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How to Install a Through-the-Wall Exhaust Fan | Ask This Old House
ฝัง
- เผยแพร่เมื่อ 26 มี.ค. 2016
- Scott Caron, master electrician for Ask This Old House, helps a homeowner put in an exhaust fan to rid her kitchen of smelly cooking odors.
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Scott installed a Broad 507 Chain Operated Utility Fan, which is manufactured by Broan. Scott used cellular PVC to shape the frame housing for the fan. That can be found at most home centers. Expert assistance with this project was provided by Caron Electric
Shopping List for How to Install a Through-the-Wall Exhaust Fan::
- Exhaust fan
- Nonmetallic 14-2 sheathed electrical wire
- Wire connectors
Tools for How to Install a Through-the-Wall Exhaust Fan:
- Stud finder
- Utility knife
- Reciprocating saw
- Drill/driver
- Pliers
- Wire cutters
Steps for How to Install a Through-the-Wall Exhaust Fan:
1. Use a stud finder to locate studs and find an empty bay to install the fan. Or drill a hole and use fish tape to find structure.
2. Using a pencil, trace an outline of the circular exhaust housing.
3. Cut out plaster using a utility knife.
4. Remove lathe using a reciprocating saw and remove any insulation that may potentially block exhaust.
5. Outside, trace an outline of the dimensions of the square exhaust housing and remove siding with the utility knife.
6. Trace an outline of the circular exhaust within the square dimensions and remove sheathing with the reciprocating saw.
7. Screw the outer square exhaust housing to the structure using screws from the kit and a drill/driver.
8. Locate an electrical source with constant power.
9. Connect nonmetallic 14-2 sheathed electrical wire to the power source by splicing the wires together using pliers. Cover the connections with wire connectors.
10. Place the circular housing in the hole, pull wire through, and make the connections to the electrical box.
11. Insert the fan into the housing and plug it into the electrical box.
12. Insert the fan cover using the cap screw.
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How to Install a Through-the-Wall Exhaust Fan | Ask This Old House
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That pull chain looks rubbish should have been a switch.
+iShootBandits Still need a pull chain for the fan's door.
I agree
I personally like it, the retro look and everything, but the problem is that chains BREAK. That's why I'd opt for a switch, and automatic shutters.
Great point and pull chains DO break in time! And then, this lady will have to call someone to fix that.
yes switch better
This cowboy builder just needed a stetson hat. The fan was installed above a sink which will be an electrical hazard apart from ruining the aesthetic of the place and being situated about 12 feet away from the source of the exhaust. Then, he decides to cut from inside to outside. This might not matter with wood framed houses but he could at least have checked what was outside before he started! He seemed surprised that the fascia was sloped downwards as if it was some sort of construction fault that he was helping the customer overcome! My hero. I would not let that guy within ten miles of my house and I would be checking all his electrical work as well.
"There's the smoke, all carrying out right through there"
Yeah, and if the job had been done right by going up through the cabinet and roof, we would see the smoke only at the stove instead of all through the whole kitchen.
However, my favorite is 1:15 as we examine the nice airtight door that's got more warps than the spaceship Enterprise.
😂😂I was looking if someone else noticed and I found ya. Couldn't agree more
Starship Enterprise.
Al Legory 😂😂😂😂😂
I couldn't agree more with that , if you already went trough the dam process of making holes and walls do it right , go trough the cabinet and the attic which is very roomy to do this and avoiding to add and extra machine or just adding an inline blower to bust the sucking power , I totally believe this was absurd and from a high end remodeler stand point , dont do this.
Lol
airtight. Can see visible light through edges.
+Rocco Croce I noticed that. Maybe it wasn't pulled tightly closed.
+Blaine Bugaski it won't ever be, with construction like that lol.
Rocco Croce I was wondering about the gap on the top of his three sided PVC frame as well.
+Blaine Bugaski yes sir that contraption ain't worth a damn.
Who needs something to be air tight when you live in an old home without insulation.
reminds me of the ol' nutone fans from the 50's and 60's that you find in all of the un-updated homes.
This is a really bad solution! The grease laden smoke and smells will have to rise to the ceiling and travel across the kitchen to get exhausted to the outside. That means all the surfaces will accumulate a layer of dusty sticky grease. A better solution would have been to go through the ceiling above the range to the attic and exhaust through the roof. Not much more work.
My advice to the lady is keep using the fan in the microwave with the wall fan. That way the microwave fan filters will catch some of the grease before it takes its 'journey' across your kitchen.
What they should have done is put the fan in the middle of the ceiling, connected to a switch to turn it on, venting through the attic to the outside.
maybe just use the microwave vent while she's cooking and the wall vent for the smell afterwards?
I want to get one so are you saying take out the old exhaust and just put that new one in that spot my attic is right there in the kitchen right by the old one ...
its illegal to vent through multiple rooms
Charles Ajouri v
"Everytime I cook...smells terrible...I want it out of this room..." Sounds like installing a fan is not the only problem here.
lol exactly. . . . . .. That woman can't cook worth crap. Sounds like she has the burner up way too high...................... As a single man, I had to learn that myself........Trust me, I burnt food, set off smoke alarms, etc......................I had to teach myself to COOK AT A LOW TEMP, no matter what. . .. . If you cook something too fast, only the outside gets cooked and not the inside
She did NOT need a vent............She just needed to cook slowly
@@jamedlock83 But for stir fry and cooking with a wok you can't make it hot enough. Cooking in 1 minute is where it's at.
don't be so mean to her, she cooks food for her family not just her-
She probably phrased it wrong. She probably just cooks food that causes strong odors that lingers.
This guy really did a hack job of cutting that interior cut. And this was after he used the ducting to trace a good circle to follow.
It's a lath and plaster surface. It's going to crack and break. I think MAYBE an oscillating tool would cause less damage.
That said, repairing plaster is very, very easy. Give the guy a break.
I'm a licensed and insured electrical contractor and I've installed a fan like this ONCE in 26 years.
electricalron what type of fans do you usually install then?
i usually install ceiling ventilator if room needs to be circulated. i don't like the idea smoke still go through whole ceiling surface including kitchen cabinet. 'Or' i would recommend the owner buying stove with its own fan.
Ok?
thru wall Extractor fans are effective, new ventilators not so.
2:45 . once he stuck his head in the hole, he knew there's no turning back.
Stan S haha
😂 😂 😂
I'm not sure why this comment is so funny but it is!
Thanks, your comment made my day
It's not as powerful as I thought it would be, but it works very well. th-cam.com/users/postUgkxGjG43--gYqIoT4Xkur2PqCrtbKwTv2h There are three options to circulate air, and best of all a remote control for us lazy people. Installation was a breeze (no pun intended). It actually took longer to open the box then it did putting the side extenders on and sitting it in the window opening. It's a perfect alternative when you want airflow, but not the AC. Just might order another one for a different room. UPDATE: Bought another one like I said. They work great. Why not have two...
What you should've done is actually installing a range vent hood.
i’m surprised no one ever disagrees with a new big hole in their house
I’m faced with an unventilated bathroom- old house- no option but go through wall. I can’t get myself to make the cut in the cedar wall ( inside) to put the ugly but necessary fan.
What a lovely view outside on to the lakeside.
Stud finders also work well
They don't work well on lath and plaster walls, lol.
Homeowner: 0:10 fish smell, I want it gone.
Keyboard carpenter: Try summer's eve.......
OMG I'm dead! You win best comment!
Like my comment plz..
Hahaha the pull chain was to high for her to reach.. they had to stop filming to put a extension on the chain and then they continued filming. One scene it's really short and the other it's longer
I've noticed that too 🤣🤣🤣
My house had a vintage '50s era exhaust fan that had a pull chain on it that I kept as a conversation piece - it even works! Should have gone through the attic to vent out - better look and more efficient.
what model and brand name is your exhaust vent fan?Please, post a photo here for us to see it. Thank you.
Everyone's talking about the burn mark from the attic bulb, and twisting the grounds, but did anyone notice he just took a nice chunk out of the window heder?
Where? I know he cut a bunch of the lath behind the plaster but didn't notice a header
This looks like something my mother had in the 1960's
Its always amazing how many "experts" on here can do better.
And what's even worse is little wimps like you that can't even do the work !
not a big fan of this one
Your comment deserves WAY more likes!
So, I couldn't help but notice that the outtake fan has the flapper pointing down, which means the smell will be going out of the fan and directed downward. However, the fan was installed above one of the windows that will likely be open to let fresh air in. So the smelly air will go out the fan and back in through the window?
I suspect he could make the argument that there wasn't a great alternative and that in the warmer days the windows will all be open, so the f
will not be used as much as they would in the winter. Pull chain got me though, I mean really? Her home is an antique but really?
The first thing he stated was that the best way to do this was to fun a vent from the out take fan above the stove out, but that was "a lot of work." They should've done that anyway.
Those are great quality fans I just bought a @Broan-Nutone 509S for my grandparents kitchen easy to operate with a turn of a rotary switch mounted on the grill itself.
Gotta love all the armchair contractors on TH-cam...
Gotta live the armchair trolls thinking that they're cool ! By making comments about real SOLUTIONS ! let me guess... You would have screwed that job up... Exactly the same way ! YEP YOU SURE WOULD HAVE !
After all that unnecessary running the wires so FAR AWAY,cutting a hole in the house,having to make a frame etc: which should have been figured BEFOREHAND WHY wasnt it installed in attic right above and vented there too ? you were standing right there doing the wiring and still didn't install a wall switch to replace PULL CHAIN
I SURE as heck wouldn't hire this guy. time and money could have been saved if the job was properly PLANNED !!
Planning ? Hahah
Yeah, he's a jabroni! What's sad is the people are even dumber...
Didn't ground the junction box, and for God sakes put in a switch, not a dumb pull chain. You had attic access. Could have put a switch anywhere. But the Major problem- vent the range thru the roof. Zero reason not to. Who is this joker? Miss the old guy.
This is is what always happens to me, trial and error, then find the simplest solution. Good one.
I always am cooking fireworks on my stove I need one of these
Lol
I recently married a Filipino woman. She's been used to cooking outside, never inside. She often fries dried fish in our kitchen that'll stink to high heaven. There are also other times where the kitchen fills with smoke. I don't know what she's doing. But this is a great solution for one of many oddities that come with a filipina.
He said lets cook some smoke “pulls put grenade”😂😂
This is why I do the work myself.
Yes this was not very nice work. He should have used a holesaw when cutting lathe and plaster, and the fan should be on the same circuit of the kitchen or its own one. Aside from that, it would not have been that much work to do it right and install a vent hood above the range. Way more efficient as drawing the greasy air all along the kitchen ceiling.
When your contractor says “ok, we have a situation here” you know that’s not good. What a freaking mess.
More money out the pocket lol
Yeah it sure was a 'mess'. Required 2 dollars worth of pvc frame to fix...
I swear YT comments just exist to nitpick and complain. Worse than monday morning quarterbacks.
Was waiting for him to say alright Joan go ahead and burn something
I know the installation job is not the best, but it is not worth all of the hate. If you have nothing nice to say, don't say anything at all.
Never cut into lath and plaster without testing it for asbestos. Horse hair and asbestos were frequently used in the brown coat of this type of finishing system.
i truly dont understand everyones hatred for the pull chain, i think its quite a nice quaint detail
I Used A Different Exhaust Fan And My Problem Was Fixed Yay!
5:10 "Ok, Im going to start a fire in your house..."
This is why an electrician shouldn’t do hvac work
This is why I don't let tradesmen touch my house, for any job.
@@marshaulI am the same. I know what I want and do everything to a very high standard myself.
Yeah the HVAC guys would just run duct work and charged way more and taken way more time
You can be what ever you want, just be on point with what you build...
This isn’t an HVAC job so
I have a really old Fasco exhaust fan in my kitchen wall. It didn't work so I thought I'd just replace it and clean the vent to outside. To my surprise, it had no vent to outside. Why would anyone install it without a vent?
Great video, and I learned a new method of finding a stud, thank you.
When I first saw the fan I was thinking "Man I don't care how well that spring thinks it seals, that's gonna be chilly." Then I see all that no insulation inside the wall. The bare drywall around the attic access. "Oh... Never mind."
Should have caulked the metal vent to the wood frame and the wood frame to the wood sheathing. Also, look at the burn at 4:15. Must have been a fire in that light socket.
Venting outside with the microwave wasn't that much more work. Cut a few holes for ducting and vent up through the cabinet to attic then flex duct to the outside wall.
He would have had to gone through the roof. We saw that he was already at the top of the outside wall when he was only doing it from the kitchen.
Yeah, I agree.
he would have only have to drill a few 4" holes from the Microwave to the Attic that he had to go into already, the vent out of the roof sill OR even tie into the vents that were already there.. But instead he made a ugly vent on a wall with a big 8" hole and pull chains power and had to go into the attic to run new power lines,
Yeah like I want to run duct up a 9 foot ceiling through the second floor 9 foot ceiling through the attic ceiling. Probably a thousand dollars.
Doriesep6622 there is no second floor
*Works amazingly **Fastly.Cool** . I love all the features and the double expansion. For once a fan is almost as tall as my window. Updated but not overly fancy.*
*everytime I cook, it smells terrible*
Lady, I dont think you need a fan, I think you need to read up on how to cook.
Have you ever heard about a vegetable called “onion”?
You are an idiot 🤮
Bagsy well there are various fish recipes that require onions
Here we have a toddler who has never cooked a meal once in his lifetime.
I had a vent like this, in a mobile home I rented back in the 70’s. Lol. TOH has honestly gone to pot in recent years.
You such a smart guy franky
Did anyone notice the burn mark on the interior attic roof where he tied in the fan power (3:51). This light fixture is a fire hazard and should be removed or replaced with something safe. Funny he didn't mention that.
+Eric Weaver - Not to mention that he just twisted the wires together like a cowboy, rather than just using a connection box with brass screw terminals
As long as she doesn't have a light in there, she SHOULD be good........ SHOULD BE
Good catch.
would be best to put an LED light bulb there.
the dust is actually insulation...sadly..
Next time I install a wall exhaust fan at a customer's house, I'm going to do the smoke test... that'll really piss them off.
Heinrich I hear those gopher smoke bombs work really good. Unless you have a cat. And kids. And a wife.
What would it cost to get one of these installed In a bathroom that on an exterior wall?
Electrician: "I have the solution. You need a hole in the wall to let the smoke out."
Voiceover: "It would appear neither the homeowner nor the electrician noticed the window that could be opened to let smoke out."
You’d need something to pull all that smell and smoke out, opening the window wouldn’t be enough
@@bruizzz13 window fan.. lol
thank god i found this comment i knew someone else had the same point
Broan-nutone fine print says do not install near window. cause if its open all exhaust will let back in!!!
Exhaust fans are so good because they are able to get rid of disgusting odors
I'm afraid to ask what you've been cooking.
Can I use the wires of an existing outlet for the power? Remove the outlet. I have 12 gauge wires and 20 amp breakers.
Sure go ahead
I wonder what Tommy would say about him clearly taking a chunk out of the window header at 2:33
As I watched this in astonishment I thought... man, you're going to hit the header... surely they won't cut it out... uhhh...
Day after this was filmed:
Dear This Old House,
Why does my fireplace smoke when I use my new exhaust fan? Please help!
Lights a smoke grenade… hey! Who’s cookin here!
I remember these cheap ugly vents from cheap ugly mobile homes from the '70s & '80s. She should have told where to stick that thing!
That's perfect if the eaves vent to the outside. I'd be concerned about the grease trail across my ceiling.I guess it's better than nothing.
Wow great idea 💡
They may as well have just installed a ceiling exhaust fan like would be found in a bathroom, could have went through the roof or soffit and installed a switch in the wall, considering he had easy access to the area in the attic as seen here.
Another thing you can do is get a big shop vac and put it in the middle of the kitchen. That will suck all the smoke right up and you can empty it outside.
LOL
I hate when a customer stands there looking at your every move. Let the guy work in peace! lol
Imagine adding a camera guy, lighting guy, sound guy, and director.
He's not mentioned or show on video how he cut header above window. Header have purpose to carry weight and they should not be notched
Why didn't he just vent the microwave through the roof?
the installer does not know what he is doing
Maybe a better solution would've been to have a fan in the ceiling right above the stove on a switch and then duct it outside from the attic? That seems like a long way for smoke to travel to be vented.
He literally said that was the best option in the video.
In australia 🇦🇺
We don’t have microwaves above the oven
That is where you put a large exhaust fans that go into the roof ceiling
Interesting where he put the exhaust fan
I would’ve thought he would’ve installed it above the oven in the ceiling not away from it
What a hack job with that interior hole!
like you could do better
I was surprised he didn't just use a holesaw.
And did he get permits and test the lathe and plaster for asbestos before hammering into the wall? No! So there's a violation right there.
MrWolfSnack Agree it should be tested but do you know him or the home owner personally?? Didn’t think so, so how do you know he doesn’t have a permit? How do you know they didn’t already test for asbestos? I’m not saying they did all of that but you shouldn’t make accusations in situations that you’re not sure about.
What about window fan I really have a problem with hole in my wall or any wall
Hack job. Should have left this one to a airflow ducting expert, such as Richard.
You should have shown turning of the electrical breaker before cutting into wires.
People will learn after the mess up once.
You should already know that. Duh.
So if there's a fire in the kitchen a smoke alarm won't sound? Also, is this in a cold climate? If so would you just be losing a ton of warm air come winter?
It would have been nice to see how you got the junction box installed.
The box was already there, had a light bulb fixture.
I use a keyhole saw. It makes a nice round hole in the sheetrock without excess cutting.
LOL. It's lath and plaster. It always cracks. Using a reciprocating saw with destroy the plaster. He actually did a pretty good job.
Use a patching compound like Fixall, you'll never notice the cracks.
Worst solution ever. Grease will build up on the wall before it reaches that tiny fan.
I watched this because I am thinking of doing an in-wall fan like this in my bathroom. But, I agree with some of the other comments below. For a kitchen this does not solve the problem of grease accumulating on the ceiling. Those simple over the stove fans that just vent back into the kitchen usually are not adequate enough to trap enough grease. And I also don't like the pull chain switch. I'm surprised they even still make those, that is what they used over 50 years ago. I know, I replaced a 50 year old one with a pull chain in my kitchen a few years ago. BTW which was behind the stove where it belongs. I will try to find one with a little more modern switch. For such a nice older home, this seems like a cheap fix. And I don't mean "cheap" in a good way. Think I would have spent the extra time and money to vent through the attic. However, with such a long run of vent duct, I don't know how you prevent the buildup of grease in the duct. I guess at least you can clean it off of the walls and ceiling.
Did you do this in your bathroom? I'm thinking about doing the same as I am going to DIY and I can't imagine going through the ceiling and roof. I thought this might be doable, for me.
What did you end up doing for the bathroom? I’m considering do this above the back wall of my shower. I don’t have enough roof overhang to properly vent it out through the ceiling, and this seems like a much quicker job anyway.
I'm curious if you've done this also as I have a 1st floor bathroom with no attic access (obviously), but 2 outside walls. It'd have to have its own switch also as I'd be piggybacking it off an existing circuit. While I don't like the idea of the wall fan, the thought of running a vent hose through the above joists doesn't excite me either.
This is what I would expect to see in a cheap RV.
speechless great job...
Interesting rafter tails on this old bungalow. I wish I could see more of it.
🤥 exactly how I would vent my kitchen draw the cooking odors across the kitchen to a exhaust vent on the other side of the room.
I would have been stressed out. The hole was terrible. The pull chain then to top it off, he light a firecracker on the stove LOL
I wonder if he charged her an extra 40 dollars for the 'frame' he had to build because he did not check what was outside before he started jigsawing out the hole from the inside.
I feel like it would have been less work to send a vent up from the mircro / hood and send it thru the roof. But in all it gets the job done.
I would have done that as well, maybe they couldn't for some reason.
Sometimes allot of work is worth it.
Vin Diesel and Keegan Key had an offspring
The older gentleman did a better job with a bathroom fan vent. Same channel this old house Now thats a video to check out.
pull chain is tacky, should have ran switch or chose a better location. and did this fool light a frigging smoke bomb in that poor lady's house?
Yup he sure did. Apparently to simulate her cooking.
thomas lmaooooooo he get his payment and instantly, smoke out!
lmao yes he did
Seals tight ? I seen less 🌞 on rainy days ! If I were ATOH I'd pull this vid !
He did a nice job for a tough situation!
Most over stove microwaves are ventless with 2filters just vent through there
Really, a razor knife ! If I were ATOH I'd pull this vid !
What's wrong with a vent through the roof? My kitchen has an 8" pipe that goes strait up. It definitely moves the air.
Definitely some missing information. Tile roof maybe?
what is there to stop rain coming in
My choice. Maybe it couldn't be done that way.
Every time you cook, it smells terrible? Don't call TOH, call a cookery school!
Yes.
Right. When I cook I love the aroma and it only stays for a while, unless I burn something, but it still dissipates, just turn on the air and open some doors and windows.
You need to check your smoke detector and just open your window instead of installing the fan above your window.
Here in 2021. Unsure how I feel about this solution. For a quick easy fix, this may have been good, and also for television. But for something that requires more efficiency & convenience over a longer length of time, I think a more controlled way to vent the air out might have been better.
That's gonna make some bird a great new home.
Why does it look like this guy chewed that hole through the wall?
5:00 Amazing Demonstration
The door seal on that fan is warped, it'll leak tons of AC air out
yeah A/C air that high? LOL
@@fizwin1 once the house is at temp, all the air is conditioned, either from cooling or heating.
doesn't this pull all the smoke and grease towards your cabinets, walls, windows, etc.... ?
I prefer to install the triangle shaped exhaust fan when I work on clients remodeling projects.
Literally already up in the attic above the range, decides to install an eyesore anyway
the attics for where the risky electrical work is hidden out of sight
5:21 now I know you don't cook like this. But if you did.... 🤣🤣🤣