How to Install a Microwave Hood with Exhaust Fan | This Old House
Вставка
- Опубліковано 28 вер 2024
- This Old House general contractor Tom Silva shows how to install a wall-mounted microwave oven with ducted fan hood. (See below for a shopping list and tools.)
SUBSCRIBE to This Old House: bit.ly/Subscrib...
Shopping List for How to Install a Microwave Hood with Exhaust Fan:
- microwave oven with fan hood
- 2x4s, for reframing wall opening
- 1/2-inch plywood, for covering hole in wall
- fiberglass insulation, used to fill voids in new framing
- expanding foam insulation, for sealing perimeter of hole prior to installing the microwave
- silicone sealant, used to form watertight seal around exterior vent hood
Tools for How to Install a Microwave Hood with Exhaust Fan:
- oscillating multi-tool, used to cut holes in wall
- reciprocating saw, used to cut through siding
- drill/driver, for driving screws
- circular saw and hammer, for cutting and installing new wood framing
- right-angle grinder, used to cut through siding
- caulking gun, used to apply silicone sealant
Looking for more step by step guidance on how to complete projects around the house? Join This Old House INSIDER to stream over 1,000 episodes commercial-free: bit.ly/2GPiYbH
Plus, download our FREE app for full-episode streaming to your connected TV, phone or tablet:
bit.ly/34RYEP5
Follow This Old House and Ask This Old House:
Facebook: bit.ly/ThisOldH...
Twitter: bit.ly/ThisOldH...
bit.ly/AskTOHTw...
Pinterest: bit.ly/ThisOldH...
Instagram: bit.ly/ThisOldH...
bit.ly/AskTOHIG
For more on This Old House and Ask This Old House, visit us at: bit.ly/ThisOldH...
How to Install a Microwave Hood with Exhaust Fan | This Old House
/ thisoldhouse
Nice! I like the fact that they showed a project that ran into some obstacles, and how to deal with them. In real life you usually end-up running into obstacles like they did here.
Good job This Old House.
I don't think this was sarcasm... It's true.
they didn't show the 3 trips to the hardware store though
I'm installing microwaves but they don't let me exhaust them out
My "obstacle" is the microwave is on an interior wall and I have to run about 20ft of ductwork. Sigh.
0:41 It doesn’t matter that the electricians made such a big hole in the wall, cause I’m going to make a bigger one.😂😂😂
No.1 comment.. you just made my day
Lol! They do make holes sometimes
The smaller hole wasn’t even used such a waste of money
Many contractors would have skipped half those steps and you'd have a nice breeze coming in. That's a job well done!
I like how he preinstalled the screws before putting the 2x4 pieces into the wall. I don't recall ever seeing anyone do that before, but it looks like a great technique.
guy is a genius
That's a trick only experience will teach you.
Well possibly same here
I just finished installing my range hood with the rectangular vent out the back. This video was one my main sources for help. Thank you.
The port out the back left me with some questions. 1. It had a damper on the back of the microwave, I would have removed it because there was one on the outside did he leave it or take it off? 2. Does the outside duct slip over the inside? How does the outside vent mate to the microwave? Since siding or stucco may have different thickness did the outside duct need to be trimmed? 4. If it was a loose fit slip joint would a bead of silicone be helpful to seal the two ducts?
@@michaeldose2041 I've got the same questions, Michael. It appears that in this installation, both dampers are active, which probably cuts down on the efficiency of the exhaust fan. I worry about how the vent mates to the microwave. That seems to be a connection that won't be airtight. If you find answers, please share them.
@@michaelzeis7712 I just finished installing mine. I made the decision to eliminate the inner damper as I see no useful purpose and possible future problems with it i.e. one less thing to go wrong/better air flow.
@@michaeldose2041 Thanks. So, about your Q 2 above, how do the two parts (outside vent, inside back of the range hood) mate up? Do you just push them close to each other? When the joint is accessible, as it is with a circular vent coming out of the top, people tape the joint to prevent air from escaping.
@@michaelzeis7712 That's a great question and it is completely ignored in this video. The outside vent duct is made to fit over the vent flange on the back of the microwave. I got mine at the big orange box. I believe the outer duct it is intentionally made longer than you need so that you could trim to fit and accommodate different wall thickness. My house was stuccoed so I have an extra 1/2-3/4 material on the normal 2x4 construction. Mercifully, there was no trimming needed for me. What I did to get a better seal is put neoprene weather strip around the flange on the back of the microwave. I covered the weather strip with metal tape to give it more strength. When I put the duct from the outside over the flange on the microwave, the outer flange sunk into the tape/weather strip and gave me a nice seal. That might be overkill but it wasn't hard to do and I would prefer the inside of the wall not turning into a gooey mess in the years to come.
Great video. Shows what actually happens when you do a project like this one. Nothing ever works out perfect.
its not very accurate ... its missing the curse words :P
Mannnnnnn so sorry for all this people
Sometimes it goes as planned
@@romeoneverdies exactly!! I'm sure it's in the blooper reel 😂
It was very badly done.
Wow, this is the most work I have ever seen Tom do on 1 of these house jobs. He's so skillful in everything he does. That lady is lucky he took over 95% of that job.
Everything seems to go so smooth When Tom does it. Even when he has a problem and it still only takes 10 minutes for him to do the job. Just put the two screws in from the top into the microwave he says. That took me two hours.
In real life you don't get to edit the four trips to the hardware store.
I like the way they show you how plans change mid job.
i agree about the showing of real life complications. Always excellent real world DIY advice from the class crew at This Old House. Thx Mr Silva
The blocking aspect turned this into a more complicated diy project. Tom’s commitment to quality and attention to detail is a dying art in this country.
Not every contractor would have done all that I'm thinking.
How about that 12 gauge wire that he pinned against the exterior wall is that code acceptable or should it run through that header 1 1/4 in minimum from the face of the 2×4 header? Maybe notch it in possibly?
I love the old battery operated drills and no sleeve on the drill bit. Still one of my favorite shows when it's on PBS.
It’s a festool drill. Far more better quality and higher priced than any Milwaukee or dewalt drill. Look them up.
@@brianhoover478
I will. Thanks.
Great video and expert work. It helped me decide to say, "Hell, no!" on self-installing. Haha! Unfortunately, good tradesmen are very hard to come by in my small town.
Aww yes! This old house were everything goes together the first time without ever having an issue.
jlb197736
I wonder if the ever scream bad words when the camera is off like I do? lol
Mark Hoffman you know they do lol
You could tell there was a lot of improvising on that job.
Tommy doesn't make mistakes.
there was an isua, a stud
Tom can do anything with his sawr. Somewhere in the area of Havad Yad ya know...
Keeps it in the drar ya know...
I love this show very very much! Love Ask This Old House, great tv show.
Thus was really good video showing from start to finish what needs to be done. Often for TV steps are skipped leading one to think everything is easy and works out as planned and in done in minutes. Good to see no steps were skipped. I Have a project like this to do! THANK YOU!!
Tom is the MAN. This is such a great, informative video that shows there are always little snags/unexpected hiccups in anything DYI. I just need someone to get Tom a better drill lol.
I had the exact same vent type installed. Was fine in the fall, as soon as winter came, it didn't stop any cold air from getting in. My brand new range hood had frost inside and eventually stopped heating. The LG repairman said it's a horrible design for anyone to use where the temp drops below 40°, but there's no warning against it in the manual.
Mine does same thing' Have ice in the microwave in the winter. I would like to know what can be done if anything to fix situation.
@@stevekline5608 did you find a solution?
Depending on the power of the motor you can add a second damper flap- think of a dog door that only swings one way to let the hood vent blow air out but not let cold air back in. Having a second one blocks most of the cold air on the first outside one, then has an air pocket that helps insulate before the second damper helps to further block air intrusion. Also making a rubber damper seat for your single damper will help it to seal better against backflow, but you have to be careful and make sure it doesn't cause it to stick (I have used a light silicone lubricant to prevent sticking)
@@stevekline5608 If you vent to the roof, no problem. I went through the attic and installed the exhaust pipes, not too bad.
I'm just wondering why you guys didn't take out the range,it was on your way ! But perfect installtion 👍
I love it how they did a "How to use a ladder" video and he is doing exactly what he said not to do while on a ladder and that's to sit on the top of it! LMFAO!!
I purposely opened the comments section to see/comment on that very thing! Lol. Yikes
Dude is a stud
_''Do as I say, not as I do''_
Great video. Liked that there were issues to solve. My one question is doesn’t the exhaust vent get connected to the microwave in some way?
gee and all this time I thought that was a shelf on the ladder for paint and tools. Now I can reach the sky.
Running in a damp basement for over 10 years now. Great fan for the money.
I never get ‘exhausted’ from watching these videos. GET IT ???? Guys ??....
TOH really has made videos for everything huh? I always wondered how it works when there is a microwave directly over a stove. Nice.
Most microwaves just blow the air right back into the kitchen though. Don't really see the point of that myself.
Oh thanks man, I was installing microwave over the stove microwave, I ran into this and this is what I ran into
Tryingto troubleshoot an issue. This should help a lot; thank you.
Matching those hole for the microwave top bolts is maddening difficult. Tried two different times with lots of frustration.
Me watching this as if I'll be able to do all that when I can barely assemble Ikea furniture.
🤣 same
This was a great video and i watched this and then did it in my kitchen but did anyone notice that Tommy had already marked the holes before doing it o camera
Just wished I was able to install one over my stove that vents outside. Unfortunately I live in an apartment and have one of those cheap ones the landlord installed that blows all the exhaust right back into the inside. Worst thing they ever made and should be outlawed , if you ask me. Those things does nothing, but blow all the food odors and grease all over your house.
They have filter that should be replaced every 6 months but most people don't know or are too cheap to do it.
@baletashakur - I know and I frequently replace mines quite often. Still not helping the fact that it’s still blowing all that greasy air and odor right back into you house.
@@baletashakur Did home inspections for 20 years saw countless numbers of those types of filters still covered in the original shipping plastic or impacted in cooking oils and grease that the home owners had no clue about.
This old condo needs a vent like that... thanks for the know how. I just don't know if I will get it done that perfect... like yours... I hope so... Thanks
so..
As someone who installs and replaces over the range microwaves, it’s never this easy.
Uh, this didn't look easy.
Generally if you're replacing an existing over the range microwave it should be much easier than this video.
The port out the back left me with some questions. 1. It had a damper on the back of the microwave, I would have removed it because there was one on the outside did he leave it or take it off? 2. Does the outside duct slip over the inside? How does the outside vent mate to the microwave? Since siding or stucco may have different thickness did the outside duct need to be trimmed? 4. If it was a loose fit slip joint would a bead of silicone be helpful to seal the two ducts?
Holy stripped screws, Batman!
so these vents are usually universal for these microwaves?
This guy is awesome...
my luck dictates the center of the vent will end up right on the edge of the siding so i’ll have to fill in the void.
Jeez, [toh] always the best, these guys....Im lucky if my hires show up on time, Im not alone either. I dont know whats going on w trades people these days!
Thanks again for sharing your knowledge about How to install the vent but How to do it right . You’re a master. Very good vid to learn it from you 👏 🙏🥰👍Subscribed
should of got the electrician in when Tom did his work.
When ever i got to cut a hole or work like this where i have owned the air is so bad makes you say just throw it together as quick as possible to het out of there.
Good video demo.
I thought the crimped end of the vent should face away from the airflow?
This is exactly what i need to do, including the header. The only thing I don't understand is why didn't he pull out the stove? It would've taken the same amount of time as covering it and made everything else so much easier.
actually i would have pulled the stove as well as the glass could break ... in fact i think that is exactly what i did when i installed mine. also lifting the mw on your own is a bad idea...
I’m kind of surprised that he doesn’t have a ridiculously expensive Festool oscillating saw wit built in dust collection
I've always wondered about the. I just looked it up and was shocked about the price 😳!
awesome! I have the same situation with a stud and was stuck. so glad I found this clip. thank you!
Everyone will run into one stud, given the width of the opening for the microwave, so count on framing it out like Silva did.
Worked with that siding ( fiber cement board) many times as a carpenter. It's very similar to a asbestos board, very dusty when cutting. Always thought they were going to come out and say that it's
cancerous. Lol I never wore the recommended respirator.
Vinyl.
Give it 20 more years. Then they’ll “discover” it. 😮
Ok so how did he cut the stud behind the wall so the header could fit in there? They didn't show him doing that step?
Excellent video. I have existing 10inch diameter ducting to the outside for my Broan OTR exhaust fan. I want to replace the exhaust fan with a slim Kitchenaid 1.1 microwave. The problem is Kitchenaid describes a rectangular to round piece that is 6 inches in diameter. My question is can I use a larger translation piece to my existing 10 inch exhaust piping? The new fan is 500 CFM
amazing. i wish we had those in brazil
I'm looking to replace my over-the-range microwave, and my exhaust vent is located where/how this one is. I'm trying to pick out a microwave that matches this. I see 'fan location' and 'vent location' as options in the specs of the microwaves. Do I need a particular one for this type of vent?
Mmmm I love inhaling those insulation fibers
I love Ask This Old House
I can't believe he just pinched the romex between the framing and the exterior sheathing like that.
Should of nailed it to the side of the stud or wherever with romex staples.
I think there is a small space on the back but I ain't sure all he had to do was cut some notches in the 2x4.
It's fine until some puts a fastener through it when re-siding the house.
@ 4:07 is where you can see it, if anybody else is wondering what they're talking about.
Worth noting that the house is framed with old lumber, so a 2x4 measures 2" x 4", and the new lumber he's installing is 1.5" x 3.5" - so there's a half inch of space between his new framing and the sheathing.
It's still gonna cause problems in the future and should be stapled to the side of a stud as Jason said. This is how you can tell that Tommy isn't an electrician ;)
pufthemajicdragon Should have disconnected at outlet then drilled new holes in header then re route the wiring to the box through the new wood imho.
I’ve got a gas pipe running vertically in my wall space that will interfere with required microwave oven vent placement.
Ideas for simple and code compliant work-around?
Simple work around is to not use a microwave. I stopped using it years ago because the 2.4Ghz microwave radiation might be unhealthy. I detected it leaking out of the microwave across the whole room with my Acousticom2 meter.
I'm sure somewhere in this old shack warehouse there is a bigger ladder. Safety first.
5 speeds gives tommy the eye
Where’s the clutch for the 5 speed fan
I like that
Great work!
I followed these instructions but when I cut through the wall to install the vent I cut through into my shower. There is no outside like this project. What do I do now?
Please tell me you're joking
THE outdoor finisher you stick on the wall whats the name of that?
Range exhaust hood. Sold on amazon.
What can you do when the gas line runs right through the middle of the wall? Kitchen on 1st floor so venting straight up is not an option.
fans got 5 speeds just like Tom Silva
How do you know where to drill holes from the top to get into top of microwave. Theres some steps missing, good otherwise
His use of the ladder is something you see on safety videos on how NOT to use a ladder.
i did and last time i did that it scared the shit out of me ... ( figuratively)
It is a very good job
You're not a safety nerd when I just watched him do a video on ladder safety then he goes and sits on top of it.
straight reality
good job tom
When drilling a Robinson screw bit, you need to be in a straight line so it does not skip like in video
They use “Robertson” screws in the great United States of America?!! What’s next, the metric system?!! Lol
😁🇨🇦
Thank you for making this video that is nice tool what model and brand is the fist tool you use?
Here's what I learned watching this...
Totally worth the 179 or whatever I pay to the guy to install the Microwave when I buy it from Home Depot or whatever...
So why watch the video?
I guess my only comment would be that the stud should have been located before work started. Then the only reasonable option would have been to route the vent up and out the wall through the cabinet above to prevent structural work. The only reason to do the structural work would be if the customer really couldn’t spare the cabinet space which would be crazy. Buy an extra bank of cabinets for what the structural work would cost in permits and engineering work alone.
Thank you for your video air
great vid ... well done tks
My electrician should be Hank you tomorrow, exposes a way to run the wire to run it into over the cabinet
Did he pinch that wire behind his frame out for the duct?
Festool
Fein
Product placement and sponsors
Milwaukee Sawzall, no charge
Good 👍 job this will help at next gig 2moro
Now THAT is how you install a microwave
Omg you guys are so judgmental! I'm sitting here thinking, "I hope there's a stud behind there so I can see how to do what I need to on my project!" and thrilled that there was. I could give a shit less if he's standing wrong on the ladder or wearing a mask. It's a good thing you guys aren't in charge of me tearing a hole in the side of my house, cuz you'd all be pulling your hair out! LOL
Make sure to remember to only cut a stun on a non-load barring wall, otherwise it could collapse!
@@tankert3425 That was an external wall, thus load-bearing. The studs around it can take the load for the short time it took him to replace the support.
@@tankert3425 I am stunned!!
I get a kick out of the people in the comments section
How did he manage to strip a Robinson screw?
What if the other side of the wall is not outdoors?
What is the purpose of all that extra wood that he put in, header & plate and the jack? Also why put the wood around the vent? And if the stud wasn't in the way and you didn't have to make that wood frame how would you hang the microwave? Surely it can't just be held by the drywall?
There's always bound to be a stud somewhere cause they are 16" apart and the microwave is at least 30" wide. If you cut away part of an exterior stud that supports the house, you have to add support with a header under it.
I believe the plywood is always required (although he didn't mention the tickness I would use at least 1/2" thick) in order to screw in the steel framing to support the microwave.
Correction: he made sure he screwed the the steel framing into the solid wood.
So the frame is just there to support replace the part that cut off, that is to make sure that stud has enough support under it? It's got nothing to do with holding the microwave right?
VanillaSnake21 That's right. But while he was at it, he also added another small piece of wood to make sure the steel microwave mounting frame screwed into solid wood along both sides and along the bottom plate he added
***** that makes sense, thanks for explaining it, I just wish this video went into more detail.
I mean as a professional handyman. You picked the most convenient easiest possible scenario that could possibly happen besides the stud placement. The one i installed wasnt on an outside wall. Had the laundry room behind it and was in the middle of the wall. Had a second floor bedroom above it and no clear inside wall access to the roof. Had to run the vent pipe in the space between the top of the cabinets and the ceiling across the kitchen to the outside wall about 3 feet left of the kitchen window. Not an ideal install to say the least. I wish i did yours instead.
Homeowner: Not only do we have a fan, but it has five speeds!
Tom: Umm..... congratulations on your five speeds?
2:42 sounds like homeowner whispering to a child? "Nuh-Uh"
Pretty positive she said "Nuh uh! No, it wasn't!"
Why would you smash the Romex Wire against the outside wall like that. Should have notched out the 2x4 and protected it with a nail plate
That bugs me too. The pinching is a fire hazard, plus there's a small chance the siding will get replaced and a nail will come through right right where the wire is running.
You forgot to show how you drilled the holes in the cabinet above the microwave.
Mine is even more fun than this! My stud has a gas line and a 220 line running down it.
nice video, except for the unsafe use of the ladder . they are not designed sit on top of the ,always use the right size ladder,
If you be using drywall or sheath rock instead of plywood do you still need to install vapor barrier?
Yes, the old Kraft paper insulation was the vapour barrier. Since he cut it out, new vapour had to be installed.
Old houses always have hiccups. Just curious, I don't think a 6 foot ladder makes for a good sitting stool, 6:39.
I'm just here to see all the safety nerds call him out for every little thing. Get a job
Dereck Blevins I’m just here to call your bullshit 2 years later and see if you still troll this old house, safety cap.
What if it is my job to call people out on their heath and saftey practices?
I mean he wasnt properly standing on the ladder
It's a show that teaches, shouldn't they teach well?
Safety first buddy
where did get the plastic vent thing?
At 8:28, the metal washer is needed.
Go Pats!
7:25 - MONEY SHOT