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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602 views

Convert bathroom exhaust fan/light combo to light only with 3 way switches

I have a Nutone exhaust fan/light fixture in my bathroom. The fan and light are each controlled by their own 2 pole switch, one is inside the bathroom and one is outside. I want to replace the ...
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1answer
4k views

How to connect a 3 wire plug to a 2 wire outlet?

Bought a vent fan that came with 3 wires, but homes here are only 2 wires (not sure which but no ground). What to do with the extra neutral wire? Should i cut it or twist it with the other two??
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95 views

BathroomExhaust fans run continously? [closed]

How much energy is wasted for the continuous operation of two bathroom exhaust fans? Why are the wired this way?
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139 views

bathroom exhaust venting to a roof vent

I am disconnecting a bathroom exhaust fan that is vented to a roof vent in my attic. This caused condensation/moisture in my attic, which became apparent on these cold winter days. Some of the ...
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63 views

my new exhaust bathroom fan wiring issue

The fan unit itself has a black wire, a white wire, and 2 green/yellow wires. Where do I tie in the green/yellow wires?
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1k views

How can I add a bathroom fan to the existing end line light switch?

I would like to add a bathroom fan to the existing end line light switch. I am fine with the switch controlling both the light and fan at the same time as the light only has 14-2 running to the ...
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2answers
1k views

Switch working intermittently

My master bath has 2 switches. The switch on the left (1) goes to the light. The one on the right (2) goes to the fan. The light works fine. The fan only works intermittently. It takes 2-3 flips ...
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1answer
496 views

Will a Broan 750 fit in the same cutout as a NuTone 8664RP?

I would like to replace a 'disappointing' bathroom ceiling exhaust fan with some other brand, but have the challenge of predicting what is compatible with the existing drywall cutout. Few online ...
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1answer
279 views

How do you wire a 3 switch box in a bathroom?

I'm replacing an old outdated 3 switch unit with a newer one to match the rest of the bathroom. One switch controls a light, one controls the exhaust fan, and the third controls a heating element. ...
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60 views

25 feet vent ok for bathroom vent fan?

My old bathroom vent was just vented into the attic and I would like to run it to the side of my house and that is about 22-25 feet. My bathroom is 11'x6' with a 110 cfm fan. I live in Southeast PA. ...
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28 views

Exhaust fan and corresponding power switch in each of two bathrooms, with both fans being turned on simultaneously by actuating either switch

Each of two bathrooms in the Condo we just purchased, has a ceiling exhaust fan and corresponding control switch. For some reason, changing the state of the fan in either bathroom, by changing its ...
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27 views

Replacing a kitchen exhaust fan

Here's an exhaust fan in the ceiling of a kitchen that's probably around 40-50 years old: A non-contact voltage detector shows that the fan does get power when the wall switch is flipped on. However ...
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18 views

Garage gable fan through truss

I'm looking to install a ventilation fan in my garage. I want to install it in the middle (mainly for looks) rather than having it offset to one side or the other. Am I OK to cut through the middle ...
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1answer
35 views

How to retrofit existing kitchen exhaust fan

I'm remodeling a kitchen that is circa 1940's. In the kitchen is an exhaust fan that sits inside a 3.25x10 duct. I would like to keep an exhaust fan in this location and re-use the existing duct, ...
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2answers
53 views

Attic Fan in Garage of Ranch Home

My attached 2 car garage typically gets over 100 degrees in the summer. I have an insulated garage door. The garage has a sheetrock ceiling and attic space above that is connected to the rest of the ...
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1answer
45 views

Wall exhaust fan

I'd like to install a wall exhaust fan, similar to this one. I want to wire it so I can plug it into an outlet as I dont want to tear through drywall. Which type of plug/wires would I need? The fan ...
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26 views

Diagnose poorly functioning whole house fan

I installed an AirScape3.5e whole house fan. I don't think the fan is operating at its max potential. It just doesn't seem to cool the house down very much when running even when the outdoor ...
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62 views

Questionable electric work

My bathroom light is connected to the same switch that runs my exhaust fan. The switch doesn't go all the way up without an extra bit of a push and then sometimes when the switch is completely off ...
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16 views

Two Exhaust Vent on the ame circuit

Can I install two bathroom exhaust vents (adjacent bathrooms) on the same circuit but with each having their own switch?
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277 views

Can I put in a vented bathroom fan in my condo

I just purchased a condo in Myrtle Beach, SC - it is the first time I have owned a condo versus a house. While exploring, I found that the bathroom fans don't vent outside, they just circulate the air ...
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93 views

How to convert bathroom ceiling exhaust fan to a ceiling fan

I'd like to remove a bathroom exhaust fan and in it's place install a small ceiling fan for better circulation. This bathroom does have a window that opens so I'm not concerned about code nor ...
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1answer
71 views

Wiring bathroom exhaust fan / light

I have a bathroom with 2 wall switches, 1 for vanity wall light and 1 for exhaust fan. I want to replace the exhaust fan with a combination light/exhaust fan. The switch that operates the old exhaust ...
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2answers
264 views

Can I attach a extract fan on a portable a/c unit exhaust hose?

I have a window a little far(+-5 meters) from the room i wish to add an portable a/c. Is it possible to use an extractor fan to help pull the exhausted air from the portable a/c?
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871 views

Bathroom exhaust/light combo - light doesn't come on until fan on

In our guest bathroom, we have a fan/exhaust combo with 2 switches. Today my wife noticed that the light wouldn't turn on until she turned the fan on. Then she could turn the fan off and the light ...
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1answer
361 views

Installing bathroom exhaust fan ( light , fan , and heater with three seprate switches on wall

Need help on wiring light unit. Have three plug-ins inside unit. One for light , one for fan , and one for heater. Have three cables coming into unit. All three cables are 2 wire with ground wire. ...
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1answer
4k views

Exhaust fan venting through soffit where attic has no vent

I am installing a bathroom exhaust fan in a portion of the house which is a small addition to the original house. The attic above the addition is separated from the rest of the attic by the original ...
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0answers
217 views

How to insulate whole house fan opening for the winter (from the inside)?

There is a 3'x3' opening in the ceiling of my second (top) floor. The opening leads into the unheated attic. I want to both seal and insulate this opening to keep out the cold in the winter. (I live ...
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413 views

Increasing exhaust fan duct size

I have a bathroom exhaust fan that has a 3 inch duct outlet. However, I would like to use a 4 inch insulated flexible duct. Is there an adapter I can use to accomplish this or do I have to first use ...
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56 views

Is this large exhaust fan in bathroom installed right?

This window is right where the shower is. Can't have any fan but there. It opens upwards. Hired someone to install this fan but his idea was what you see in the picture. It's not sitting flush on the ...
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282 views

How to vent large outdoor undercover area

I have a large (95 sq meters) undercover area behind my house: A few things to note: The house is just to the left of the picture. The roof of this area slants from the house to the far wall (as you ...
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719 views

Replacing Bath Fan/Light Switch wiring

I'm installing a new bath fan and the old fan had dual wall switches with wiring like so: (One switch turned on/off the light and the other switch turned on/off the fan) The new fan has a single ...
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792 views

Fan speed control with timer?

I'm looking for a device that will allow me to control the fan speed as well as have it timeout. In theory this might work if I used the output from the timer to feed into the dimmer, but it doesn't ...
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65 views

How to build exhaust system?

I light candles frequently in room, and I wanted to prevent candle soot from sticking to the walls etc. How about I install an exhaust system in that room? What other options do I have? How powerful ...
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2answers
714 views

Must I use both cables running to my bathroom fan?

I have two cables running to exhaust fan hook up, each cable with one white and one black. Do I need both black and both white from the cables with the one black and one white from the new exhaust fan?...
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3answers
5k views

Reducing humidity with a fan: top or bottom?

In the basement of my apartment block we have several little storage rooms (~65 sq ft), one for each tenant. Inside of mine the humidity gets a little high to my liking because although it has 2 holes ...
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33 views

Exhaust fan outlet broken

Can anyone tell me if I can buy an outlet for my bathroom exhaust fan? It cracked and I want to replace. Thanks in advance