this post was submitted on 10 Jul 2024
294 points (97.7% liked)

News

23606 readers
3466 users here now

Welcome to the News community!

Rules:

1. Be civil


Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban. Do not respond to rule-breaking content; report it and move on.


2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.


Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.


3. No bots, spam or self-promotion.


Only approved bots, which follow the guidelines for bots set by the instance, are allowed.


4. Post titles should be the same as the article used as source.


Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.


5. Only recent news is allowed.


Posts must be news from the most recent 30 days.


6. All posts must be news articles.


No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.


7. No duplicate posts.


If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.


8. Misinformation is prohibited.


Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.


9. No link shorteners.


The auto mod will contact you if a link shortener is detected, please delete your post if they are right.


10. Don't copy entire article in your post body


For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.

founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 1 points 5 months ago (1 children)

Dishwashers already have heating coils and temperature sensors. It's 2024, why don't they handle that on their own?

[–] kryptonianCodeMonkey 1 points 5 months ago* (last edited 5 months ago)

If you run it correctly, with the hot water at the tao, the first cycle is only a few minutes long and the box is insulated, so there is very little heat loss. It drains all that water out after a few minutes so that all that grease and debris isn't being sprayed all over your dishes that it is trying to wash. There is no reason to add more heat to that cycle, and the heat added would be minimal since the cycle doesn't last long. The next cycle, the detergent cycle is much longer, so the water will lose heat over the duration of the cycle if not heated. That is what the heating coil is used for, to maintain the heat of the, ideally, already hot water.

Why not use the heating element one the first cycle? Energy efficiency, runtime, and equipment cost/complexity. It is a waste of energy to heat cold water when you should already have a tank full of heated water somewhere in your house with a line connected to the dishwasher. But not only that, heating water takes a considerable amount of time. To heat a gallon of water by 80 degrees Fahrenheit (average cold tap is 60 degrees, vs 140 in water heater) with a typical heating element in a dishwasher, it would take just under 15 minutes of continuous heating to get it to temp, and you would need to do that before you started cleaning if you want it to matter. And every cycle after that will need to heat the water from cold too. With 4 cycles to a normal wash (if I'm not mistaken), that's an extra hour to every load of dishes. Then on top of that, you need a thermostat that's currently unnecessary, to let the dishwasher know when it's reached temp. The temperature sensor that is currently in your dishwasher is dedicated overheat sensor to make sure the system doesn't get too hot and become a safety hazard. It's a simple kill switch, too simple to serve both purposes. So you would need both sensors, not just the one, or a more complicated and expensive sensor.

It's not like they couldn't just use the heating element on the initial rinse. They could. But there's no good reason to add extra time, sensors and power usage on an appliance when you already have an appliance that's already done all of that for you. You just have to clear the line of the unheated water. It will save to time and money.