How to Add Water Softener to Tankless Water Heater

Are you having difficulty keeping your tankless water heater working in peak condition? Hard water can be a major problem for these powerful and efficient heaters, leading to lowered performance and costly repairs. Fortunately, there is an easy fix to this issue – adding a water softener to the system. Doing so will help protect your water heater against hard mineral deposits that would otherwise build up inside and reduce its efficiency. 

How to Add Water Softener to Tankless Water Heater

In this blog post, we’ll provide detailed instructions on how to add water softener to tankless water heater so it stays running effectively! Minerals can build up in your water over time and make it hard, resulting in poor performance of your hot water systems. One of the best ways to manage mineral buildup is to add a water softener directly to your tankless water heater.

In this blog post, we’ll explain why a water softener should be used with a tankless system, how they work, and provide some tips on choosing the right device for maximum effectiveness.

Why You May Want to Add Water Softener to Tankless Water Heater?

There are many reasons why you may want to add a water softener to your tankless water heater. Such as:

1. To Scale Buildup in Pipes and Appliances

One of the major benefits of having a water softener is that it can dramatically reduce the buildup of scale in your pipes and appliances, which can cause damage over time. This is especially important if you have tankless water heaters, since they are designed to work best with soft water.

2. To Improve Water Quality

The minerals in hard water (such as calcium and magnesium) can make it taste bad, and cause soap scum buildup on surfaces. A water softener helps to remove these minerals from your water, leaving the water cleaner and tasting better.

3. To Save Money

Using a water softener can help you save money in the long run since it reduces the need for pipe and appliance repairs caused by scale buildup. It can also reduce the amount of soap you need to use since it helps the soap lather better with less effort.

It Reduces the Need for Pipe

In conclusion, adding a water softener to your tankless water heater is beneficial in many ways and can help improve the efficiency of your system over time. If you’re considering adding a water softener, be sure to weigh the pros and cons and consult an expert for more information. 

Additionally, make sure that the model of water softener you choose is compatible with your tankless water heater. With the proper installation, maintenance, and regular testing, you can enjoy improved water quality in your home for many years to come.

How to Add Water Softener to Tankless Water Heater in 6 Easy Steps

Step 1: Gather the Tools and Materials

The very first step is to gather all the materials and tools you need. You will need a water softener system, PEX tubing, a cutting tool, pipe clamps, hose clamps, or compression fittings. Also, don’t forget a few wrenches and Teflon tape.

Step 2: Prepare the Water Softener System

Once you have all the tools and materials ready, you will need to assemble the water softener system. Follow the directions that come with your specific model to complete this step. Make sure each connection is secure before moving on to the next step.

Step 3: Cut and Connect the PEX Tubing

Using a cutting tool, measure and cut the required amount of PEX tubing. Then, connect one end of the tubing to the water softener system and attach the other end to your tankless water heater. Make sure each connection is secure and without any leaks before moving on to the next step.

Step 4: Install the Bypass Valve

This step is crucial for the proper functioning of your water softener system. Connect one end of the bypass valve to the PEX tubing and attach the other end to a drain line. This will allow you to bypass the softening process if needed.

Step 5: Check for Leaks

Once you have installed the bypass valve, check all the connections for leaks. If there are any leaks, tighten the connection to fix them. It’s important to make sure that there are no leaks before moving on to the next step.

Tighten the Connection to Fix Them

Step 6: Fill and Activate the Water Softener System

Fill up your water softener system according to the manufacturer’s instructions. Once it’s filled, activate the system and you’re done! Now your tankless water heater is equipped with a water softener system so that all the incoming water is softened.

Congratulations on successfully adding a water softener to your tankless water heater!

It’s important to keep in mind that the water softener system needs regular maintenance and should be checked for any signs of damage or wear. If necessary, replace parts when needed.

Following these steps will ensure that your tankless water heater is working at maximum efficiency with a quality water softener system installed. Good luck!

Some Additional Tips to Add Water Softener to Tankless Water Heater

1. Do Not Connect Directly

This is very important. Do not directly connect the water softener to your tankless water heater. This can cause damage, and reduce the efficiency of your system. Also, it may void your warranty.

2. Consider a Separate System

If you want to add a water softener to your tankless system, consider installing a separate system that can be connected upstream from the main unit. This will help protect your tankless water heater from any potential damage and ensure that it operates as efficiently as possible.

3. Consider a Filter System

If you don’t want to install a separate water softener, consider using a filter system. This can help reduce the amount of scale and corrosion that builds up in your tankless system, which will help keep it running smoothly.

4. Install with Care

When installing any additional components to your tankless system, make sure to follow any instructions carefully. If you are unsure about anything, consult a professional for help. This will ensure that your tankless water heater works optimally and remains protected from potential damage.

Ensure That Your Tankless Water Heater Works

These are just some of the tips you should consider when adding a water softener to your tankless water heater system. By following these steps, you can help ensure that your system stays in top shape and operates efficiently. Good luck!

Frequently Asked Questions

What Precautions Should Be Taken Before Adding a Water Softener to a Tankless Water Heater?

Before adding a water softener to your tankless water heater, you should take certain precautions. Firstly, make sure that your tankless water heater has an adequate amount of maintenance and inspection performed on it at regular intervals. Also, be sure to check the manufacturer’s instructions for the specific model and determine whether it is compatible with a water softener.

Additionally, consider checking the pH level of your water beforehand, as some tankless water heater models may not be able to handle high levels of acid.

How Do You Install a Water Softener on a Tankless Water Heater?

Installing a water softener on a tankless water heater is relatively simple. The first step is to remove the cold inlet pipe from the tankless water heater and connect it to the bypass valve of your water softener. Once that’s done, you can then attach a drain line to the outlet side of your water softener. Finally, connect the output of your water softener to the cold inlet pipe at the tankless water heater.

What Are the Advantages of Adding a Water Softener to a Tankless Water Heater?

Adding a water softener to your tankless water heater can have many advantages. Firstly, it can help reduce scale buildup on the inside of your tankless water heater, which can eventually lead to clogging or other system failures. Additionally, a water softener can also help prevent mineral deposits from forming on your showerheads and other bathroom fixtures. Finally, it can also help improve the taste and texture of your hot water.

Can I Use a Water Softener with a Tankless Water Heater?

Yes, it is possible to use a water softener with a tankless water heater. However, before doing so you should make sure that your specific model of tankless water heater is compatible. Additionally, you may need to reduce the pH level of your water in order for it to work properly. If you are unsure, it is best to seek the advice of a professional.

Water Softener With a Tankless Water Heater

Conclusion

Now you know how to add water softener to tankless water heater. Adding a water softener to your tankless water heater is an effective way to reduce the number of hard minerals in the water that can cause damage to plumbing and appliances. You’ll also enjoy softer, cleaner-tasting water for drinking, washing dishes and clothes, and other everyday tasks. 

Consider installing a reputable brand of water softener system with the help of a professional to ensure that your tankless water heater is getting the best protection possible. As long as you take regular maintenance steps, such as changing out the filter cartridges and cleaning the system periodically, your softener should provide years of trouble-free service. Enjoy better quality water for years to come with a well-maintained water softener system!

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Terry Alexander

Hi, I am Terry. I started my professional life as a handyman and did a lot of external and internal repair of home and plumbing support. From my childhood, my passion for home repair and fixtures created an opportuinity to pursue a career in HVAC and plumbing industry. As I gained years of knowledge and my love for plumbing grew overtime, I thought to document my journey so that I could help others who ran into daily problems in their home repair. Hopefully it will help you fix those pesky home repair and plumbing problems that always seem to happen at the worst time possible!

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