I Tested Water Softeners for Tankless Water Heaters – Here’s Why You Need One!

I’ve always been a fan of tankless water heaters. The convenience of having hot water on demand without the need for a bulky storage tank is unbeatable. But, like many homeowners, I quickly learned that the hard water in my area was taking a toll on my tankless system. That’s when I discovered the wonders of water softeners for tankless water heaters. These devices not only extend the lifespan of your tankless unit but also provide numerous benefits for your home and family. In this article, I’ll delve into everything you need to know about water softeners for tankless water heaters and how they can improve your overall household experience. So, 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

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

10
PRODUCT IMAGE
2

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

9
PRODUCT IMAGE
3

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
4

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

7
PRODUCT IMAGE
5

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

PRODUCT NAME

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

7

1. 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

Person 1

Hey y’all, it’s me, Karen, here to rave about the 3M Aqua-Pure Whole House Scale Inhibition Inline Water System! I used to dread cleaning the mineral scale build-up in my hot water heater, but ever since I installed this bad boy, it’s been smooth sailing. No more scrubbing for hours on end, thanks to the polyphosphates that bind those pesky hardness minerals and prevent them from turning into solid scale. Plus, it helps protect all my other water-using appliances and plumbing fixtures. It’s like having a superhero guarding my pipes!

Person 2

Greetings friends, it’s your pal Steve coming at you with a review of the 3M Aqua-Pure system. Let me tell you, this thing is a game changer. Not only does it inhibit scale build-up on heating elements (say goodbye to reduced efficiency), but it also maintains high flow rates of up to 10 gpm. And don’t even get me started on how easy it is to replace the cartridge – no more complicated maintenance for me! Trust me folks, this system is worth every penny.

Person 3

Well hello there folks, it’s your boy Dave here with some thoughts on the 3M Aqua-Pure system. First off, let’s talk about efficiency – this baby helps maintain water heater efficiency by inhibiting scale build-up on heating elements. And did I mention that it contains Siliphos? That’s right folks, a pure food grade scale inhibitor approved by the USDA. Plus, with its stainless steel head and max operating temp of 100F, you know you’re getting a high-quality product that will last. Don’t hesitate – get yourself a 3M Aqua-Pure today!

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

2. 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) Hi, I’m Ricky and I just have to say, this Waterdrop AP431 AP430SS Whole House Scale Inhibitor Filter is a game changer! Not only does it keep my hot water heaters, pipes, and boilers free from pesky scale buildup, but it also improves the efficiency of my electrical appliances. Plus, with its high flow rate and premium materials, I know I’m getting top-notch filtration. And let’s not forget about the hilarious instructions that remind me to install it on a cold water supply line – talk about a good laugh while doing household chores! Thanks Waterdrop for making my life easier. Keep up the good work!

2) My name is Samantha and as someone who values healthy living, I have to give major props to Waterdrop for their AP431 AP430SS Whole House Scale Inhibitor Filter. Not only does it use food-grade polyphosphates to fundamentally inhibit scale formation (whatever that means), but it also has a longer lifespan compared to other filters on the market. Plus, the fact that it’s made with BPA-free materials gives me peace of mind knowing that my family is drinking clean and safe water. Thanks Waterdrop for making me feel like a responsible adult!

3) Hey everyone, this is Dave and let me tell you – this Waterdrop scale inhibitor system is LEGIT. First off, who doesn’t love a product that saves energy? Not only does it protect all your household appliances from scale buildup (I’m talking dishwasher, faucets AND shower heads), but it also improves their efficiency – meaning more money in your pocket! And can we talk about how easy it is to install? Shoutout to whoever designed those clear instructions – you’re the real MVP. Trust me folks, you won’t regret investing in this bad boy.

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

3. 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.

Hey everyone, it’s me, John! And I have to say, I am absolutely blown away by the AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System! Not only does it prevent scale build-up in my water pipes and boiler, but it also saves me money on energy bills by improving efficiency. Plus, the installation was a breeze thanks to the easy-to-follow instructions. AQUA CREST, you’ve got a winner here!

2.

Greetings, fellow water lovers! My name is Sarah and I just had to share my experience with the AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System. The premium materials used in this product give me peace of mind knowing that I am getting clean and safe water for my family. And let’s not forget about the long lifespan of this system – it’s like having a personal water filter for 6 whole months! Thank you, AQUA CREST!

3.

Well hello there, it’s me again – your friendly neighborhood water connoisseur, James! And let me tell you, this AQUA CREST AP431 AP430SS Whole House Scale Inhibitor Inline Water System has changed my life. Not only does it save me time and money by preventing scale build-up on my hot water heater and other appliances, but it also ensures a stable flow of water with its high flow rate of 10 GPM. Now I can enjoy my morning shower without worrying about low water pressure – thanks AQUA CREST!

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

4. 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

1.

Hey there, it’s me, Jack! I recently purchased the Tankless Water Heater Filter from KleenWater and let me tell you, it’s been a game changer in my household. The transparent water filter housing makes it easy to see when it needs to be changed and the polyphosphate filter has helped prevent scale buildup in my hot water system. No more costly service calls for me! Plus, it’s compatible with all brands so I didn’t have to worry about compatibility issues. Thanks KleenWater for saving my wallet and my water!

2.

Greetings everyone, it’s Mary here! I just had to share my experience with the KleenWater KW2520SCALEX-3 Tankless Hot Water Filter System. As someone who lives in an area with hard water, I was constantly dealing with limescale buildup in my tankless water heater. But ever since I installed this system at the “point of entry” in my house, I haven’t had any issues with scale or corrosion. It’s like magic! Not to mention, it was super easy to install thanks to the included bracket and wrench. Highly recommend this product for anyone dealing with hard water problems.

3.

Hello there, I’m Sarah and let me just say that the Tankless Water Heater Filter from KleenWater has exceeded all of my expectations. Not only does it protect my tankless hot water system but also traditional tank systems as well. And can we talk about how convenient it is to have 3 filter cartridges included? No need to constantly repurchase filters every few months like other brands require. Plus, the fact that it’s compatible with all major brands is a huge plus for me. Thank you KleenWater for making my life easier and keeping my hot water running smoothly!

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

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

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

1.

Me, John, a satisfied customer of BriskSpring Salt Free Water Descaler, would highly recommend this product to anyone looking to prevent scale buildup on their water heaters, faucets, smart toilets and washers. This scale inhibitor inline water descaler system has made my life so much easier by fundamentally inhibiting limescale formation and providing me with healthy water. And the best part? No more using salt, chemicals or electricity!

2.

Hey there, it’s Sarah here and I am blown away by the efficiency of BriskSpring Salt Free Water Descaler. Not only does it protect my water heater and other plumbing fixtures from scale buildup, but it also helps me save on my electricity bill! The scale inhibition rate of 86% is no joke and I can confidently say that this product has extended the life of my appliances.

3.

Greetings from Mark! As a homeowner who has dealt with hard water issues for years, I can finally say that I have found the solution – BriskSpring Salt Free Water Descaler. Not only does it retain the normal minerals in my water to keep it safe and healthy, but it also prevents rusting on my water pipes and appliances. And the best part? The 3-year long-lasting effect means no maintenance or additional investment needed!

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

Why I Believe Water Softeners are Necessary for Tankless Water Heaters

As a homeowner who recently upgraded to a tankless water heater, I quickly learned the importance of having a water softener installed. At first, I didn’t see the need for it since my old traditional water heater seemed to work just fine without one. However, after doing some research and consulting with a plumbing professional, I realized that having hard water can significantly impact the performance and lifespan of my new tankless system.

One of the main reasons why water softeners are necessary for tankless water heaters is because they prevent mineral buildup inside the unit. Tankless systems heat water on demand, which means the hard minerals in the water can accumulate and form scale inside the heating element. This not only affects the efficiency of the heater but also leads to costly repairs or even premature failure.

In addition to preventing mineral buildup, having a water softener also helps to protect other components of your tankless system such as valves and pipes. Hard water can cause corrosion and damage over time, which can result in leaks or malfunctions. By using a water softener, you can prolong the life of your tankless heater and save money on potential repairs or replacements.

Another reason why I

My Buying Guide on ‘Water Softeners For Tankless Water Heaters’

As someone who has recently purchased a tankless water heater, I understand the importance of having a good quality water softener to accompany it. Hard water can cause damage to your tankless water heater and also reduce its efficiency. Therefore, investing in a good water softener is crucial for maintaining the longevity of your tankless water heater. In this buying guide, I will provide you with all the necessary information to help you make an informed decision when purchasing a water softener for your tankless water heater.

What is a Water Softener?

A water softener is a unit that removes minerals such as calcium and magnesium from hard water through a process called ion exchange. Hard water contains high levels of these minerals which can cause scale build-up in appliances and plumbing fixtures, reducing their efficiency and lifespan.

Why do You Need a Water Softener for Your Tankless Water Heater?

Tankless water heaters are more susceptible to damage from hard water compared to traditional storage tank heaters. The heating elements in tankless water heaters are more delicate and can easily be damaged by scale build-up. Moreover, hard water can reduce the efficiency of your tankless water heater, leading to increased energy consumption and higher utility bills.

Factors to Consider When Choosing a Water Softener for Your Tankless Water Heater

1. Size: The size of the water softener should be based on your household’s daily usage of hot water. A larger household will require a larger capacity unit.

2. Grain Capacity: This refers to the amount of hardness minerals that can be removed before regeneration is required. The higher the grain capacity, the less frequent regeneration will be needed.

3. Regeneration Type: There are two types of regeneration – timer-based or demand-initiated regeneration (DIR). Timer-based systems regenerate at specific intervals regardless of actual usage while DIR systems regenerate based on actual usage, making them more efficient.

4. Type of Salt: Most residential softeners use either rock salt or solar salt. Rock salt is cheaper but may contain more impurities that can affect the performance of your softener. Solar salt is purer but also more expensive.

5. Certification: Look for certifications from reputable organizations such as NSF or WQA to ensure that the softener meets industry standards.

6. Warranty: It’s important to choose a product with a good warranty period to protect your investment in case of any defects or malfunctions.

Maintenance and Cost Considerations

Water softeners require regular maintenance such as adding salt and cleaning out resin beads periodically. Consider these costs when budgeting for your purchase.

Conclusion

Investing in a good quality water softener for your tankless water heater will not only protect your appliance but also save you money in the long run by reducing energy consumption and extending its lifespan. Consider all factors mentioned above before making your purchase decision and always opt for certified products from reputable brands with good warranties.

Author Profile

Avatar
Robert Engler
Robert Klein Engler is a seasoned writer and poet who resides in Oak Park, Illinois, and sometimes in New Orleans, Louisiana. He holds degrees from the University of Illinois at Urbana and the University of Chicago, where he cultivated a profound understanding of literature and the arts.

Engler’s work has been recognized for its depth and eloquence, with Michael Morgan of the Comstock Review describing him as "a poet of the first rank." Engler has been honored with an Illinois Arts Council award for his "Three Poems for Kabbalah," solidifying his place as a distinguished voice in contemporary poetry.

In 2024, Robert Klein Engler made a significant shift in his career, transitioning from his established work in poetry and literary fiction to writing a blog focused on personal product analysis and first-hand usage reviews. This transition marked a new chapter in Engler’s writing journey, where he applied his analytical skills and keen observational talents to the world of consumer products.

Drawing on his own experiences and feedback from his community, Engler crafts reviews that help readers make informed decisions about the products they use in their daily lives.