No Stupid Questions
No such thing. Ask away!
!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.
The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:
Rules (interactive)
Rule 1- All posts must be legitimate questions. All post titles must include a question.
All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.
Rule 2- Your question subject cannot be illegal or NSFW material.
Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.
Rule 3- Do not seek mental, medical and professional help here.
Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.
Rule 4- No self promotion or upvote-farming of any kind.
That's it.
Rule 5- No baiting or sealioning or promoting an agenda.
Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.
Rule 6- Regarding META posts and joke questions.
Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.
On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.
If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.
Rule 7- You can't intentionally annoy, mock, or harass other members.
If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.
Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.
Rule 8- All comments should try to stay relevant to their parent content.
Rule 9- Reposts from other platforms are not allowed.
Let everyone have their own content.
Rule 10- Majority of bots aren't allowed to participate here. This includes using AI responses and summaries.
Credits
Our breathtaking icon was bestowed upon us by @Cevilia!
The greatest banner of all time: by @TheOneWithTheHair!
view the rest of the comments
They have 120 volt electricity, it can't heat quickly enough, so the wash cycle will begin with less than optimal temperature and take a while to get to sanitizing temperature.
So they feed it water from the hot water tank, which isn't hot enough usually but the heating element can get it up to temp much faster at 120v.
Many modern dishwashers only have a cold water inlet so it literally does not get water from the hot water tank.
120V really doesn’t matter that much as they are commonly on their own 20A breaker. At 1500W of power it can heat 1.5L of water from 60F to 168F in 1 minute.
Where are you getting your information? Can you find an example of a dishwasher where the installation manual says to use cold water?
And the claim that 120v doesn't matter is baseless.
Lol no it can't, are you nuts? That's physically impossible and mathematically incorrect by a factor of more than 4.
My information is based on installing 3 dishwashers in the US that all said to either connect to cold water or give an option for cold water or hot water
Voltage doesn’t matter for heating what matters is overall power. 1500W at 120V and 1500W at 450V both heat at the same rate. The advantage of higher voltage home systems is they usually allow higher power since current is generally the limiting factor but they make higher current breakers for 120V
I was off on my conversions and did calories instead of joules. Either way it takes 4 minutes to get from 60 to 160 which is still trivial on a multi hour cycle
Here is one that allows either connection but emphasizes increased efficiency with hooking up to cold water. I admitted I was wrong on my conversions will you admit you are wrong that they have to hook up to hot water?
https://us.mieleusa.com/MieleMedia/docs/operatinginstructions/Old-Archive/Residential/Dishwashers/English_manuals/Installation_Instructions/Full_Size_install.pdf
"For fastest possible wash times, with slightly higher energy consumption, connect the dishwasher to a hot water source. Hot water supply specifications: Recommended temperature: 120 °F (49 °C), max 140.
I never said that.
So weird. You want to be right? Okay, you're right, you don't have to hookup to a hot water, it's recommended and commonly done... I don't think I claimed you have to... The reason it's recommended to hook to hot water is because it's slower at 120v. They all allow you to do whatever the hell you want, but American tap water (which doesn't sit in a rooftop tank that gets warm as it sits around, but that doesn't apply much in the northern hemisphere) is typically not ideal.
You want your dishwasher to take longer? hook it up to cold water and save some electricity, you do you.
Why would I use 1500W at 240V? My dishwasher has a 2100W heating element, which heats 40% faster, that's not negligible. You can get higher wattage models.
You installed 3 dishwashers? That doesn't make you an expert on international dishwashers, it just makes you a homeowner. Jesus, you don't have to just argue for the sake of arguing, just say "I learned something dumb today" and move on with your life.
You said "Many modern dishwashers only have a cold water inlet so it literally does not get water from the hot water tank" and then provided an example that says what I said, if you want a faster wash use hot water.
The reason most of the world uses the cold tap for dishwasher hookup is because they use a higher wattage heating element, which they can operate safely because they use 220V power. I didn't come up with the 1500W limit, you did, don't move the goal posts.