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.

Filter by
Sorted by
Tagged with
0
votes
1answer
70 views

Where can I find a replacement bathroom fan with this uncommon electrical plug? [closed]

I’m replacing my bathroom exhaust fan. I planned to do this myself and watched a few how-tos. It looked easy. You basically just plug the new one in. The thing is that our bathroom fan seems to have a ...
1
vote
2answers
128 views

Is a bathroom required by code to have a window or exhaust fan?

The Fort Lauderdale, Florida unit is on the top floor and there is a duct for the unit's central air in the bathroom, but it doesn't have a window or exhaust fan. Is this not to code? What are my ...
0
votes
1answer
33 views

How to access OTR microwave exhaust vent/ducting

I currently have an OTR microwave that is externally vented The exhaust vent for the microwave is concealed by cabinets above the microwave, and inside the cabinets the ducting itself is concealed by ...
1
vote
2answers
68 views

four way switch to three way for vent fan

Currently there is a ventilation switch on the wall, which has 14/2 leading to a relay which will turn on my furnace and newly installed HRV. It also turns on the bathroom fan in the nearby bathroom. ...
2
votes
0answers
71 views

Can I safely drill a four inch hole in a brick load bearing wall?

I need to drill a four inch hole in a brick load bearing external wall for a kitchen fan. Is there much risk of affecting the structural integrity of the building? It is a two storey building and the ...
0
votes
0answers
23 views

Ventilating a flat roof

My ensuite bathroom has a major humidity problem. I took the fan out (it's one of those combo heat lamp + light + fan units) expecting the fan to be broken, but found another problem - it's just ...
4
votes
1answer
45 views

What is the correct placement of a 2nd story through-wall bathroom vent

I have a 2nd story bathroom which is a little too humid unless the window is left cracked all the time, greatly decreasing the efficiency of our HVAC system. I would like to install a bathroom fan ...
0
votes
3answers
66 views

Is it safe to have 3-switch light-vent-heater on 20 amp circuit with another light switch and a GFCI outlet?

Downstairs bathroom has a dedicated 20 amp crcuit. First in line is a GFCI outlet which trips the downstream light switch (for over mirror light) and a three-switch (for ceiling vent/light/heater ...
1
vote
3answers
114 views

Why is the white wire hot in an bath exhaust fan switch circuit?

Tried to figure this out from previous posts but am still confused, and afraid. Our 30 year old exhaust fan had a light, fan and heater. We're replacing it with a fan/light combo, no heater. The ...
0
votes
0answers
15 views

HRV Supply/Blower making a terrible sound

Here is a video (with sound): https://streamable.com/w8tgqk (You have to go about 0:20 in to hear the sound). I got unlucky during recording and the sound was more intermittent, but normally it's loud ...
1
vote
1answer
81 views

Ventilating a cat box through the dryer exhaust duct

I have a small closet that doubles as a laundry room, with a stacked washer and dryer. It's also where I keep my cat's litter box. It occurred to me that I could probably reduce the odor of the litter ...
1
vote
0answers
20 views

bathroom switches into a pir/motion sensor

I have a two switch box in my bathroom that controls a ceiling fan and light. I bought a TDHOS5, Dual Technology Humidity/PIR Motion sensor with the goal of replacing both switches. I can’t seem to ...
1
vote
1answer
75 views

Any issues wiring bathroom exhaust fan to low-voltage heated mirror?

I'm in Maryland, US. I was hoping to wire from the switch: https://smile.amazon.com/gp/product/B01CXXZV96/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 to this: https://www.clearmirror.com/...
1
vote
0answers
17 views

Options to route bathroom exhaust fan

I am trying to install a bathroom exhaust fan but I am not seeing a real good way to get outside. The first picture below shows my ideal spot for the fan represented by the new work box. If I were to ...
1
vote
0answers
32 views

Bathroom fan wiring

I am trying to install a bathroom fan and am having some issues. The sketch below is how I curently have it wired. (blue in the sketch are the white wires) Previousy there was a single switch that ...
0
votes
1answer
51 views

Wiring for new bathroom fan

I am trying to add a fan in a bathroom and need some wiring assistance. I removed the switch thet controls the overhead light and found 2 black wires attached. From the research I have done it seems ...
0
votes
0answers
13 views

Bosch range hood fan low hum and not sucking air

Something is wrong with my Bosch range hood fan. It was working on low but when I switched it to high it started making a low humming sound like it was really struggling and not sucking up air at all. ...
0
votes
1answer
61 views

Two countdown timers connected to one inline fan — Does it work?

I'm planning on replacing two old bathroom fans with a single inline model installed in the attic (Panasonic WhisperLine). It will be connected with the two bathrooms through a Y-duct and exhaust ...
0
votes
1answer
62 views

Bathroom exhaust fan and light switch separation

new here and I tried the search but can’t seem to find an answer to what I’ve got. In my bathroom, I have 2 switches. When top switch is on, bottom off, the vanity light and the exhaust fan light ...
0
votes
0answers
39 views

Ductless 1/2 Bath Vent - yes or no?

From what I can understand, code says any bath fan needs to be vented to the outside. I live in Denver, CO and have been told that I can use just a charcoal ductless fan in the half bath we are ...
1
vote
1answer
182 views

Is it safe to drill a 6" hole into a beam or i-joist for range hood duct?

I'm installing a range hood over my island after a kitchen remodel and I ran into an issue. If I try to run the ducting alongside the joists in the ceiling I run into a beam which looks to be ...
0
votes
0answers
39 views

Help with Range Hood Wiring [duplicate]

I need help with wiring my range hood fan. My challenge is I need precise instructions on how to connect the 3 wires. Please see new range hood wiring diagram attached. How do I connect wires 1, 2 &...
-1
votes
1answer
84 views

Range Hood Fan Wiring

How do I connect the Red and Yellow wires from the fan to the Black and White wires from the power outlet? The range hood also has one red wire coming from the fan switch - how is this connected to ...
0
votes
1answer
74 views

How to remove this ancient exhaust fan?

It seems to be held in by those metal strips that I can't budge.The wood that it's up against is thin- only about 1/4 inch. And the metal part starts/stops at the visible wood and extends beyond sight ...
2
votes
2answers
37 views

How to separate bathroom light from fan

I am trying to separate the light and fan to two separate switches. I took the black wires apart and tried each one separate. One did nothing, and the other turned on both. I’m assuming this means I ...
4
votes
2answers
102 views

Whole house fan - unexpected voltage at high/low switch

I have this fan installed. Here's the wiring diagram... The fan has been running fine for about a month and all of a sudden it started acting like it has no power. I checked the voltage at the power ...
2
votes
1answer
65 views

Will I have trouble running a bathroom fan 10 CFM (25%) stronger than needed?

My bathroom measures in at 289 cubic feet. Dividing that by 7.5 and rounding up gives me a target fan capacity of 40 CFM. However, there are many more fans available at 50 CFM. I read this post, Are ...
1
vote
2answers
63 views

Can I (should I) do anything about these open PVC exhaust pipes in regards to rain or pests

I moved into my current home recently and noticed these exhaust pipes are open. Do I have to worry about rodents or insects getting in? Can I improvise a makeshift screen with some additional PVC pipe ...
0
votes
1answer
30 views

Bathroom exhaust fan wiring

Hi all I am needing help. Wires to fan box 1 white , 1 red, 1 black and 1 ground. The new fan has Pair - white & black Pair - white & red Pair - white & blue 1 ground [see pic)
0
votes
1answer
43 views

Bath exhaust fan issue

We closed on this new construction townhome in January 2014. 6 1/2 years later, cleaning the Panasonic exhaust fans in all 4 bathrooms, to my astonishment, basement bathroom fan has no ductwork. Fan ...
1
vote
1answer
37 views

Type of insulation for flexible aluminum duct?

I’m replacing an undersized bathroom exhaust fan with a larger one that has a higher CFM. When switching the fan out, I want to add insulation to the flexible aluminum duct that goes from the fan to ...
0
votes
2answers
33 views

Ventless vs nonventless

We are remodeling a bathroom. Currently it has an exhaust fan vented through the attic. We purchased a Broan roomside series surface shield. (No attic access required with ezduct connector, no attic ...
1
vote
0answers
44 views

How do I connect my new bathroom exhaust fan to the old duct that isn't lined up for the new fan?

The old fan died, and I'm trying to install a replacement. The old one was 80CFM, and, despite it working 24x7, the groundfloor bathroom was always a little damp. The new one is a fancy Panasonic, ...
2
votes
3answers
142 views

What is the name of this plug/socket combo from a rangehood?

I have a rangehood with some lights for illumination. But they're expensive lamps, mains voltage, not very bright and they run hot. So I'm looking to remove and replace with something LED based. ...
0
votes
0answers
50 views

Venting a hot garage, how much cooler can it get with an exhaust fan?

I life in Miami and the garage gets very hot in the summer and I am trying to cool it down so I can workout in it. The basics are: I'm looking at this product: iLiving - 10" Wall Mounted Exhaust ...
0
votes
0answers
49 views

Exhaust fan in Toilet room off the master bath

I understand it is code for exhaust fan in the Toilet room (Small 4x5 room with door) this room is off the main master bathroom. Do I need another exhaust for the main bathroom for code? Can I put a ...
0
votes
1answer
287 views

Help wiring a bathroom exhaust fan/light combo on a single switch

I currently have a single pole light switch that powers a exhaust fan/light combo unit. I am replacing the old unit since the motor blew on it. The wiring coming from the ceiling is black, white, red, ...
0
votes
1answer
81 views

How to protect exposed bathroom fan wiring

I‘m replacing a builder’s bathroom vent fan and housing. I have two problems. The new housing’s knockout cover is missing. Manufacturer doesn’t have a replacement. The (rigid metallic) conduit leaves ...
0
votes
2answers
69 views

How to find a non-switched wire in attic

I'm trying to add a whole house fan in the attic. Currently there are many power cables in the attic and as far as I know, they all feed lights and bathroom fans - implying they are all switched. ...
1
vote
1answer
21 views

AC switch with two mutualy exclusive power lines

I have deconstructed my bathroom fan and found three wires coming from the wall: N -- neutral A -- has 230V only when light switch is on B -- has 230V only when light switch is off I wonder how ...
0
votes
2answers
49 views

New gas range setting off smoke/gas detectors

I converted our kitchen's range to gas. The gas line was installed professionally but I connected the new stove. As part of setup I heated the oven to 350 to test the burners. Soon after reaching ...
2
votes
0answers
128 views

Why is my dryer producing condensation and wet inside when it is not in use?

During the recent one year, I have noticed my dryer is producing condensation and wet inside when it is not in use. I live in a 5 units apartment building and I am on the top floor. After I cleaned ...
0
votes
1answer
72 views

Exhaust fan and light on same switch

I want to add an exhaust fan to my bathroom. Do I run power from the light switch to power the fan or do I run power from the light box. Thanks as of now there is a single pole do i use a double pole ...
0
votes
0answers
43 views

CFM ratings of inline duct fans far exceed the ratings for their intended duct sizes. What are we to make of this when designing a system?

My garage is 25×29' with 10' ceilings, so 7250 cf. I'm hoping to be able to turn over the air every 3 minutes or so, so aiming at using 2 fans rated at a total of 2400cfm. The fans I'd like to use ...
2
votes
1answer
110 views

Bathroom fan duct connection for maintainability

There are many questions on here about installing duct work for bathroom fans, but I have a more specific question. I am planning to use rigid duct for a new bathroom fan where there was none ...
1
vote
1answer
33 views

Need help with wiring for bathroom fan

I am trying to replace my bathroom fan. The old fan had a light, but I am replacing it with a basic fan with no light (Hampton Bay #BPT13-14MG). The ceiling has two pipes that each have one white ...
0
votes
2answers
49 views

Old bathroom exhaust fan replacement

Hope everyone is safe and well. My house came with this old bathroom exhaust fan. The fan works but I feel it is not strong enough for the bathroom as my mirror and bathroom become foggy during a ...
2
votes
1answer
113 views

Humidity sensor switch wired to current setup

I have a DewStop FS-300-W1 humidity sensor that replaces a light switch that has a red, black, white and green wires. I want to replace the left most switch (that currently controls the fan) with the ...
1
vote
2answers
42 views

Ceiling fan/light in bathroom shortcuts when humid

I have a ceiling fan/light combo in my bathroom ceiling. It's hooked up with those white connectors you see on this picture: When someone takes long showers, especially at night when the temperature ...
21
votes
5answers
10k views

Bathroom exhaust fan without duct

I just found out that our bathroom exhaust fan has no duct attached to it. Our current fan is Panasonic FV-08VQ2 (90 CFM, 4" duct diameter). The fan just blows the air to the inaccessible attic. There ...

1
2 3 4 5
7