How to Remove the Salt Deposits on an Immersion Heating Coil?

With their long time working, immersion heating coils can accumulate salt deposits on them. If you recently noticed that their immersion heating coil also has these deposits accumulated on it and were wondering why and how to fix it, you have landed on the right page.

Taking care of your coil and removing these salt deposits is essential to ensure that your coil works efficiently for many more years. Hop on below to learn how to clean your coil and remove salt deposits, along with several other safety precautions one should consider while doing all of it.

What You Will Require to Remove Salt Deposits on an Immersion Heating Coil?

When cleaning an immersion heating coil, one should know about the right tools to remove the salt deposits and other minerals. The right kind of tools is a must because, at times, your salt deposits can be hard, which might make them difficult to remove. Some of the essential tools required to clean your immersion heating coil are:

  • Cleaning gloves – Make sure to wear gloves that protect your hand while cleaning and prevent you from getting electrocuted when you touch the immersion heating coil.
  • A bowl containing equal parts water and vinegar solution will be the main solution that would help loosen the salt deposits from your immersion heater.
  • Sodium carbonate – Highly effective in helping dissolve the minerals and salt deposits accumulated on your rod.
  • A brush or Cloth – To scrub off the salt deposits from the immersion heater.
  • Wiping Cloth – This will help remove the excess water and remaining salt deposits present on your immersion heater.

Why Do Salt Deposits Accumulate on an Immersion Heating Coil?

As soon as you have noticed the salt deposits accumulated on your immersion heating coils, we are sure the first thought that ran through your mind must have been how did that happen? Well, let us answer it for you.

The water your immersion heating coil is dipped in naturally also has some salt in it. Over the years of constantly operating and heating water, these salt particles can transmit from the water to the coil. This happens when the water containing salt boils and starts evaporating, which in turn causes the salt to stick to the coil.

However, how will you know whether it is the salt deposited on the immersion heating coil and not something else? The salt deposits are white; hence, if you notice a bunch of white particles stuck to your coil, there is a high chance that it is the salt deposits on the immersion heating coil.

If you want to know how to extend the longevity of your cartridge heaters, tap here.

How Can You Clean or Remove the Salt Deposits on an Immersion Heating Coil?

Now that you understand how salt deposits on the immersion heating coil and how you differentiate it, the question stands about cleaning or removing the salt deposits from the immersion heating coil. These coils serve exceptional benefits when it comes to heating waters both in residential and business sectors, and maintaining them would only put a few extra years into their work.

Hence, cleaning or removing the salt deposits on an immersion heating coil is essential. Here is how you can do this:

Disconnect from Power

The immersion heating coil or rod works through an electrical supply. The electrical energy provides the rod enough heat to pass it into the water and heat it. Hence, it is a no-go that when you approach an immersion heating coil to clean it, it will have an electric current running through it.

Hence, the first step in cleaning the salt deposits that you should take is to disconnect the coil from power. This will cut off the electric current. Next, let the coil cool down before retrieving it from the water.

Prepare the Cleaning Solution

The next step would be to prepare a cleaning solution to clear off the salt deposits from the rod. To prepare a cleaning solution, mix equal parts water and vinegar solution in a bowl big enough to submerge the heating rod inside.

You can add around 2 tbsps of sodium carbonate to your solution. It is highly effective in helping dissolve the minerals and salt deposits accumulated on your rod. When your solution is ready, put your rod into it and let it rest for a while.

Soak and Scrub the Rod

Once your immersion rod is left in the solution for 20-30 minutes, removing a brush or Cloth is time. Now, pick up the rod and gently scrub the heating rod to remove the salt deposits from it. Cleaning an immersion rod properly will help you increase its efficiency and lifespan to ensure that your immersion heating rod works for a good few more years.

Rinse and Dry the Rod

Now that you are satisfied with your scrubbing, it will be time to rinse your immersion heating rod. When scrubbing, place your rod in a clean water bowl to remove any residue from the cleaning solution. Wipe your rod with a clean and dry cloth, then leave it out to let it air-dry for a bit. Once done, your rod would be set to be dipped, and heat the water again.

Removing the Salt Deposits on an Immersion Heating Coil – The Post-Cleaning Steps

If you understand how to clean the salt deposits from your immersion heating rod properly, do not think the tasks end here. To ensure adequate efficiency and long-term use, understanding the post-cleaning steps for these rods is just as essential. The post-cleaning steps aren’t long; you just need a thorough insight into what you should do to do right by your rod.

After cleaning, inspect the rod for any signs of damage or corrosion. Moreover, make sure to check the anode rod and the terminal closure gasket. Also, ensure to dry your immersion heating rod completely before reapplying it.

Considering the post-cleaning steps and implementing them thoroughly will help increase your immersion heating rod life expectancy and ensure that your rod delivers the best results. The cleaning and post-cleaning steps aren’t complicated and do not take much time either.

Hence, whenever you feel your rods could use a good cleaning, we highly advise you to carry it out. However, while cleaning your rod is excellent, it is also ideal to keep some safety measures under consideration while cleaning your rod.

The Safety Precautions You Should Ensure


Cleaning an immersion heating rod for it to work efficiently is excellent. However, one must remember this rod operates on the electric current, so taking in the proper safety considerations should always be your priority.

  • Disconnect an immersion heating rod from power to prevent electricity or hazards when cleaning it.
  • Always handle the rod only when it has cooled down to prevent burn injuries.
  • Use conductive materials and maintain the water levels in a normal range.
  • Keep children (if any around) away from the rod while cleaning occurs.

How Often Should You Clean Your Immersion Heating Coils?

While adding water softener or installing a scale inhibitor is excellent, we understand that, at times, you would want to clean the immersion heating coil by hand as well. If that is the case and you are wondering how often you should do this, then let us tell you.

Clean your immersion heating coil every three months if your water is hard. However, if your water is soft, you can go about cleaning your every six months or so.

To learn the differences between tubular heaters vs. cartridge heaters, tap here.

How Can One Prevent Salt Deposits on the Immersion Heating Coil?

We understand that you don’t like your immersion heating rod building salts deposited on it. While cleaning your rods daily or even frequently can prevent the salt deposits from accumulating, we understand this can be a hassle for you.

Hence, anyone would want to look out for a more convenient and more accessible way to clean the immersion heating coils, which have salt deposits accumulated on them. If this is the same case for you, hear us out.

You can prevent mineral accumulation and salt deposits on the immersion heating coil by installing a scale inhibitor or water softener on the water now and then. This will help prevent salt buildup on your immersion heating coil and ensure you do not have to clean it regularly.


Having salts deposited on your immersion heating coil can be a nuisance. However, who said you cannot remove them quickly? If you were looking for the simplest ways to clean the salt deposits from the immersion heating coil, we hope this article was helpful for you.

If you are looking for top-notch immersion heaters with minimal maintenance requirements, we suggest checking out our range. Besides the immersion heaters, you can also find multiple others, from cartridge heaters to tubular heaters and more. The best part? We provide bulk quantities to meet your needs. So, go check out our Product Page for more information!

Sales representive Luke


As the devoted CEO of Hasteco, I've spent countless years nurturing my passion for heating elements. Warmly inviting you to connect & collaborate for cozy, tailor-made solutions. Get in touch!

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