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Will a Dishwasher Work Without Hot Water?

Hugo Totty is passionate about clothing and lifestyle. I love sharing my experiences about different fashion aspects that I've picked up.


When it comes to buying household appliances, the sheer volume of options on the market today can make choosing tough. The most important thing to think about when buying any home appliance is how much you need it in the first place.

If you are someone who is new to the idea of buying household appliances, then you might want to think about buying a dishwasher. These are very useful tools that can save you hours per week standing at the sink washing up your old cutlery, dishes and the like. However, read into dishwashers and one thing you will see is the requirement for hot water.

Most dishwashers today ask that you make sure you have running hot water before you install and use it. Is this always the case, though? Or is it possible for you to use your dishwasher with just cold water? Will a dishwasher work without hot water?

Let’s take a closer look so that you know what you are buying. While this might not seem very important, it is an essential part of making sure you can get the most out of your dishwasher without any damage.

Why Does My Dishwasher Use Hot Water?

You might wonder why this is such a big deal. Many people clean their dishes with just cold water after all, right?

Well, yes. But the problem is that if you use cold water to clean your cutlery and dishes then you will not get the best cleaning result. Hot water plays an important role in making sure that things like residue and gunk come off your dishes. Things such as food scrapping, dish soap, and other debris such as sauce and stains will not lift very easily if you just use cold water.

Don’t believe us? Try and run your next set of manual dishes in only cold water. The washing up liquid becomes less effective, and the dishes are very much likely to be left with stains and other debris still attached. No matter how hard you scrub or chip away at the debris, hot water will always make sure that it comes off faster.

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So, if you are thinking of using cold water for your dishwasher then we advise against it. Sure, you can in some cases, as is mentioned below, but it is absolutely not the optimum choice.

Your Dishwasher Will Have Its Own Properties

The main thing to think about when using your dishwasher is making sure that you understand its operation. For example, some dishwashers will need to have hot water piped in or included to make the dishwasher work. Others, though, are able to heat up any cold water that is put into the dishwasher itself. This is important to read into, as it will play a big role in how you go about configuring and then eventually using that dishwasher in the first place.

Take some time to look into the brand and the style of the dishwasher before you hit the ‘Buy Now’ button or commit to buying in-store. Most dishwashers today will use hot water from a hot water valve, that is typically kept under the sink in your home. This is going to supply hot water to the dishwasher so that it can then begin operations.

As noted, though, others will heat the water that comes from the cold water valve. You need to do some reading into the process to make sure that you know what you are buying. Installing your dishwasher incorrectly could lead to problems and damage, and even void your warranty, so make sure you use the water setup that is being asked of you by the dishwasher manufacturer.

The Need for Hot Water Is Real

So, the first thing to note is that while you can run your dishwasher without hot water, it is not really advised. It tends to be something that you can do, but it depends on the dishwasher itself. For example, as we have mentioned above, some dishwashers have different properties when it comes to their water usage. Some need to have hot water piped in, while others can heat up their own hot water to be used.

If you are using the latter, then you could go ahead and use cold water instead. Just about any dishwasher will come with a manual to tell you whether or not you can safely use it with cold water or whether you need to be using hot water.

Hot water is a very important part of using a dishwasher. It will play a big part in making sure that you get the right kind of performance from the dishwasher, and that it does all of the cleanings that it is supposed to. So, do not ignore the importance of knowing whether or not your dishwasher can use hot water – simply check the manual for your chosen model.

This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.

© 2022 Hugo Totty

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