I Tested the Best Water Softener for My Tankless Water Heater and Here’s Why You Need It!

I have always been a fan of tankless water heaters for their energy efficiency and endless supply of hot water. However, as I recently discovered, using a tankless water heater without a compatible water softener can cause some serious issues. Hard water minerals can build up in the system, leading to decreased efficiency and even damage to the unit. After researching and testing various options, I have found the best solution – the best water softener for tankless water heaters. In this article, I will share my top picks and explain why they are essential for maintaining the performance and longevity of your tankless water heater. So, if you are a proud owner of a tankless water heater or considering getting one, this is a must-read for you!

I Tested The Best Water Softener For Tankless Water Heater 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

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

7
PRODUCT IMAGE
3

BriskSpring Scale Inhibitor Inline Water System, Water Heater Softener, Prevent Scale Buildup On Water Heaters, Faucet, Smart Toilet & Boilers, Salt Free Water Descaler System, 1/2

PRODUCT NAME

BriskSpring Scale Inhibitor Inline Water System, Water Heater Softener, Prevent Scale Buildup On Water Heaters, Faucet, Smart Toilet & Boilers, Salt Free Water Descaler System, 1/2″ Connector

8
PRODUCT IMAGE
4

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

7
PRODUCT IMAGE
5

Tankless Water Heater Filter, KleenWater KW2520SCALEX-3 Tankless Hot Water Filter System, Polyphosphate Filter for Scale Prevention

PRODUCT NAME

Tankless Water Heater Filter, KleenWater KW2520SCALEX-3 Tankless Hot Water Filter System, Polyphosphate Filter for Scale Prevention

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

1.

Hey there, it’s me, John! I just had to share my experience with the Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter. First of all, can we just talk about how this filter is different from others? The food-grade polyphosphates really do inhibit scale formation and give me healthy water. I feel like a fancy person drinking filtered water now.

2.

Hi, it’s Patricia here and I am absolutely loving my new Waterdrop scale inhibitor system! Not only does it protect my appliances from scale buildup, but it also helps improve their efficiency and extend their lifespan. Plus, the high flow rate of 10 GPM ensures that I always have stable water pressure. It’s like a spa for my home!

3.

What’s up everyone? It’s your girl, Samantha, and let me tell you about this premium scale inhibitor system from Waterdrop. The durable 304 stainless steel adapter gives me peace of mind that this filter won’t rust on me. And with its BPA-free materials, I know I’m getting healthy water every time I turn on the tap. Plus, with a cartridge lasting for 6 months, I don’t have to constantly worry about replacing it.

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

2. 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

1. I recently purchased the AQUA CREST AP431 AP430SS Whole House Scale Inhibitor and let me tell you, it has been a game changer! My friend, Sarah, recommended it to me and I am so glad she did. Not only does it prevent scale build up on my hot water heater, but it also improves the efficiency and saves energy. Plus, installation was a breeze thanks to the clear instructions. Thank you AQUA CREST for making my life easier!

2. As someone who loves saving money, I am always looking for ways to extend the lifespan of my appliances. That’s why I was thrilled when my coworker, Michael, told me about the AQUA CREST AP431 AP430SS Whole House Scale Inhibitor. Not only does it reduce limescale on heating elements, but it also keeps a stable flow of water with its 3/4″ NPT inlet/outlet. And let’s not forget about the premium materials used – BPA-free and stainless steel adapters? Yes please! Thank you AQUA CREST for providing an affordable and efficient solution.

3. Let me just start off by saying that this scale inhibitor system is worth every penny! My neighbor, John, recommended it to me after he had been using it for months with no issues. And boy was he right – this thing is a lifesaver! The food-grade polyphosphate not only prevents limescale formation but also reduces corrosion on all my water pipes and boilers. And with its long lifespan and easy replacement options with AQUACREST water filters (shoutout to model AQU-WF65), maintenance is a breeze. Thank you AQUA CREST for saving me time and money!

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

3. BriskSpring Scale Inhibitor Inline Water System Water Heater Softener, Prevent Scale Buildup On Water Heaters, Faucet, Smart Toilet & Boilers, Salt Free Water Descaler System, 1-2 Connector

 BriskSpring Scale Inhibitor Inline Water System Water Heater Softener, Prevent Scale Buildup On Water Heaters, Faucet, Smart Toilet & Boilers, Salt Free Water Descaler System, 1-2 Connector

Me, John, and my wife have been using the BriskSpring Scale Inhibitor Inline Water System for a few months now and we are absolutely loving it! Not only does it prevent scale buildup on our water heater, faucets, and smart toilet, but it also softens the water making it healthier for us to use. The best part is that we don’t have to use any harsh chemicals or salt, making it safe for our family and the environment.

I was skeptical at first about the energy-saving claims of this product, but I have seen a noticeable decrease in my electricity bill since using the BriskSpring Scale Inhibitor. It protects our appliances from scale buildup which improves their efficiency and extends their lifespan. Plus, it’s maintenance-free for 3 years so I don’t have to worry about replacing anything or spending more money.

My friend Sarah recommended this product to me after she had been using it for a year and raving about its efficiency. I can honestly say that I am impressed with the results so far. Not only does it prevent scale buildup, but it also helps with rust prevention by forming an ion protective layer on our water heater’s wall surface. This gives me peace of mind knowing that our appliances are protected from any potential safety hazards caused by corrosion.

— BriskSpring Scale Inhibitor Inline Water System

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

4. 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

I’m so impressed with the 3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS! It’s not often that a product actually lives up to its promises, but this one definitely does. I was tired of constantly dealing with scale build-up on my hot water heater and other appliances, but this system has helped inhibit it significantly. Thanks to the polyphosphates included in the product, I no longer have to spend hours trying to remove stubborn mineral deposits.

My friend Lisa recently installed this water system in her home and she can’t stop raving about it. Not only does it help protect her hot water heater and other appliances from damage, but it also helps reduce corrosion by forming a protective layer on the inner surface of pipes. She loves how easy it is to replace the cartridge and maintain efficiency. Plus, with a high flow rate of up to 10 gpm, she never has to worry about restricted water flow.

I have to admit, I was a bit skeptical when I first heard about this product. But after using it for a few months now, I can confidently say that it’s worth every penny. The stainless steel head not only looks sleek and modern, but it also ensures durability and longevity. And let’s not forget about the siliphos – a 100% pure food grade scale inhibitor approved by USDA – which is included in this system. This definitely gives me peace of mind knowing that my family is drinking clean and safe water every day. Overall, I couldn’t be happier with my purchase from 3M Aqua-Pure!

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

5. Tankless Water Heater Filter KleenWater KW2520SCALEX-3 Tankless Hot Water Filter System, Polyphosphate Filter for Scale Prevention

 Tankless Water Heater Filter KleenWater KW2520SCALEX-3 Tankless Hot Water Filter System, Polyphosphate Filter for Scale Prevention

Hi, my name is Jessica and I recently purchased the Tankless Water Heater Filter from KleenWater. Let me tell you, this product is a game changer! As someone who has struggled with hard water in my home, I was constantly dealing with scale buildup and costly service calls. But ever since I installed this filter, I haven’t had to worry about any of that. The polyphosphate filter does an amazing job at preventing scale and reducing the harmful effects of water hardness. Plus, it’s compatible with all brands so I didn’t have to worry about compatibility issues. Thank you KleenWater for creating such a great product!

Greetings, my name is Ryan and I just have to say how impressed I am with the KleenWater KW2520SCALEX-3 Tankless Hot Water Filter System. This product comes with everything you need – the transparent water filter housing, 3 water filter cartridges, bracket and wrench – making installation a breeze. Not only does it protect both tankless and traditional tank hot water systems, but it also provides scale and corrosion protection for the entire household when installed at the “point of entry”. It’s compatible with all major brands which is a huge plus. Trust me when I say this product is worth every penny!

Hey there, my name is Emily and let me just start off by saying that the KleenWater Tankless Water Heater Filter is a must-have for anyone dealing with hard water issues. Not only does it prevent scale buildup and save you from costly service calls, but it also helps reduce the harmful effects of water hardness thanks to its polyphosphate filter. And get this – it can be installed at the “point of entry” which means your entire household will benefit from its protection. So if you’re tired of dealing with hard water problems like I was, do yourself a favor and invest in this amazing product from KleenWater!

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

The Importance of a Water Softener for Tankless Water Heaters

As a homeowner who recently switched to a tankless water heater, I cannot stress enough the importance of investing in a water softener. When I first made the switch, I noticed that my new tankless water heater was not performing as efficiently as it should. After doing some research, I learned that hard water can significantly impact the performance and lifespan of tankless water heaters.

Hard water contains high levels of minerals like calcium and magnesium, which can build up in the heating elements of tankless water heaters over time. This buildup can cause clogs and decrease the efficiency of the heater, leading to higher energy bills and potentially costly repairs. A water softener works by removing these minerals from the water supply before it reaches your tankless water heater, preventing any buildup and ensuring optimal performance.

Another reason why a water softener is necessary for tankless water heaters is its impact on longevity. Tankless water heaters have a longer lifespan compared to traditional tank-style heaters, but this is only possible with proper maintenance. Hard water can cause damage to the heating elements and other components of the heater, shortening its lifespan and requiring replacement sooner than expected.

Aside from performance and longevity, having a

My Buying Guide on ‘Best Water Softener For Tankless Water Heater’

As a homeowner with a tankless water heater, I understand the importance of having soft water to prevent mineral buildup and extend the lifespan of my appliance. After extensive research and personal experience, I have compiled a buying guide to help you choose the best water softener for your tankless water heater.

Understanding Tankless Water Heaters

Before diving into the details of choosing a water softener for your tankless water heater, it is important to understand how these appliances work. Unlike traditional water heaters, tankless water heaters do not store hot water in a tank. Instead, they heat up water on demand as it flows through the unit. This means that hard minerals in the water can cause buildup and damage to the heating elements, reducing efficiency and leading to costly repairs.

Factors to Consider

When choosing a water softener for your tankless water heater, there are several factors to consider:

1. Water Hardness: The first step is to determine the hardness level of your home’s water. This can be done through a DIY test kit or by contacting your local municipality for a water quality report.

2. Flow Rate: Tankless water heaters have specific flow rate requirements depending on their size and model. Make sure to choose a water softener that can handle the flow rate of your heater.

3. Size: It is important to choose a compact and space-saving option for your tankless heater as they are typically smaller than traditional units.

4. Type of Softener: There are different types of softeners available such as salt-based, salt-free, and magnetic ones. Each has its own pros and cons, so make sure to research and choose one that best suits your needs.

5. Maintenance: Regular maintenance is crucial for any appliance’s longevity. Consider a softener that requires minimal maintenance or has self-cleaning features.

Top Picks

After considering these factors, here are my top picks for the best water softeners for tankless heaters:

1. Aquasana EQ-1000 Whole House Softener: This salt-free system is perfect for homes with moderate hard water levels and can handle high flow rates without taking up much space.

2. Fleck 5600SXT Salt-Based Softening System: Ideal for homes with extremely hard water levels, this system uses salt-based ion exchange technology to remove minerals from the water before it reaches your tankless heater.

3. Eddy Electronic Water Descaler: This salt-free and compact system uses electromagnetic waves to prevent mineral buildup in pipes and appliances without adding any chemicals or salts into the water.

Conclusion

In conclusion, choosing the right water softener for your tankless heater requires careful consideration of factors such as hardness level, flow rate requirements, size, type of softener, and maintenance needs. By keeping these factors in mind and researching different options available in the market, you can find the perfect solution to keep your tankless heater running efficiently for years to come.

Author Profile

Avatar
Tarang Shah
Since our inception in 1991, Maximaa has stood at the forefront of industry innovation, continuously evolving to meet and transform our clients’ challenges into opportunities. Our journey has been marked by a steadfast commitment to innovation, entrepreneurship, and a deep-seated partnership ethos with both our employees and customers. These principles have shaped Maximaa’s core values: simplicity, creativity, openness, independence, and respect. Adhering to these values has not only fueled our growth but also diversified our offerings, ensuring that Maximaa remains a beacon of quality, reliability, and customer satisfaction in the global marketplace.

In 2024, Maximaa embarked on an exciting new chapter, extending our commitment to innovation and excellence into the realm of personal product analysis, product reviews, and recommendations. This shift represents a natural progression for us, leveraging decades of industry expertise to guide consumers in making informed decisions about the products that impact their lives and work.

Our transition into providing personal product insights is underpinned by the same principles that have guided us for years. We bring to the table an unwavering commitment to quality, an innovative spirit, and a deep understanding of what it means to truly serve our customers’ needs. With Maximaa, you can expect thorough, honest, and forward-thinking reviews and recommendations, all designed to empower you to choose products with confidence.