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Post by gale w on Mar 21, 2019 4:36:28 GMT
I don't but if I'm rinsing dishes I use hot and our sink/dishwasher are right above where our water heater is in the basement so it gets hot within seconds.
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milocat
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Post by milocat on Mar 21, 2019 4:52:45 GMT
The plumber who installed ours said that because the new ones use so little water and the kitchen is so far away from the hot water tank that I should run the faucet until it's hot or the dishwasher will be filling up with cold water.
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paget
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Post by paget on Mar 21, 2019 5:02:36 GMT
I’ve never done this and never heard of anyone else doing it.
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MsKnit
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Post by MsKnit on Mar 21, 2019 6:35:42 GMT
I do. If the hot water tank has had time to heat fully, the dishwasher runs immediately.
When my son starts the dishwasher, he doesn’t. The machine takes time to heat the water. It’s annoying.
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Post by Katiepotatie on Mar 21, 2019 6:53:06 GMT
I just did for the first time ever...because of this thread!
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Post by trixiecat on Mar 21, 2019 11:07:09 GMT
I have always been told to run hot water first and have always done it.
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Post by crafty on Mar 21, 2019 11:18:41 GMT
I do but not for 3-5 minutes. Just until the water is steamy. We were told by the installer once that it was a good idea so that the first water that goes in is hot.
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maryannscraps
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Post by maryannscraps on Mar 21, 2019 11:27:07 GMT
Yes, but it only takes a minute or so for my water to heat. I was having problems with the dishes getting clean when the dishwasher soap formulations were changed a few years ago (to remove phosphates.) That was one of the suggestions, and it helped immensely. I have an older Bosch.
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Deleted
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Post by Deleted on Mar 21, 2019 11:29:19 GMT
Your clothes don't need to have raw food traces etc washed from them presumably. I certainly don't want my dishes washed in cold water! The steam that comes out when I open the dishwasher is very hot - I don't need sterile but I want good hot water and 'suds' on my food equipment. Well it's a good thing then that my dishwasher is hot and steamy even when I open it to unload it even if I haven't run hot water in the sink before. It does not have a heater for drying and it does have a sanitize feature so I assume that it does a fine job heating the water sufficiently. No one has died at my house and I'm pretty sure that dishes that aren't washed in scalding hot water aren't the most unhygienic thing my kids have put in their mouths over the course of their lives. I don't think you understand how a Bosch dishwasher works. Bosch dishwasher don't have a heating element but that doesn't mean they wash your dishes in cold water. The machine has a heating chamber that has heating coils in it that heats the water to a very high degree very quickly, as it passes through the chamber. It also doesn't have a drying heat element but uses a condenser system to dry the dishes recycling the water used on the last rinse. Bosch dishwashers are probably the highest energy efficient dishwashers out there. Far more efficient and energy/water conservation than running hot water from your normal system before you start using it and much cheaper on your energy bills. My Bosch dishwasher is only connected to a cold tap and works very efficiently and gets very hot. To the OP - you are using more energy and wasting water running your hot water. Heating the replacement water in your system after you've used the hot water will cost far more than if you allow your dishwasher chamber to heat the cold water it uses.
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SweetieBsMom
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Post by SweetieBsMom on Mar 21, 2019 12:27:15 GMT
Always
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janeinbama
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Post by janeinbama on Mar 21, 2019 12:43:31 GMT
We moved recently and the manual of dishwasher (3 years old) and it says to run hot water prior to starting cycle.
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Post by mrst on Mar 21, 2019 12:43:48 GMT
I thought all dishwashers were cold fill anyway. I've had 4 or 5 in the UK and Spain, and they were all cold fill only....as is my clothes washer. There used to be an exposed element in the bottom of dishwashers but it's enclosed 8n newer ones. Either way it's better to just heat the water you need 8n the machines , saving both power and water.
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Post by mikklynn on Mar 21, 2019 12:58:31 GMT
I would never bother with that. The dishwasher hearts up the water just fine on its own. It's designed to do that. It has to heat it up anyway, no way does the water get that hot just in the faucet. Pointless waste of water, I agree.
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likescarrots
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Post by likescarrots on Mar 21, 2019 13:09:26 GMT
Technically yes but only because we rinse/lightly wash the dishes in hot water before they go into the dishwasher.
But if we happen to run a load much later than we've filled, we would not do this because 1. I've never actually heard of this being a thing and 2. Our dishwasher has a heating coil so I don't really see why I would. The dishes are always piping hot when it's finished so I'm pretty convinced they have been adequately sterilized.
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Post by SweetieBugs on Mar 21, 2019 14:58:18 GMT
Well it's a good thing then that my dishwasher is hot and steamy even when I open it to unload it even if I haven't run hot water in the sink before. It does not have a heater for drying and it does have a sanitize feature so I assume that it does a fine job heating the water sufficiently. No one has died at my house and I'm pretty sure that dishes that aren't washed in scalding hot water aren't the most unhygienic thing my kids have put in their mouths over the course of their lives. I don't think you understand how a Bosch dishwasher works. Bosch dishwasher don't have a heating element but that doesn't mean they wash your dishes in cold water. The machine has a heating chamber that has heating coils in it that heats the water to a very high degree very quickly, as it passes through the chamber. It also doesn't have a drying heat element but uses a condenser system to dry the dishes recycling the water used on the last rinse. Bosch dishwashers are probably the highest energy efficient dishwashers out there. Far more efficient and energy/water conservation than running hot water from your normal system before you start using it and much cheaper on your energy bills. My Bosch dishwasher is only connected to a cold tap and works very efficiently and gets very hot. To the OP - you are using more energy and wasting water running your hot water. Heating the replacement water in your system after you've used the hot water will cost far more than if you allow your dishwasher chamber to heat the cold water it uses. This information is what my online research has yielded about the Bosch washers. Very strange because my DH swears the installer told him there is no heating system in the dishwasher. I knew this couldn't be true at all because when you open the door at the end, it is very hot and steamy inside!!!
I scoured my Bosch manual and in the troubleshooting section it does say if your dishwasher is running excessively long or not getting dishes clean, try running hot water before starting the load. Ours works fine.
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Deleted
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Post by Deleted on Mar 21, 2019 15:07:55 GMT
I don't think you understand how a Bosch dishwasher works. Bosch dishwasher don't have a heating element but that doesn't mean they wash your dishes in cold water. The machine has a heating chamber that has heating coils in it that heats the water to a very high degree very quickly, as it passes through the chamber. It also doesn't have a drying heat element but uses a condenser system to dry the dishes recycling the water used on the last rinse. Bosch dishwashers are probably the highest energy efficient dishwashers out there. Far more efficient and energy/water conservation than running hot water from your normal system before you start using it and much cheaper on your energy bills. My Bosch dishwasher is only connected to a cold tap and works very efficiently and gets very hot. To the OP - you are using more energy and wasting water running your hot water. Heating the replacement water in your system after you've used the hot water will cost far more than if you allow your dishwasher chamber to heat the cold water it uses. This information is what my online research has yielded about the Bosch washers. Very strange because my DH swears the installer told him there is no heating system in the dishwasher. I knew this couldn't be true at all because when you open the door at the end, it is very hot and steamy inside!!!
I scoured my Bosch manual and in the troubleshooting section it does say if your dishwasher is running excessively long or not getting dishes clean, try running hot water before starting the load. Ours works fine.It doesn't say that in my manual, I've just had a look at it. How strange that you have different manuals to ours.
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Rhondito
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Post by Rhondito on Mar 21, 2019 15:19:06 GMT
No, never. It's not unusual for me to open the dishwasher right after I've started it to put in a missed item and it's always already steamy inside - and my water at the sink takes a bit to warm up.
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Post by dillydally on Mar 21, 2019 15:30:34 GMT
I've heard that and sometimes I do it (if we run the washer right after rinsing/washing dishes that don't go in the washer) and sometimes I don't.
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Post by SweetieBugs on Mar 21, 2019 16:11:10 GMT
This information is what my online research has yielded about the Bosch washers. Very strange because my DH swears the installer told him there is no heating system in the dishwasher. I knew this couldn't be true at all because when you open the door at the end, it is very hot and steamy inside!!!
I scoured my Bosch manual and in the troubleshooting section it does say if your dishwasher is running excessively long or not getting dishes clean, try running hot water before starting the load. Ours works fine. It doesn't say that in my manual, I've just had a look at it. How strange that you have different manuals to ours. You can download the manual here: www.bosch-home.com/us/productslist/dishwashers/top-controls/SHX878WD5N#/Tabs=tab-3324792/
At the very top of page 37 is the troublshooting comment. The comment is for the load taking too long. I thought it said the same thing for not getting the dishes clean but it doesn't. I'm pretty comfortable that the dishwasher is getting the water hot on its own.
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Deleted
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Post by Deleted on Mar 21, 2019 16:14:48 GMT
It doesn't say that in my manual, I've just had a look at it. How strange that you have different manuals to ours. You can download the manual here: www.bosch-home.com/us/productslist/dishwashers/top-controls/SHX878WD5N#/Tabs=tab-3324792/
At the very top of page 37 is the troublshooting comment. The comment is for the load taking too long. I thought it said the same thing for not getting the dishes clean but it doesn't. I'm pretty comfortable that the dishwasher is getting the water hot on its own.There's no point in me getting it as my Bosch only has a cold water feed to it ![:)](//storage.proboards.com/5645536/images/MNrJDkDuSwqIMVw33MdD.jpg)
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Post by candleangie on Mar 21, 2019 16:26:34 GMT
I do when I remember, only because if I don’t it runs foooorrrreeeeeevvvverrrrrrrr. With five adults in the house, there’s usually the start to another load waiting to go in. Lol
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Post by SweetieBugs on Mar 21, 2019 16:54:24 GMT
I do when I remember, only because if I don’t it runs foooorrrreeeeeevvvverrrrrrrr. With five adults in the house, there’s usually the start to another load waiting to go in. Lol Can you give me an idea of what "foorreever" is like for your dishwasher? Just wondering if you are talking 70 minutes, 90 minutes or longer? I think ours runs for about 80 minutes or so.
I'm going to have to make notes for while on how long it runs each night and whether hot water was run before starting. Even so, I'm not sure that will yield any useful results because the Bosch does a small initial "rinse" to determine how dirty the dishes are and supposedly adjusts its cycle to meet the cleaning needs so each load hypothetically could take a different time.
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Post by candleangie on Mar 21, 2019 19:43:09 GMT
I honestly don’t know. It’s been years since it’s run the long way that I’ve noticed. But it was like an extra hour into the normal cycle, if I recall correctly
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Post by workingclassdog on Mar 21, 2019 19:54:38 GMT
Nope never and that would annoy me as well.. waste of water..
Edited to add, this has been interesting reading...
So I probably have the cheapest of cheap dishwashers..It was installed brand new when we built the house. We load the dishes, put the soap in and start it up. No water running. Lots of times I will open within a few minutes (probably even quicker than that) to add silverware or a glass.. and you can tell it is already getting hot. Don't all dishwashers have some kind of heating element? I have lived in over 30 different houses/apartments and basically all the dishwashers ran the same.. around the same amount of time as well, unless you change it up to a different setting. I always wash mine on the normal cycle.
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M in Carolina
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Post by M in Carolina on Mar 21, 2019 21:05:45 GMT
This information is what my online research has yielded about the Bosch washers. Very strange because my DH swears the installer told him there is no heating system in the dishwasher. I knew this couldn't be true at all because when you open the door at the end, it is very hot and steamy inside!!!
I scoured my Bosch manual and in the troubleshooting section it does say if your dishwasher is running excessively long or not getting dishes clean, try running hot water before starting the load. Ours works fine. It doesn't say that in my manual, I've just had a look at it. How strange that you have different manuals to ours. I’m pretty sure that the UK and the EU have more stringent laws about appliance efficiency and saving energy/water. Back in 2001 when I lived in Michigan friends of mine renovated their kitchen and bought a Bosch. I remember the guy friend saying several times that he wished that he could get the European models because they were more efficient. He actually called Bosch and Miele and asked if there were American models that were the same efficiency and decided on a certain Bosch model. It was a really great dishwasher. You could put really dirty dishes in it. It even had a garbage disposal in it. I had always had to rinse off my dishes, or food debris would get stuck at the bottom.
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Deleted
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Post by Deleted on Mar 21, 2019 22:37:07 GMT
It doesn't say that in my manual, I've just had a look at it. How strange that you have different manuals to ours. I’m pretty sure that the UK and the EU have more stringent laws about appliance efficiency and saving energy/water. All our appliances have to display a standard energy label and a table of information giving specified performance data. The energy label goes from A+++( most efficient) A++ A+ A then down to G. I can't ever remember seeing anything less than a B nowadays though. Dishwashers and washing machine also has a label informing you of the amount of water it uses too. How it works ... an A+ uses 10% less energy than an A. An A++ uses 20% less than the A and the A+++ uses 30%, If you had a much older appliance and it was rated a C then it's prudent to replace it really as a new appliance would save you 50% use on your energy. Our heating boilers are rated very similar.
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Post by crazy4scraps on Mar 22, 2019 0:21:43 GMT
We have a Bosch in this house and I never knew that was a thing. I don’t need to run the dishwasher every day because certain things don’t fit or have to be washed by hand anyway. If I’m rinsing off the goopy crud that would get hardened on before we run it and then turn it on, the water at the sink would be hot. Otherwise if I’m putting in the bowls and DH’s coffee mug from breakfast cereal to fill it up the following morning and turning it right on, then I don’t. No matter what, the normal cycle on that dishwasher is 120 minutes which IMO is a really long time.
I always open it up at the end of the cycle so the dishes can air dry and it’s always steamy. If I don’t prop the door on the thing open when it’s done washing I end up having to dry them all with a towel before putting them away and that’s more effort than I want to put in when I’m using a machine to wash the dishes.
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Deleted
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Post by Deleted on Mar 22, 2019 0:31:36 GMT
I always open it up at the end of the cycle so the dishes can air dry and it’s always steamy. If I don’t prop the door on the thing open when it’s done washing I end up having to dry them all with a towel before putting them away and that’s more effort than I want to put in when I’m using a machine to wash the dishes. Are you sure you're leaving it until the very end of the cycle? I've never had to dry mine with a towel, the dishwasher heat dries it all. The dishes are very warm, some might say hot to the touch when it's finished drying but the inside isn't steamy.
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Post by SweetieBugs on Mar 22, 2019 0:45:10 GMT
We have a Bosch in this house and I never knew that was a thing. I don’t need to run the dishwasher every day because certain things don’t fit or have to be washed by hand anyway. If I’m rinsing off the goopy crud that would get hardened on before we run it and then turn it on, the water at the sink would be hot. Otherwise if I’m putting in the bowls and DH’s coffee mug from breakfast cereal to fill it up the following morning and turning it right on, then I don’t. No matter what, the normal cycle on that dishwasher is 120 minutes which IMO is a really long time. I always open it up at the end of the cycle so the dishes can air dry and it’s always steamy. If I don’t prop the door on the thing open when it’s done washing I end up having to dry them all with a towel before putting them away and that’s more effort than I want to put in when I’m using a machine to wash the dishes. I agree about the part I bolded. This is our experience as well--even using the "dry" mode. We replaced an old Bosch (at least 11 to 15 years old) that broke down and after just a few days of having this new washer, wished I would have explored repairing the old one!!!!
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Post by crazy4scraps on Mar 22, 2019 1:02:36 GMT
I always open it up at the end of the cycle so the dishes can air dry and it’s always steamy. If I don’t prop the door on the thing open when it’s done washing I end up having to dry them all with a towel before putting them away and that’s more effort than I want to put in when I’m using a machine to wash the dishes. Are you sure you're leaving it until the very end of the cycle? I've never had to dry mine with a towel, the dishwasher heat dries it all. The dishes are very warm, some might say hot to the touch when it's finished drying but the inside isn't steamy. The dishwasher is totally off and not making any more noise, the timer is down to zero and nothing else is happening so I assume it’s done. If I run it after dinner and leave it closed until the next morning, every single plastic dish in there will need to be hand dried and ain’t nobody got time for that. At least by opening it up when the thing shuts off, the Corelle type dishes and ceramic mugs will completely air dry by morning and all I’ll have to dry are the wet bottoms of the plastic stuff where the water pools, ugh.
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