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Kitchen appliance outlet height

Reit38

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We are in the process if remodeling our kitchen. I need to install a dishwasher and also a garbage disposal as it previously didn't have either.

Can I use the same outlet for both of these

Also at What height would I install the outlets for each.
 
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sparky 1971

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I use the same outlet for both, put it under the sink and make it split wired so half of it is switched for the disposal and the other half is always hot for the dishwasher. Or, you can leave both sides hot all the time and use an air switch for the disposal, that's what my set up currently is since the sink is in an island and there's no place to put a switch. As far as height, there isn't one. Between the water lines, drain line, and sink bowl, put it where it will fit. I like to use a 4X4 box with a bracket and a single gang 1-1/4" raised mud ring, that way the face of the box will be a lot closer to the face of the cabinet back. I also use the same box set up for the above the range hood or microwave.


 

larry4406

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Attached is a picture from our recent kitchen renovation. We installed two dishwashers and a disposal.

As stated by sparky 1971, put the outlets inside the cabinet rear wall and out of the way of the plumbing.

The manuals for our dishwashers specified that the units were to be each on their own dedicated circuit. Same for the disposal. Lastly, in my area, these devices are required to be GFCI protected now and accessible (we don't direct wire dishwashers anymore for this reason). We used an air switch for our disposal.


1678278022167.png
 

Terry D

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Another thing to consider is if you need to GFCI protect the dishwasher. It is required in my area. If you put the GFCI under the cabinet, you would have to use the air switch since a GFCI cant be spit wired. If you put a GFCI breaker in the panel, then you could split wire the receptacle or use an air switch. The disposal also would be GFCI protected, which is fine. I'm a fan of air switches. Either way, check your local codes, it might not be necessary to do all of that. there are a lot of dishwasher installed without GFCI protection.
 

sparky 1971

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I'm three weeks away from my 29 year anniversary of being in the trade and I've never used separate circuits for the dishwasher and disposal. Ever. That includes the three different houses I've lived in, one of which I built. I don't see them ever being used at the same time, the disposal runs while the plates are getting cleared off and the dishwasher gets loaded then the dishwasher runs. I've also never had GFCI protection for my own dishwashers. It wasn't required when the wiring was installed, and when I remodeled the current kitchen last summer, I didn't get a permit so the wasn't anyone to tell me I had to.

As far as doing it by the book, on the rare occasion that I do a kitchen remodel for someone else, I use an AFCI/GFCI breaker for the dishwasher/disposal circuit. Yes, they are supposed to have the dreaded AFCI protection as well as the GFCI.
 

sparky 1971

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Attached is a picture from our recent kitchen renovation. We installed two dishwashers and a disposal.

As stated by sparky 1971, put the outlets inside the cabinet rear wall and out of the way of the plumbing.

The manuals for our dishwashers specified that the units were to be each on their own dedicated circuit. Same for the disposal. Lastly, in my area, these devices are required to be GFCI protected now and accessible (we don't direct wire dishwashers anymore for this reason). We used an air switch for our disposal.


1678278022167.png
That picture right there is the perfect example of why I use the 1-1/4" mud rings and get the boxes sticking out of the wall.
 

larry4406

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I'm three weeks away from my 29 year anniversary of being in the trade and I've never used separate circuits for the dishwasher and disposal. Ever. That includes the three different houses I've lived in, one of which I built. I don't see them ever being used at the same time, the disposal runs while the plates are getting cleared off and the dishwasher gets loaded then the dishwasher runs. I've also never had GFCI protection for my own dishwashers. It wasn't required when the wiring was installed, and when I remodeled the current kitchen last summer, I didn't get a permit so the wasn't anyone to tell me I had to.

As far as doing it by the book, on the rare occasion that I do a kitchen remodel for someone else, I use an AFCI/GFCI breaker for the dishwasher/disposal circuit. Yes, they are supposed to have the dreaded AFCI protection as well as the GFCI.
So when the manufacturer of the appliance says to put the appliance on a separate circuit you just choose to ignore it? :dunno:
 

sparky 1971

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So when the manufacturer of the appliance says to put the appliance on a separate circuit you just choose to ignore it? :dunno:
I have never seen a spec that told me it was necessary. If I were doing a kitchen and someone told me that the dishwasher and or disposal that were going to be installed required a dedicated circuit I would do it. Every single kitchen I've been a part of had a print that showed the dishwasher next to the sink. l install a 20 amp circuit for both the dishwasher and disposal. The end. If a dishwasher happened to get installed that required a dedicated circuit, I never heard about any problems. There probably weren't
any since it's extremely rare that both run at the same time.
 

sparky 1971

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Electrician uses these by Arlington at the final
1678287005139.png
Those are fine but one of the reasons I like the deep mud rings is to make sure the trim carpenters cut out the entire hole for the box. I've had my share where they were off by 1/2 the box and left it that way and a couple where they drilled a hole in the center of the box and pulled the wires out. Fun times. Now, if they don't cut out the entire thing, the mud ring will hit the cabinet and it won't go back to the wall. There was one back in the 90's when the drywallers covered the box so the cabinet didn't get cut out at all. Then the plumbers showed up and put the sink in before I got there. The whole thing had to come apart and the sink base pulled so the receptacle could be found. After that I started nailing the boxes on with the face sticking out as far as possible. It was when I went out on my own in 2010 that I started using the mud rings.
 
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sparky 1971

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Remodel is a great time to get rid of the disposal altogether. Way less problems when you don't send food down the drain, nothing to break or clean and more room undet the sink
I tried to tell that to my wife when she insisted our house get a disposal. It was built in 1961 and the kitchen was part of a 1988 addition and was just fine without. I dump a giant pot of boiling water down the sink every weekend now. I don't know if it helps, but I feel better.
 
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larry4406

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My wife insisted we add the garbage disposals.

I keep telling her and kids that its for minor incidentals only - scrape your plate first. Just because we can doesn't mean we should.
 

mike93lx

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I tried to tell that to my wife when she insisted our house get a disposal. It was built in 1961 and the kitchen was part of a 1988 addition and was just fine without. I dump a giant pot of boiling water down the sink every weekend now. I don't know if it helps, but I feel better.
Feeling better is an important part of life.

It's been easier in my house. Last two house are septic, so no disposal use. Helped that both had very poor condition units when we bought them, so out they came and I don't see ever putting one in, septic or sewer.
 

sparky 1971

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Feeling better is an important part of life.

It's been easier in my house. Last two house are septic, so no disposal use. Helped that both had very poor condition units when we bought them, so out they came and I don't see ever putting one in, septic or sewer.
I'm on septic now. The first thing I had done was put in a new tank and coco filter. I have it pumped every five years whether it needs it or not.
 

dcg9381

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Remodel is a great time to get rid of the disposal altogether. Way less problems when you don't send food down the drain, nothing to break or clean and more room undet the sink
This works if you or your spouse are the only people who use your kitchen. I've got a septic tank and I still installed garbage disposals. We've got kids (who are never 100% reliable) and sometimes other people cook in our kitchen.

The shop is on a simple foundation graywater distribution system. No garbage disposal down there, but we have to pay attention to what goes on in the sink.
 

mike93lx

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This works if you or your spouse are the only people who use your kitchen. I've got a septic tank and I still installed garbage disposals. We've got kids (who are never 100% reliable) and sometimes other people cook in our kitchen.

The shop is on a simple foundation graywater distribution system. No garbage disposal down there, but we have to pay attention to what goes on in the sink.
It's super easy. Keep a strainer in the sink and nothing goes down the drain.

I have young kids, so I'm not just making this up
 

sparky 1971

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It's super easy. Keep a strainer in the sink and nothing goes down the drain.

I have young kids, so I'm not just making this up
How in the blue hell are you able to keep a strainer in the sink? The most asked question by me is "Why are all the lights on in rooms that nobody is in?" followed closely by "Where's the sink strainer? There's all kinds of **** stuck in the drain." It's usually in the dishwasher, but I've found it sitting on the counter more than a few times.
 

mike93lx

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How in the blue hell are you able to keep a strainer in the sink? The most asked question by me is "Why are all the lights on in rooms that nobody is in?" followed closely by "Where's the sink strainer? There's all kinds of **** stuck in the drain." It's usually in the dishwasher, but I've found it sitting on the counter more than a few times.
Lol. Somehow, it just isn't an issue in my house. Maybe it's the type we use? They don't get clogged up, so they don't have to get removed when there is stuff in them. One in each bowl. The kids know to scrape food into the trash can, so not a lot goes into the sink. I'm worse than they are, but I do the dishes.KSS682_Out_of_the_box.jpg
 

Norcal

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I have never wired the DW, & disposal on the same circuit but cannot see the harm in doing so, the kitchen pig is only going to run for a short period of time, I ran a multiwire circuit for mine but because the 1957 septic system is a few years older then me, not getting a disposal.

As to strainers, my sink has two with stainless steel mesh & they stay in the sink drain except when being cleaned out & rinsed + being run through the DW from time to time.
 

jar944

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I love garbage disposals, I have one in both kitchens. Technically I'm supposed to pump out the septic every 3 years so might as well get my money's worth.

FWIW and for some unexplainable reason my DW is on a dedicated 20a line (but my fridge shares the 15a kitchen receptacle circuit) I ended up putting the dw outlet in the recessed toe kick and the disposal outlet under the sink like you would expect.

Screenshot_20230310_093014_Gallery.jpgScreenshot_20230310_084445_Gallery.jpgScreenshot_20230310_083553_Gallery.jpg
 
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