How to Install a Microwave Hood with Exhaust Fan - DIY
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- Опубліковано 29 вер 2024
- How to install duct work and exhaust system on a wall-mounted microwave oven.
Instructions:
1. Remove range and microwave
2. Rotate roller to circulate upwards
3. Install microwave adapter with flapper
4. Tape around adapter to ensure no air leaks
5. Measure area of exhaust to cut a hole in bottom of cabinet
6. Cut hole
7. Reinstall microwave and verify opening is big enough
8. Tape area around adapter from cabinet to microwave
9. Measure area to cut hole in top of cabinet
10. Cut hole
11. Run flex duct through hole
12. Attach duct to register boot and tape
13. Seal boot to cabinet with more tape
14. Measure area to cut hole through side of the house
15. Cut hole with drywall knife on the inside
16. Cut hole with jigsaw on the outside
17. Insert hood
18. Attach duct to hood and tape
19. Test for any air leaks
20. Enjoy!
Equipment Used:
Flex Duct
Register Boot
Exhaust Hood
Bosch Jigsaw
www.amazon.com/...
Drywall Knife (related product)
www.amazon.com/...
Foil Tape
www.amazon.com/...
GoPro Hero3 Black
www.amazon.com/...
GoPro Accessory Kit
www.amazon.com/...
![How To Vent Your Microwave Outside [Over The Range Style]](http://i.ytimg.com/vi/RaBGgKc3-W0/mqdefault.jpg)
BY FAR, the easiest step by step installation video. Thank you very much sir!
It's not as powerful as I thought it would be, but it works very well. ua-cam.com/users/postUgkxGjG43--gYqIoT4Xkur2PqCrtbKwTv2h6 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...
There are a lot of good/positives to take from this. But huge negative is that you are not using the correct duct and vent size. The microwave will say a min. 6" circular vent or 3 x 10 inch rectangle duct....Your fan is likely much nosier and will not pull as much air as it was designed to do. The most difficult part of this install is dealing with larger duct. If you go with the rectangular duct to fit the opening in the micro. then you will most likely have to completely sever a stud....which will require you to cut a large hole in the drywall and add a header and jack studs where the stud was cut out.
Or turn it 180 so you dont have to touch the studs.
@@Pepe-dq2ibdid you mean to say 90 degrees?
A 6" duct is not needed in an application like this one. A 4" rigid pipe carries 400cfm. Most Microwaves are at or under that. I installed a 4" rigid pipe out the side of my house because of cabinet clearance on my ceiling. I have tall cabinets and simply did not have the space for a 6" pipe. I actually removed my microwave and installed a Hauslane Range Vent hood. It's rated a 500CFM but that's at full speed which is simply not needed. On low speed the fans are extremely quiet and move a tremendous amount of air. On the lowest setting the vent outside my house will mess up your hair in a heartbeat. I checked it with boiling water and actual smoke from cooking breakfast meat, like bacon and sausage. It pulls the smoke up immediately. I'm extremely happy with how it turned out. I would have installed 6" but simply didn't have the room.
Wrong about the duct size. Look it up.
@@jzm6403
Great work, thanks for taking the time to share, I am sure it added 50% time to your project.
+Jeff Poore Thanks! Definitely had a number of retakes. :-)
Thank you very much for this! You're awesome!
This was very helpful!
It has been seven year....did you ever have to put a booster fan in that long stretch of piping or does the microwave push out enough air on its own?
switching the air draft from the vent to upward a standard option? I noticed you slide in the flap and there seems to be a kit, as the microwave provides for this option. Is that standard with all microwaves? if not , what brand is your microwave?
I can't say for certain, but I most should have the option to either recirculate or exhaust to outside. With that, the fan would have to be rotated to accommodate either method. The flap came with my microwave when I purchased it. If you don't have one, it should be available for purchase. I have a Samsung microwave.
Mamima God b.
thanks. I had since found out some models do give the option. appreciate your prompt answer and thanks for the video
Hello were did you get the Vent Damper for Samsung Microwaves
please don't use flex duct for kitchen hood, besides not passing code inspection, it will hold grease. Use solid pipe, no flexible duct, no screws, and hoods usually need 6" or 8" or even a 10" duct pipe size for better air flow and less noise (see manual for appliance for their specific requirement). you can buy a converter that will allow increase from smaller duct size to larger. And that plug must be accessible, if you care about code/safety, move it over to left or right.
Anyone watching, you should never use flex duct for microwave or range hood. Flex duct is for dryer vent. This will capture a lot of grease and will generate a lot more fan noise.
Samad Abdul what should he had used?
A 6" solid tube, minimum.
Huh?
What type of tape should he had use?
Steel or aluminum. Something smooth
Hey brother, watched ur video almost a yr ago and finally this weekend made it happen. Thank u.
Don’t use flex duct. It will trap grease and you’ll have a fire hazard.
@zonedout5998 even if it's straight up we should not use flex duck and also my vent is 4 inch that will still work right when I got roof installed I got installed but it was a 4 inch vent
Code calls for rigid metal ducting with a smooth surface. What you used will collect grease and potentially start a fire which you insurance company will refuse to pay for.
Great video, I appreciate the help! But I second the flex duct - you're going to want to replace that with rigid metal ductwork that has a smooth interior to meet code & safety standards.
Single wall? And home depot only has this cheap roll it yourself stuff. Anyone sell any good runs of 4" rigid metal lengths?
Correct
I know you say the rigid metal duct is needed to meet code and safety standards, but do you know the reasoning behind this? Just curious.
@@greid9349 Because of the ridges inside, flexible ductwork is more conducive to mold growth, it has a higher resistance to airflow, and the ridges also provide many more surfaces for dust and debris to collect.
Your microwave exhaust fan is rated at least at 300 CFM. Maximum flow through a 4" duct is 180 CFM. A 5" duct is a minimum acceptable for this installation.
Actually, the google says 400 CFM for a 4" duct. www.prolinerangehoods.com/blog/which-roof-cap-vent-hood/ Though I dont see any codes around the exact CFM.
@@eschrader For a 4" diameter pipe to let 400cfm thorugh, the air needs to have the velocity of nearly 4600 ft/min which is 52 miles/hr. There is no way those little motors can push that much air. It's physics and there is no magic to it. If still in doubt, take any manual for an over the range hood, or a microwave with one, and see that the minimum pipe diameter is recommended.
This man is correct. We always run any vent over the range in 6" and never flex. Not bashing this installer but like you said read manufacturers specs for venting on appliance
I have a question? Is that, For connecting the vent hood to the microwave just foil tape?
@@anthonysanchezmistymcelroy8273 The outlook on the hood should slide into the tube a few inches. The more, the merrier, but it's usually about 3 inches. The connection is then taped generously with aluminum foil. I also apply the tape along the vent tubes on the connection crease.
We appreciate the detailed video. Gives us a good starting point when we do our project.
The flex duct is not approved by the IBC for range venting.
Thank you SO much for doing this vid! I have the same problem/scenario in my kitchen AND it's layout is just like yours. I was going to get a few quotes to have this done, but now I think I can be successful on my own. I will consider some of the comments about the ducting. Did you post a vid of your soffit to cover the duct work?
He did not say he is a contractor. He is just a DIYer. Viewer should use your common sense not to do exactly what he did here. Stop being so rude. Why don't some of your know it all do a better video instead.
residential code requires a smooth duct.
So I m glad you got that in but unfortunately it's got a lot installation issues. First off you needed to move the outlet to the right. The venting is very undersized and is the flexible type. Needs to be 6" ridgid minimum, 7" recommended. Also ditch the crappy factory vent damper. I find most times when you connect your venting it gets bound in place. They make inexpensive ones that actually work you can install after the transition.
May I ask why move outlet? Just learning before I hire someone to do.
@@whutchyt Proper ridgid venting is going to totally obstruct the outlet. It should be ruffly located above where the cord comes out of the microwave. It can be on either side the vent.
Do you have an example of a damper "actually works"? It seems like this is a part of the specific microwave? I can see going into HD and them saying, they come built in you don't need one. thanks
Thanks, still useful after 5 yrs. Good idea using duct tape everywhere
Just had to say glad to see your doing it yourself good for you. I know here it comes BUT You don't use flexible duct on exhaust must be rigid pipe. Using tape like you did wrong again tilting the fitting to accommodate the electrical not a good idea. 4" duct wrong again if you check your manual I'm sure they recommend 6". Do the math the square part of the fitting is most likely 10x3.25" 32.5 square inches - 4" dia area is only 12.56 square inches - 6" dia would be 28.26 square inches. Sorry but way to much wrong here to not say anything.
Good to know Larry M. I'm watching videos to learn some tips to make my microhood install easier. Do the 3 1/2" X 10" square to round adapter come in a 6: diameter? I have only been able to find 4" also. Thanks
Totally agree. I'm looking on doing something very similar and the duct is supposed to be 6". I assume he went with 4" to make sure the duct isn't visible.
Yes, does the rectangular fitting come with a 6" round outlet?
he is using an HVAC adapter. A proper over-the-range hood adapter is 7" round.
I will say, 4" is more ventilation than he had (better than recirculating)...but I agree. He cut his area for airflow by about 2/3rds when he used a 4 inch duct. And flex duct is the wrong way to go (at least it was not the flex dryer duct). Should be 7 inch round...though it seems 6 inch is getting more commonly used.
Good comments below you should first... Hire a Licensed individual who will install it as per local codes! or follow the installation manual since that is the minimum standard for all venting! Also like mentioned the flex duct shouldn't be used because its undersized, could trap grease, cannot be installed touching the wood cabinets, and cannot terminate under a wood overhang that would be considered fire hazard! Good job narrating the video Sir
At 5:48, how the hell did you manage to install the microwave WITH the flapper vent installed? When we tilted the microwave back on, there was no clearance for vent. We had to take off the vent and install it from inside the of the cabinet.
Bravo! Well done! However, switch to a rigid duct--not a flexible duct.
That semi-rigid stuff is alright. Rigid stuff is obviously the best, but the semi-rigid stuff is acceptable for short spans. It’s way better than the soft stuff that tears easily.
the only tiny change i would've implemented would be to put a bead of silicone on the inner flange portion of the outside before installing it, that way you get a full contact seal with the outer wall and partially inside the hole for a more sound mounting and sealing option but 👍 nevertheless!
absolutely agree, I just made a comment on that and also use of liquid drywall or cauck on the inside border as well, no roaches comin in from that crack
Great video. However, 4" exhaust is no good for this since your OTR Micro fan is likely 300 CFM (100 CFM/10" of cooking surface).
You connected a 3 1/4" x 10" or ~30 SQ" area to a 12 SQ" vent.
What should be connected ?
@@oscarochoarealtor Given the fact that the opening on top of the microwave is 3.25" * 10" (32.5 SQ"), just use the formula for area of circle: A = pi*r^2. With that you get a minimum diameter of just under 6.5".
However I've seen most people say that 6" is sufficient. I think this is because the 32.5 SQ" opening on top of the microwave isn't all being used, rather just two smaller openings that the fan blows air through.
Thanks for making video. It's great to be able to wathc someone else do it. Nice job with the tape. You took more time than I think the average contractor would have.
However, I don't think that flex vent pipe is allowed per any code within the United States - covered by the National Building Code.
Only rigid galvanized pipe is allowed for kitchen exhaust.
My vent fans turn on when I’m just using the microwave. For example put a glass of water inside for 30 seconds. When I press start I can hear the fan up top. Is this normal?
People have pointed out the flex is illegal (and extremely dangerous), but it looks like you're working with 4 inch duct as well. 300 cfm, typical of a microwave, is the upper limit of 4 inch duct. Some laws put 300cfm above the upper limit. You're going to have a LOT of grease buildup in there, which WILL start a fire. Your flex duct is also on the outside of the boot so as the grease drips down, it'll pour out the sides into your cupboard, adding fuel to the fire.
400 cfm is the upper limit of 4" duct, not 300. a 30" stove would be 100cfm for ever 10". So 300cfm is needed. His 4" pipe handles 400 cfm which is fine. He should replace the flex but many people use this. Even pro's from the range to the upper wall vent.
thanks, man that helped. already have ducts in place removing old hood putting in a microwave with fan.
Thanks for the video. I am about to do the same thing, though I am fortunate that I can go right through cabinet since it is an outside wall. Strangely I asked at both Lowe's and Home Depot on what to buy and I got no help. I even asked if the register boot would work and the guy at HD said no and gave me a number of an air conditioning place to "build a box" in my cabinet (that I would then have to somehow connect to outside).
A register box would also suffice. Any duct housing should work really.
Just need to find the right size to accommodate your setup. Building a
box is really just that. They would make a metal box to sit in the
cabinet to catch the air and and exhaust it. HD or Lowes offers enough
options to find something that would do the same job.
What A Dum Thing To Do. You Should Have Simply Installed An Exhaust Fan In The Ceiling, So That You Could Keep Your Cabinet Space, And Not Have An Unsightly Hose Showing. You Could Then Use Your Microwave Oven With The Steel Filters To Trap The Grease. Go To Amazon.Com, And Order The Kitchen Exhaust Fan By: Broan-NuTone 8210 8 Vertical Discharge and 7-Inch Round Duct Ceiling Fan, 210CFM.
The power of modern technology!!! First off, thanks to the creator of this video. This was published 6 years ago and it is still benefiting people to this very day, despite what appears to be some mistakes installation.
Secondly, thanks to all the people in the comments ( some I assume are professionals in the field) who gave the much needed corrections on the installation. For me, one of the reasons I used to be doubtful about trying to do projects like this is because of fear of safety violations that could hurt me or my family.
However, with all of the comments and many people saying the same thing about the correct material to use, ai feel confident that I can complete this project.
Thanks to all.
Johnstone and other companies sell a Boot Center end Part #M80-395 MFG# P17C-484 Brand Snappy, No way would I put the boot in front of the receptacle.
Great video although, microwave exhausts aren't made to deal with much backpressure. You should use a 6in pipe, minimum..Also, flex duct in a big no no... All the ridges will catch grease and it doesn't pass code. You need to use solid duct for kitchen exhausts.
omgosh, use a long bit to go all the way through the wall to the outside as a pilot so you know it's all lined up. Also that foil tape feels so strong, but in 2 days it can fall off, iknow it seems crazy. use shurtape 181a-p/181b-fx.
This video is very helpful thank you for that I’m just unable to find the little flap thing that covers the fan on top of the microwave any advice on a local store I can find that probably? And what exactly is it called I’ve been trying to find it online but can’t find it anywhere? Could you maybe help me with a link on Amazon or Home Depot or from where you week it from I need it to be shipped a little quicker or to find it local anywhere maybe at lowes or somewhere that would be even easier.
I have the exact same microwave as you just a tiny bit different if that helps. It’s 30in in size and has similar functions and looks almost exactly the same as yours.
You mean the damper?
Nice video but should have used 90s and rigid duct, it's just as easy to work with as flex duct. This stuff is the worst for dryer vents, if you use smooth wall rigid duct you will almost never have to clean it out.
Very dangerous setup with the flex duct. Those accumulate grease overtime and if you value life, you shouldn't install one in the kitchen as it doesn't meet code. Second, 4'' is too small for you
I’ve seen this reply a few times but no one says what the issue is? I guess a massive grease accumulation can make the fan work harder and louder?
THERE IS GOOD REASON WHY THEY SELL FLAT PLUG WIRES
Yes, a 90 degree (L shaped) plug can replace the straight plug on the AC cord. It might allow vertical mounting of the duct.
you could really should remove everything that you installed... and you never should of moved that range... that uncovered power source must be moved to start with it is easy to do... and 6'' smooth venting is a must, that dryer 4'' venting will get lots of grease in it and will catch fire believe me........ you can go out that same wall... also many of these ovens only have 2 fasteners on top i do install of these ovens in san diego many Hundreds of them for 6 years now...
@@tannervoss1669 From sun reys it's hot in San Diego
pretty sure those filters will capture most of the grease not to mention the grease will always be INSIDE the microwave assembly anyways
I think what you are referring to is for exhaust fans specifically not so much microwaves with exhaust fans
Nice, very helpful video! whats the name of that stud finder? lol 9yearslater🤔
Is there something behind the wall the microwave sits on? Is that why you didn’t just vent out that wall?
Just to make sure, with roof venting installed, no air should come out at the front of the microwave, right?
Nice video and thanks for the time and sharing.
One thing though...I do believe that you should only use 6 " duct for your Range Hood/MWave vent pipe. I recently did a similar project and 'tried hard' to go with 4", but every online resource I visited or Pro I spoke to me tried to veer me away from that. I eventually used to 6". Same principle except that the outside vent caps are HUGE.
My understanding is that 4" is used for dryers, 6" for ranges.
+Kaj Alano Thanks for your feedback! While I do agree that a 6" duct would be ideal to move the air, it is indeed quite large. I created a soffit above the cabinets and if I were to have done a 6" duct it would have been too big for what I had intended. The microwave still does a really good job at removing the air and that the 4" duct is handling it well.
;
The homeowner installation is strong with this one hero jobs
i have a question. i successfully installed the fan and have used it for 2 weeks. But it seems like all the smoke/smell from cooking is not completely vented out and we can still smell the smoke/cooking flavors. Anyone has any ideas?
+Trang Ta A microwave vent will not eliminate all smoke/smell. It does not provide enough coverage over the stove. This is normal.
Late to the party... I plan on installing an in-line duct fan (such as Fantech) near the end of the 6 inch duct to facilitate cfm. The benefits are in line fans are super quiet and powerful.
Before installing microwave the vent on the micro is adjustable to recirc back into room from front of micro. Make sure it is flipped to blow out top
We just watched this video and it helped us a lot. Thank you!🌸
Seriously your video could contribute to someone’s home burning down. Please take down
Checking the studs before drilling a hole through the wall is very appreciated!
Wondering why you went on the side all the way down instead the other wall right on the back of microwave? Do you have another video that cover (hide) your duct work. It was very informative video. Keep up the good work. Thanks
👏🏼👏🏼💪🏼👍🏼🍻
I did the same install at first with the recirculating vent and now our new white cabinets are getting grease stains on them and the ceiling.
Thank you so much I never thought or bothered looking at how to change the roller to face it going up. 🤦🏻♂️ and I connected to exhaust ducting.
So this weekend I’m taking it down and turning the roller.
💪🏼😁🤣 🍻
Thanks so much for this step by step video.
From Los Angeles Southern California 🙏🏼✌🏼😁
Good Video, I would have used a dryer clamp on it to tighten. And also would have put a cover plate on that outlet. Furthermore a flat plug extension adapter would have worked for behind the vent. Good Job....
Sorry very bad video several things not per code and several things could be a fire hazard. 🔥
🚨This video should be removed 🚨
Good video with a couple of issues. The electrical outlet should have been moved. No sense cutting a corner here as it may lead to issues with adapter becoming loose later. Also hard pipe duct is to be used. The flex duct is not acceptable. Cutting corners always results in later re-do's.
J Dowd flex duct is acceptable , it can handle the heat. Not sure what you are speaking of but I have been a service tech for 25 years That vent is rated for gas dryers too
@@ticklemewilly flex duct can handle heat no problem, but the ridges reduce your airflow by up to 50% and can accumulate moisture. It is highly discouraged by everyone I have talked to. If you have been in service for 25 years, then you probably are using information from 25 years ago.
@@WrestlerMonkey123 Agreed. Flex duct should not be used for any application dealing with heat transfer.
@@WrestlerMonkey123 Not to mention grease will build p inside the ridges and become a fire hazard.
@@ticklemewilly its it's not the heat the oroblem but the grease from the food.
you have stucco I have brick. is there a brick saw that won't mess up my mortar? snug or not I'd mix up some cement(or stucco) to fill in the gaps outside. here anyway, we have damned cold winters and only way I could mount is outside the north wall. in addition to the soffit you can partition off the inside of the cabinet with double or triple ply corrugated cardboard(cheap paint it white)and still get your cereal boxes in there without bashing the ducting around(things get hectic in the morning with breakfast boxes here anyway :) my old appt I had one of the exterior ducting pipes and it got pinged alot with metal cans mostly those grits, oatmeals and coffee cans. That storage space is still good though.
I need to do something like this. Because the mofo who i stalled the exhaust vent made something so now the vent goes to an aluminum duct up to the attic and all the freaking hot ari is leaking unto the house making my ac keep going to keeep cooling the installer mistake, mi e as well ill block the exhaust hole and leave it like you had it on your video.
Also that plug needs to be insulated so the heat from the wall wont go inside..
Hi Mitch. I like to say thank you. this is exactly what im looking for...... However, up to the point of tubing it out side. I will tube it up to the attic and possibly outside somehow. Im just wondering why did you have to remove the range? I guess it was in your way? Anywho, thank you for the VD. i wasnt so sure what to do with my microwave. Fortunately we have the same one! haha
So I will be on this project soon!
+SoundsRight Thanks! Glad you find the video useful! I removed the range so that it was easier to work. Good luck!
Not great covering the outlet. Not code compliance. I could write you this on a Home inspection. Next time call an electrician before
😂
wow@ this guy did it him self great job. I was just thinking how to do something like this. now I know thank you
Don’t ever use flexible duct, or semi-rigid ducting for this application. Always use rigid, galvanized steel ductwork.
Ey AMIGO today 6-26-2021 remodeling my kitchen install a new microwave l don't know how install a exhaust duct but learn w your video .!!!! Thank you so much love your explanation easy instructions and very helpful video 👍👍👍👍👍👍👍
Moving the electrical outlet over would have been a good idea.
I noticed someone else said same. I have to get an electrician to put in an outlet in cupboard once I buy mine. Why move it may I ask? And IF I was getting someone to do duct/vent up through attic and roof does it need to be moved too? Thank u just learning
This is the best method of teaching.⭐️⭐️⭐️⭐️⭐️👍
And 4"" duct CANNOT BE USED ever no way no how,It will not have the suction required and would never pass code inspection, and now its a fire trap with a flex line, grease gets trapped in the grooves, hard vent is needed
Recirculating fan = cooking smells in your house
How are you going to unplug this setup with plug right in the middle of duct? Not done correctly. Never use flex duct for this. This guy never did this correctly.
My duct is already there, and the microwave is just below the duct. They have a 1/2 inch gap between where the microwave fan outlet is supposed to meet the duct. What can I do to seal it properly?
is flex duct allowed by code ? or is supposed be rigid metal?
Thank you for making this video. You saved me a $100 service call to an HVAC specialist.
Only $100? Honestly I would have just paid the money and saved myself all that hassle as a homeowner.
Feo el trabajo se ve el ducto por arriba del gabinete mal hecho
This install is bad/wrong for so many reasons...............
What’re the reasons?
why
Many viewers have correctly noted that the electrical arrangement is very wrong! Missing cover and electrical cord in direct contact with a metal duct that will vent hot cooking air. Brilliant work! The cord may melt or the vibration will wear the insulation off! Shame on you. Move the outlet first.
I never understood why this procedure is called installing "an exhaust fan with hood for your microwave". A hood for an exhaust is something made to catch the air from whatever area you're trying to exhaust. In the case of a microwave, itself is the "hood". The ducting consists of a transition piece from the microwave to whatever duct you are using to vent the air outside.
This is not a commercial job so duct that he used is fine. Not much grease should be getting in the vent because of the grease filters on the microwave should catch most of it
HI. Hoping someone can answer questions. A store just replaced a hood vented microwave with a new one for me. When running, should there be any air coming from the microwave into the kitchen? Also, any way to fix the damper that clanks open / close every time either the fan or the microwave is used?
get a 90 degree extension cord and use that as a plug and it'll sit flatter lol
I miss place the microwave adapter with flapper. Where can I buy it. Is the another name for that
Same. Did you end up replacing it?
Hi Leather Man not sure if you have a Home Depot in your area. please see the attached link m.homedepot.com/b/Heating-Venting-Cooling-HVAC-Parts-Accessories-Ducting-Venting-In-Wall-Duct-System-Boots/N-5yc1vZc5hr they should have 6" good luck!
why they designed it circulated ? Just wasting electricity ?
Did you try opening the damper inside the duct adapter? Usually they barely open because of the steep angle of the adapter.
Great video. I live in a apartment building. Can I vent out into the bathroom exhaust duct?
No
No way. Call landlord
This is wrong you should not miss lead people into doing it wrong!!! duct tape hardens and fails use foil duct tape its rated for this inst.
Does the adapter come with microwave ?
Only use UL approved foil tape. It's printed on the tape. Also check your local code regarding how close to a window/door soffit your exhaust should be.
HOw about sealing the little crack between tubing and the wall to prevent insects and also better insulation, Cauck or some potty or...
at 5:55, you said you want to seal with tape to ensure no air flow outside of the area, and that all air goes straight into duct. what happens if there isn't a good seal, and i feel air coming out of microwave vent even though a duct was installed. my handy man didn't do a good job.
You are not meeting building code with your install. Move the Plug first then install vent.. you can not do what you did very bad idea!!
I agree it should not have been done that way, but what code is it not meeting?
Brian Look also microwave only has two screws to the cabinet it needs three, I install these and they all come with three screws and three nuts.
Edgar Bravo I have a whirlpool gold and it only secures with 2 screws and mounting bracket. each brand and model is different
This is a false statement, not all microwaves have three mounting bolts. For example www.lg.com/us/support-product/lg-LMHM2237BD#manuals
Who give a fuck w meet the code that's bs
It is good video . Where can I get adapter with flappers. What size is the flex pipe 4” or 6”.?
hi Thanks for the video ..it is really useful. I have a similar situation and have a soffit like yours and probably has to go with 4 inch solution vs 6 inch to hide the duct. I have a question: How do you know where exactly to drill from the outside that fit the hole on the inside? And what type of saw that could be used to make hole from the outside? Cheers, Danny
Thanks for watching! The easiest way is to drill a pilot hole from the inside to the outside and then measure accordingly.
I used a jigsaw. It would be easier to use a hole saw but they're not cheap.
The way i've done it is outline your circle on the inside wall. Find the exact center and drill your pilot hole all the way through to the outside(you might need a long bit). Now from the outside using a hole saw bit thats the diameter of your drawn circle make your hole. There is a center bit that sticks out past the circular teeth. Stick that into the pilot hole. You should cut directly onto your inside line.
This is a great idea. I was thinking about running my duct through the roof since my stove is not sitting on an outside wall but this is a way better idea and that hole that you cut with a saw is pretty damn good for being cut with a saw!
at first I was worried how this was going to turn out? but you did. ..
not bad. ..
very good. I will try this myself when I get the energy and will probably use 4" solid duct across the top rear of cabinets, hiding it as much as possible, through a small closet and out. A longer path than yours. I may try to put in an additional exhaust fan at the outlet. Another option might be to go straight up, into the ceiling, then 90 degrees back out between the joists in the ceiling and out. I'm afraid though there might be electrical work there from the kitchen lights.
I have almost the same setup but will be using solid tube instead of flex. I read many places that 4" carries 400CFM which is more than enough for this 300 CFM microwave. So many will say you MUST have 6" but this is overkill most of the time. The formula I read was 100 CFM for every 10" of stove size. Mine is 30 so I would only need 300CFM. 4" pipe is sufficient.
to know where to make the hold outsie just from inside drill a small hole to outside on the center of the hole so you will know where to cut outside ! your installation is ok but can be a lot better when you make this horrible cheap metal pipe not show at all , cover the top side with wood of the same color or something else but it looks bad
First of all thanks for the video. EVERYBODY should vent their microwaves outside. Those recirculating things are just dumb. Second, I know rigid piping is the proper way to do this but not everybody has the coin and/or pipe fitting experience. A legit pair of tin snips is around $35. I've used this flexible dryer duct on this very same project in the past and just changed it out every couple of years once I felt it was nasty enough inside. Compare the flexible duct job here to the chicken coups that people in 3rd world countries call home. LOL. Works good enough bruh.
Well, I guess I was dumb for installing an inside vent microwave. On the other hand, the airflow is faster than outside vent, and adequate for removing smoke from cooktop. It was much, much easier to install. Perhaps you are the one who is dumber (or perhaps dumbest).
I need to do this 😫 my fire alarms go off
What are you adding to cover the duct?
Why didn’t you run it through the back of the cabinet, that looks tacky