turn on when the light was turned on, but it's no longer functioning. The ...
SOJ3's user avatar
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What is the cause of this odd behavior of a shower exhaust fan?

Recently an old, heavily-used shower exhaust fan started exhibiting a strange behavior. When the switch was turned off, the RPMs on the fan would die away as normal...but then there would be a pause ...
Organic Marble's user avatar
1 vote
2 answers
93 views

Choosing between a ductless and vented range hood for an electric stove [closed]

I want to have an electrician replace our current stove-top fan for an old, electric stove. However, we have the option of getting either ductless, or one that vents outside. Installation of one that ...
Cdn_Dev's user avatar
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How to check if bathroom fan is compatible with current-leaking timer?

I installed a timer switch to control my bathroom fan, the Lutron MA-T530G. This timer connects to the hot wire only and operates in series with the fan. Due to this, it leaks a small current even ...
Bege1986's user avatar
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New exhaust fan wiring issue

I have searched this forum and read some answers on similar issues to what I am having but I still need clarity. I had an old exhaust fan that went. In the box for the switch I have two romex wires. ...
Matt Mclean's user avatar
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Can I split an exhaust fan and a light that are on a three way switch?

I’m trying to work out if it’s possible (and up to code) to split an existing three way switch that controls my bathroom lights and exhaust fan. The ideal outcome would be: Caseta dimmer and ...
emoulson's user avatar
1 vote
1 answer
120 views

Debris dropped on exhaust fan from top by roofer

My roofer's accidentally dropped debris onto the fan part of my bathroom exhaust fan. What is the simplest way to remove the debris without taking apart the whole fan?
user179428's user avatar
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Where can i get power for my exhaust fan in my bathroom?

I’m trying to install an exhaust fan in my bathroom just a fan no light. Can i get the power from the light switch or from the GFI outlet ??
Brian Brown's user avatar
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106 views

Replacing a bathroom fan switch

I am trying to replace my bathroom fan switch with one having a humidity sensor (Leviton DHS05: https://www.leviton.com/en/products/dhs05-1lw). The existing switch (see photos) is connected to a ...
haoxp's user avatar
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1 vote
2 answers
162 views

Which trade deals with extractor fan ducting?

We're getting a lot of damp around the extractor fan, and I'd like the flexible ducting (in the loft) to be replaced with rigid ducting - does anyone know which trade deals with extractor fan ducting? ...
dvniel's user avatar
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4 votes
2 answers
2k views

Can the exhaust duct of an ERV vent *into* the garage?

I am looking to install an ERV in my house and am currently trying to determine good locations for the intake and exhaust vents. While I have identified other candidate locations for the exhaust vent, ...
Andy Hall's user avatar
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0 answers
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1948 Kitchen ceiling exhaust fan?

Our house was built in 1948. There is a Fasco ceiling exhaust fan that we want to replace. However, looking and feeling into the housing of the fan, it seems as if it is totally enclosed. Where is ...
Kate_DU's user avatar
0 votes
2 answers
109 views

Bathroom exhaust fan to blow air directly behind it (with no turns)?

I need to add an exhaust fan to a bathroom. The layout is such that the fan will need to be in a wall, with the duct directly behind it. Ideally, the fan will take air into its grille, and send that ...
Ben Wheeler's user avatar
1 vote
2 answers
600 views

Not sure what to do about two bathroom fans tied into one roof vent

Two of my bathrooms are on the main floor, adjacent to one another (they share a wall). One is the ensuite, the other is the main bath. We recently noticed that scents were traveling from one bathroom ...
SpycheDad's user avatar
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1 answer
1k views

Why does my bathroom exhaust fan blow downward?

Replaced exhaust fan and now air blows down into bathroom vs. out the exhaust vent.
Janine's user avatar
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Is it worth completely changing “acceptable” bath vent ducting to avoid reducing from 4” fan to 3” ducting? [closed]

I’m upgrading two adjacent small bathrooms with new exhaust fans. The existing ducts are 3” plastic/flexible. The builder has both 3” ducts terminating, side by side, out of a 5or6” roof vent. The new ...
JAndrew's user avatar
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0 answers
33 views

Exhaust fan light removal

I'm having trouble removing the glass light fixture on my bathroom Exhaust fan. I've read a few other questions like this, but it does not pull down and does not have actual screws. I've attempted ...
Jameson Price's user avatar
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0 answers
37 views

How to Wire an Exhaust Fan/Light?

The exhaust fan/light I have has black, white, green, and blue wires. The house wires are black, white, ground, and red.
Maggie's user avatar
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2 votes
2 answers
218 views

Can I use a basement oil tank vent pipe to vent a 3d printer enclosure?

Currently, I have a 3D printer in my office where I work with a removeable vent that I fit to the window. I'm looking to move it into my basement. I'm getting an oil tank removed, and with it, I think ...
StevenPG's user avatar
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0 answers
73 views

Duct connector for bathroom fan doesn't fit in the attic space. What are my options?

I am in the process of removing an old bathroom fan and replacing it with a newer Broan-Nutone fan. The new fan came with a 4" duct connector, which will require a connector to attach to my 3&...
ZbadhabitZ's user avatar
6 votes
2 answers
1k views

How do I screw through a metal bathroom fan box to affix it to the joist?

I am in the process of replacing an old bathroom fan in a guest bathroom with a new Nutone ARN110LKVV. After running some new electrical and getting the old fan out, I finally got to the step where I ...
ZbadhabitZ's user avatar
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1 answer
53 views

The gills broke off of my kitchen fan, is it still safe to operate until I can replace it?

I live in a dinky apartment and one night, while being completely turned off, The plastic grille over my kitchen fan just fell and shattered on the ground. It seems like the bolt holding it in place ...
Elizabeth's user avatar
1 vote
1 answer
104 views

In What Direction Should This Basement Fan Blow?

Shown is a basement of about 5,000 square feet with concrete floor and walls in a building originally built in 1935, acquired a year ago but with a 22" basement fan that's always been dead. ...
joe's user avatar
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2 votes
1 answer
266 views

Bathroom fan replacement, non-standard plug [closed]

A couple of nights ago, I noticed that my bathroom exhaust had stopped working. It still makes a humming sound but it doesn't spin, so I assumed it's probably the motor. I removed the motor/fan and ...
user123965's user avatar
0 votes
0 answers
29 views

Replacing bathroom light/exhaust fan

Replacing bathroom light exhaust fan. The old one has a white black red and ground wires. The new one just has green white and black. The fan and light are operated by a single switch. How do I ...
MARISSA's user avatar
1 vote
2 answers
138 views

Who to call to cut an opening for bathroom vent?

We just bought a house and the upstairs bathroom fan is venting into the soffits. The inspector said we would need someone to come in, cut an opening in the soffit, pull the vent through, and install ...
loyalgnat's user avatar
1 vote
1 answer
74 views

How can I decide between passive and active attic venting?

How do you decide which one to install? This is for a 2200 square feet, one-story, 40-year old home in the hot and humid Southeast Texas. During our last roof renovation, many years ago, the ...
Maesumi's user avatar
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0 answers
106 views

Bathroom Fan Exhaust Vent Replacement

I am having a bit of a tough time finding an Exhaust Vent that will replace the one that we currently have which has some broken louvered pieces. The dimensions of the plate are 5.5" x 5.5". ...
MidwestMumboJumbo's user avatar
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0 answers
43 views

Attic Fan Exhaust Options

I am looking to install an attic fan in my house (note: not a whole house fan). It was built in 2016 and is two story modular stucco, so no gable available for an exhaust window. I am reluctant to ...
Paul's user avatar
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0 votes
1 answer
33 views

HVAC - bathroom vent in attic space

Looks like my crappy builder did not do a very good job with the vent in my attic space as it already detached from the exterior wall. Any advice as to what products I can buy and affix back onto the ...
Cameron's user avatar
0 votes
1 answer
1k views

two separate bath fan on same 4" vent duct? [duplicate]

Can I install two separate 50cfm bath exhaust fans on one 4" vent duct? One is a tight half bath 7'x3' feet closed space. The other open standing shower 5' x 3'. both are in the same room 18'x14'...
Kishore Patel's user avatar
0 votes
2 answers
266 views

Possible to install a mini-split condenser inside-ish?

Trying to install a multi-zone mini-split heat pump system in a small condo that does not have any accessible outdoor space* for condenser unit, however in the region jalousie windows are common and ...
Jared Zimmerman's user avatar
0 votes
0 answers
32 views

Garage airflow ideas

I know this has been asked a multitude of times before, but I feel like I have a more unique scenario that wasn't directly addressed. I have a 2 story home in SoCal. Garage temps aren't unbearable, ...
Matt's user avatar
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8 votes
1 answer
2k views

How can I ventilate my bomb shelter?

One of the 'quirks' of local public housing is that it comes with an 'ensuite' bomb shelter - basically a room of reinforced concrete with a pair of ventilation holes. I should be able to get plug in/...
Journeyman Geek's user avatar

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