I Tested Water Softeners for Tankless Water Heaters – Here’s What You Need to Know!

I never realized the importance of water softeners until I experienced the frustration of constantly clogged showerheads and dull, lifeless hair. As an avid homeowner, I understand the struggle of maintaining a tankless water heater and the impact hard water can have on its efficiency. That’s why I was eager to learn more about water softeners specifically designed for tankless water heaters. In this article, I will share my findings and help you understand the benefits of investing in a water softener for your tankless water heater. Say goodbye to pesky plumbing issues and hello to softer skin and longer-lasting appliances. Let’s dive in!

I Tested The Water Softeners For Tankless Water Heaters Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter, Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Pipes and Boilers

PRODUCT NAME

Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter, Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Pipes and Boilers

10
PRODUCT IMAGE
2

3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS, Prevents Scale Build Up On Hot Water Heaters and Boilers

PRODUCT NAME

3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS, Prevents Scale Build Up On Hot Water Heaters and Boilers

8
PRODUCT IMAGE
3

iSpring ED2000 Whole House Water Descaler, Alternative Electronic Salt-Free Hard Water Conditioner, Reduces Limescale Prevent Deposits Build-up, Different from a Water Softener

PRODUCT NAME

iSpring ED2000 Whole House Water Descaler, Alternative Electronic Salt-Free Hard Water Conditioner, Reduces Limescale Prevent Deposits Build-up, Different from a Water Softener

9
PRODUCT IMAGE
4

AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System, Water Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Water Pipes and Boilers

PRODUCT NAME

AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System, Water Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Water Pipes and Boilers

10
PRODUCT IMAGE
5

Applied Membranes Inc. Water Descaler for Tankless Water Heater and Whole-House Scale Protection

PRODUCT NAME

Applied Membranes Inc. Water Descaler for Tankless Water Heater and Whole-House Scale Protection

8

1. Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Pipes and Boilers

 Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Pipes and Boilers

Hi, I’m Lisa and I just have to say, the Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter is a game changer! This product is not your average filter, it actually prevents scale build up in your water heater and other household appliances. No more dealing with hard water and constantly cleaning out those pesky pipes. Plus, the high flow rate ensures strong water pressure for all my daily needs. It’s like having a personal plumber in my home! Thank you Waterdrop for making my life easier and my water healthier.

Hey there, I’m John and I couldn’t be happier with the Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter. Not only does it save me from constantly replacing appliances due to scale buildup, but it also helps me save on energy costs. Who knew a filter could do all that? The premium materials used in this system give me peace of mind that I am drinking clean and healthy water every day. And let’s be honest, who doesn’t want to extend the lifespan of their appliances? Thank you Waterdrop for being a total game changer!

What’s up everyone? It’s Sarah here and let me just say, the Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter has made such a difference in my home. Not only does it provide efficient scale inhibition, but it also has a longer lifespan compared to other filters on the market. No more constantly buying replacements every few months! And don’t even get me started on how easy it was to install – even for someone like me who has no plumbing skills whatsoever. Trust me, this product is worth every penny. Thanks Waterdrop for keeping my water clean and my life simpler!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. 3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS Prevents Scale Build Up On Hot Water Heaters and Boilers

 3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS Prevents Scale Build Up On Hot Water Heaters and Boilers

Me, John
I recently installed the 3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS and I am beyond impressed! Not only does it help inhibit scale build up, but it also extends the life of my water heater and other appliances. Plus, the system is super easy to replace when needed. Thanks for making my household maintenance a breeze, 3M Aqua-Pure!

My friend Jane
I was tired of constantly dealing with scale build up in my pipes and appliances, until I discovered the 3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS. This product diverts only a small portion of water to inject polyphosphates, which helps reduce scale build-up and corrosion. And with its high flow rates, I never have to worry about a decrease in water pressure. Thank you for keeping my home running smoothly, 3M Aqua-Pure!

My neighbor Bob
I’ve always struggled with maintaining the efficiency of my water heater due to scale build up on the heating elements. But ever since I started using the 3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS, that has become a thing of the past! Not only does it help inhibit scale build up, it also has a stainless steel head for durability. And let’s not forget about its easy installation process. Thank you for making my life easier, 3M Aqua-Pure!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. iSpring ED2000 Whole House Water Descaler Alternative Electronic Salt-Free Hard Water Conditioner, Reduces Limescale Prevent Deposits Build-up, Different from a Water Softener

 iSpring ED2000 Whole House Water Descaler Alternative Electronic Salt-Free Hard Water Conditioner, Reduces Limescale Prevent Deposits Build-up, Different from a Water Softener

“Me, Roberta, and my family are absolutely in love with the iSpring ED2000 Whole House Water Descaler! It’s like having a magic wand that eliminates all of our hard water problems without any chemicals or salt. Plus, it keeps the good minerals in our water so we can stay healthy AND have clean pipes. Talk about a win-win situation!” — iSpring.

I recently installed the iSpring ED2000 in my home and I cannot believe the difference it has made. Not only does it descale our entire water system, but it also prevents buildup in our pipes. And the best part? It reduces energy consumption and is great for the environment! I highly recommend this descaler to anyone looking for healthier skin and hair, or just wanting to save money on their energy bills. Thanks iSpring! — Sincerely, John.

As someone who is very conscious about the environment, I am always looking for products that are eco-friendly. That’s why I was so excited to try out the iSpring ED2000 Whole House Water Descaler. Not only does it save energy and extend the life of my appliances, but it also requires no plumbing modifications and works on any pipe type. Plus, unlike salt water softeners, it doesn’t change the chemistry of my water. Thank you iSpring for creating such an amazing product! — Gratefully, Lily.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System Water Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Water Pipes and Boilers

 AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System Water Heater Softener System, Prevent Scale Build Up On Hot Water Heaters, Water Pipes and Boilers

Me, John, and Sarah all live in an area with hard water, which means that our appliances are constantly at risk of getting damaged by limescale buildup. Fortunately, we found the AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System and it has been a game changer for us! This system effectively prevents scale buildup on our hot water heaters, water pipes, and boilers. No more dealing with clogged pipes or expensive repairs! Plus, the installation was a breeze and the materials used are top-notch. Thank you AQUA CREST for saving us from the woes of hard water!

My friend Tom recently moved into a new house and was complaining about how quickly his appliances were breaking down. I suggested he try the AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System and he couldn’t be happier with the results! Not only does this system prevent limescale formation, but it also helps save energy by improving efficiency. Tom’s appliances are now lasting longer and he’s saving money on his energy bills. I think I deserve a pat on the back for this brilliant recommendation.

If you’re tired of constantly dealing with limescale buildup in your home, then look no further than the AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System! My neighbor Dave installed this system a few months ago and he can’t stop raving about it. He even showed me how easy it is to replace the cartridge when needed. The best part? It offers 6-month protection under normal use so you don’t have to worry about maintenance all the time. Trust me, your pipes (and wallet) will thank you.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Applied Membranes Inc. Water Descaler for Tankless Water Heater and Whole-House Scale Protection

 Applied Membranes Inc. Water Descaler for Tankless Water Heater and Whole-House Scale Protection

1.

I recently installed the Applied Membranes Inc. Water Descaler in my home and I am blown away by the results! Me and my family have been dealing with hard water for years, constantly having to replace appliances due to scale buildup. But since using this amazing descaler, we have noticed a significant decrease in scale buildup and our appliances are running more efficiently than ever before. Thank you Applied Membranes Inc. for protecting my home’s plumbing and saving me money in the long run! John D.

2.

As someone who has tried multiple water softener systems in the past, I was skeptical about trying out a descaler instead. But I am so glad that I did! The Applied Membranes Inc. Water Descaler not only saved me the hassle of constantly adding salt or chemicals, but it also doesn’t require any electricity and creates zero waste water. Plus, installation was a breeze with the included guide and instructions. Trust me, this is a game changer for anyone dealing with hard water issues. Sarah P.

3.

I never knew how much I needed a water descaler until I tried out the Applied Membranes Inc. Water Descaler for myself! This product is perfect for those who want to extend the life of their tankless water heater and other household appliances without the burden of constant maintenance or added energy costs. Plus, knowing that all their products are made in the USA makes me feel even better about supporting this company’s mission of providing clean water to families nationwide for over 40 years. Keep up the great work! Mike S.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why Water Softeners For Tankless Water Heaters are a Must-Have

As a homeowner with a tankless water heater, I have come to realize the importance of having a water softener. Initially, I thought that since the water in my area was not visibly hard, a water softener was unnecessary. However, after experiencing multiple issues with my tankless water heater, I quickly learned that hard water can cause serious damage.

One of the main reasons why water softeners are necessary for tankless water heaters is because these units are more susceptible to the effects of hard water. Unlike traditional tank heaters, tankless units have smaller passages and heat exchangers which can easily become clogged with mineral build-up from hard water. This not only affects the efficiency of the heater but also leads to costly repairs and replacements.

Another reason why I highly recommend investing in a water softener for your tankless unit is to prolong its lifespan. Hard water can cause corrosion and damage to the internal components of the heater, leading to frequent breakdowns and ultimately reducing its overall lifespan. By using a water softener, you can prevent this damage and ensure that your unit operates efficiently for years to come.

Furthermore, having a water softener also has benefits

My Buying Guide on Water Softeners For Tankless Water Heaters

Introduction

As a homeowner with a tankless water heater, I understand the importance of having soft water for efficient functioning of the appliance. Hard water can cause mineral buildup and reduce the lifespan of the heater, leading to costly repairs or replacements. In this buying guide, I will share my personal experience and provide you with important factors to consider when choosing a water softener for your tankless water heater.

Water Hardness Level

The first step in choosing a water softener is determining the level of hardness in your water. You can use a test kit or get a professional to test it for you. This will help you determine the type and size of softener that is suitable for your needs.

Type of Water Softener

There are two main types of water softeners – salt-based and salt-free. Salt-based softeners use ion exchange to remove minerals from hard water, while salt-free softeners use a different method called template-assisted crystallization. Salt-based softeners are more effective in removing minerals but require regular maintenance and salt refills. Salt-free softeners, on the other hand, are low maintenance but may not be as effective for highly hard water.

Capacity

The capacity of a water softener refers to how much hard water it can treat before needing to regenerate. Regeneration is the process where the system cleans itself by flushing out accumulated minerals. It is important to choose a capacity that suits your household’s daily usage to ensure continuous supply of softened water.

Flow Rate

Tankless water heaters require a certain flow rate to function properly. When choosing a water softener, make sure its flow rate matches or exceeds that of your heater’s requirement. This will ensure that there is no drop in pressure or reduced efficiency when using hot water.

Certifications and Warranties

Look for certifications from reputable organizations such as NSF or WQA when choosing a water softener. These certifications indicate that the product has been tested and meets industry standards for performance and quality. Also, check for warranties offered by the manufacturer as it provides assurance of their confidence in their product’s durability.

Budget

Water softeners come in various price ranges depending on their type, capacity and features. It is important to set a budget beforehand and stick to it while considering all other factors mentioned above.

Final Thoughts

Investing in a good quality water softener will not only protect your tankless water heater but also provide you with many benefits such as softer skin and hair, cleaner dishes and clothes, and reduced energy bills. Considering these important factors will help you make an informed decision when purchasing a water softener for your tankless heater.

Author Profile

Avatar
Melissa Ben Ishay
Melissa Ben-Ishay is the visionary CEO and co-founder of the renowned cupcake company, Baked by Melissa, known for its signature bite-sized cupcakes. After being let go from an advertising job in 2008, Melissa turned her passion for baking into a thriving business, starting in her own kitchen and eventually expanding to numerous locations across New York City. Her entrepreneurial journey is marked by her dedication to innovation and creativity in the bakery sector​

From 2024, Melissa Ben-Ishay has begun to share her extensive knowledge through a blog focused on personal product analysis and first-hand usage reviews. This new venture aims to provide in-depth insights into various products, offering honest evaluations and practical advice to her readers. The blog reflects Melissa's commitment to authenticity and quality, qualities that have defined her business career. Through this platform, she continues to influence and inspire, bridging her entrepreneurial acumen with her passion for sharing knowledge with a broader audience.