Top 6 Best Electronic Water Descalers Review

Are you searching for an alternative to salt-based water softeners, which won’t cost high?

If the water is not very hard, water descaler can be the best solution for you.

The water descaling system has a positive effect on plumbing and overall water quality. Most importantly, it does not add any salt in the water, which salt-based water softeners do. Therefore, if you do not want salts in your water, you can use this system.

Unfortunately, buying the best water descaler isn’t so simple, as there are extensive considerations to pick the right one. Before you spend your money on any water descaler, you need to be sure that it can handle your needs. This guide will show you how to go about choosing the best water descaling system.

No worry!

We’ve carried out in-depth research to create a comprehensive list. We hope it’ll help to narrow down your search to just a couple of minutes and choose the right one.

Check out our water descaler reviews.

6 Best Electronic Water Descaling Systems – Comparison Chart

If you’re in a hurry, check out our comparison chart below. It’ll help you to decide quickly.

Product NamePriceWeightDimensions
Best Overall:
Eddy ED6002P-US
Price On Amazon7.8 ounces6.69 x 1.57 x 3.54110 V
Best Whole House:
Price On Amazon14.2 pounds30.2 x 9.5 x 9.4 Not
Best Salt-Free:
Capacitive CWD30
Price On Amazon1.6 pounds8 x 2 x 2.6120V
USA Made:
Scalewatcher 3 star
Price On Amazon2.75 pounds14.4 x 7.4 x 2.9110V
Best for Small House:
HydroFLOW S38
Price On Amazon1 pound2.7 x 1.2 x 4.5120V
Best Budget:
iSpring ED2000
Price On Amazon2 pounds7 x 3.5 x 2110-120V

Best Electronic Water Descalers

Below are 6 of the highest rated options as a useful reference for the water descaling unit.

We have compared more than 50 models, analyzed multiple resources, and consider consumer positive-negative reviews to give you the original information.

Choosing one of these 6 top descalers described below will meet your needs for better everyday water using and drinking experience.

Let’s dive right into the reviews.

1. Eddy Electronic Water Descaler – ED6002P-US

Eddy Electronic Water Descaler

Eddy descaler is an eco-friendly alternative to salt-based water softeners. It’s highly economical that has been used worldwide in thousands of businesses and homes for over 15 years.

Why does the Eddy electronic descaler stand above the rest?

Retains healthy minerals!

It solves the hardness problem of water without removing the beneficial minerals. As a result, you’ll get the health benefits of magnesium and calcium without the water hardness. Thanks to its electromagnetic coils that produce hardness-free water.

It is more efficient than traditional water softeners.

Conveniently, it descales the entire water system and effective on all types of water pipe (except iron and lead).

Most straightforward and easiest to maintain!

It can pump out up to 20 gallons per minute. It requires no maintenance at all but will always offer you great results!

Space-saving design!

It’s significantly small and weighs just over a pound. You can fit it right over the pipes. The space-saving design requires no floor space to install.

Cost-effective and environ-friendly!

Eddy ED6002P-US is one of the most affordable ways of solving water hardness problems.

It costs a fraction of the price of a traditional salt-fed water softener.

As it requires no salt for the softening process, it’ll save not only your money but also the environment.

A decent warranty!

Eddy comes with a lifetime repair or replacement guarantee. So you can rest assured that it’ll hold up well for many years. Of course, the 12-month money-back guarantee gives you the confidence to buy is risk-free.

However, the only downside is it’s 100% electric and not waterproof, so mounting it outside is not recommended as it may threaten your safety.

To sum it up, if you’re looking for the cheapest way to get hardness free water in your home, Eddy descaler is the right device for you. Although it’s not an actual softener, considering its pros, you may go for it.


  • Perfect for mid to large-sized households
  • No plumbing required
  • Space-saving design, easy to set up
  • Comes with an instruction guide
  • Retain health benefits of minerals
  • Highly economical and eco-friendly
  • Excellent warranty and money-back guarantee


  • Not efficient as salt-based water softening system
  • Indoor installation only

2. AO Smith Whole House Salt-Free Water Descaler, AO-WH-DSCLR

AO Smith Whole House Salt-Free Water Descaler

AO Smith water descaler system works for all your water needs. It’s designed to work with both city and well water systems.

Salt-free water throughout your home!

It works effectively for households of four members or more. You can use the softened water for drinking, bathing, cooking, or showering.

This model reduces scale build-up, 97% of chlorine taste, and odor from every tap for up to 600,000 gallons or six years, making it cost-efficient and long-lasting.

What’s more, it reduces the exposure to harsh chlorine that can cause excessive drying. And it gets its job done without the elimination of healthy nutrients from the water.

Extend the life of your appliances!

No worry! It’s a chemical- and salt-free system. The scale controlling media naturally and safely reduces scale build-up in plumbing and internal pipes. Conveniently, it requires no backwashing, no cleaning, or electricity.

Get the unit ready for descaling within no time!

The system comes included with a shut-off valve, hose adapter, and nipple. If you have some basic knowledge of plumbing, DIY installation won’t be complicated for you.


  • Quite versatile- works for city and well water
  • Very easy to install
  • Does not require electricity
  • Simple to use
  • No maintenance needed
  • No need for draining or back-flushing
  • Removes bad smells and tastes of well water


  • A little noisy but not a biggie

3. Capacitive Water Descaler System, CWD30

Capacitive Water Descaler System

Capacitive Water Descaler is a very reliable and maintenance-free solution. This descaling system is better than that of softening.

It does more….

Yarna not only prevents but also removes existing limescale deposits in your faucets, pipes, water heater, and other water-using appliances. Most importantly, it doesn’t eliminate beneficial minerals like Magnesium and Calcium. Thus it reduces scaling, sanitizes the pipes, and prevents rust and corrosion.

What makes it unique?

Unlike the cables used by other water descalers, it features ultra-flat impulse bands that offer more direct contact on your water pipe system.

Conveniently, you can use this device combined with your reverse osmosis, water filtration, and water treatment system. This easy-to-install device works on any type of pipe up to 2-inch thick.

One unit is enough for the entire house!

CWD30 is effective up to 1.2 miles from the installation point along with your pipe system, making it perfect for even larger homes.

No GPG limit!

It’s a max grain supported model, and it effectively treats any grain. Its performance isn’t dependent on water speed. This model uses a broad frequency range (3 to 32kHz), so it’s effective at any water speed.

Now, that’s genius, isn’t it?

Overall, Capacitive CWD30 is a great way to enjoy a limescale-free environment.

Installation is quite simple. You don’t need to cut the pipe.

We bet you’ll love this device!


  • Salt- and chemical-free
  • Cost-effective, saving on the heating bill
  • Clean and protects the pipes and appliances
  • Not dependent on water speed
  • Perfect for any pipe type and materials
  • No expert installation required
  • 100% money-back guarantee


  • No significant issue was found.

4. Scalewatcher 3 star Original Electronic Descaler

Scalewatcher 3 star Original Electronic Descaler

Scalewatcher 3 star is a simple solution to hard water problems. Now you don’t have to use expensive salt-based water conditioners that are also a hassle to maintain. Thanks to this electronic descaler.

This 600mA electronic descaler eliminates the worry of a hard mineral scale build up in your home appliances and plumbing. It keeps your devices running smoothly. That way, you don’t have to deal with the clogged faucet, shower head, water heater.

Less limescale means soften water, clearer glassware and dishes, no itchy skin, dry hair, and better baths. All your water-using appliances will remain in tip-top condition to ensure an improved lifetime.

Every drink ends up being healthy and extra refreshing!

Most importantly, it softens water without destroying all the beneficial minerals and all without ever using salt.

It doesn’t take a lot of work to install- no electrician and no plumbing changes required. Most conveniently, it works on all diameters of both the metal and plastic pipes. The included mounting hardware makes the installation process easier.


  • Ideal for home use
  • More effective and user-friendly
  • Hassle-free installation
  • Minimal cost, low maintenance
  • Made of premium materials, highly durable
  • USA-made
  • Two years manufacturer’s guarantee


  • Fewer users have complained that it often stops working and needs to turn it off and back on again.

5. HydroFLOW S38 Descaler

HydroFLOW S38 Descaler

While the HydroFLOW S38 isn’t the cheapest of the water descaler, it is worth every dime.

It reduces energy and maintenance costs, which extends the service life of appliances and pipes.

It’s designed to treat scale build-up related problems in residential and small commercial plumbing systems and appliances. It’s intended for use on homes and commercial kitchens up to 3,000 sq/ft.

Its patented technology electronically treats water to provide full home protection. It prevents minerals from binding to faucet, water heater, pipes, etc. making clean up a simple wipe and extending appliances’ lives.

The chemical-free solution, entirely earth-friendly!

You don’t need to add any nasty chemicals or salt. Thus, it positively acts to save the earth by no longer dumping chemicals to treat your water. It also helps to reduce energy consumption.

HydroFLOW works with many different types of pipes. It’s compatible with PEX, Galvanized, Copper, and PVC.  It requires no plumbing modification. Simply attaches it to your incoming cold water line and see the results.


  • The latest generation of descaler technology
  • Powerful offers Full home protection.
  • Extend the life of plumbing and appliances
  • Eco-friendly and safe to use
  • Easy to install
  • Maintenance Free & Help to reduce energy consumption.
  • Very compact design, free up valuable space.
  • Money-back guarantee and excellent warranty


  • No technical issue so far, but the unit is expensive.

6. iSpring ED2000 Whole House Electronic Descaler Water Conditioner

iSpring ED2000 Whole House Electronic Descaler Water Conditioner

The iSpring ED2000 is an excellent alternative of water softener if our recommended five other models are a little bit more above your budget.

It is a computerized innovative water conditioning system for hard water problems. If you’re on salt-restricted diets or looking for healthier skin and hair, it’s a perfect unit to give a try.

Designed for very hard water areas (10-19 grains)!

iSpring ED2000 descales the entire water supply system and prevents scale deposits from forming. It also allows the existing scale to break down. Thus, it extends the life of your appliances.

It does not change the chemistry of water.

The unit doesn’t use any salt or chemicals in the process while keeping beneficial minerals intact in the water. It saves energy and great for the environment!

This device works on any pipe, even metal pipe, PVC and PEX. Installation is effortless. You don’t need to modify your plumbing to install it. Of course, you can install it horizontally or vertically.


  • Budget-friendly and eco-friendly solution
  • Great for home use
  • Easy to install, immediate results
  • Maintenance-free
  • Lifetime technical support
  • 1-year money-back


  • If your water has over 0.3 ppm iron content, you’ll need to use an iron removal filter before the ED2000.

Frequently Asked Questions

Q. Is The Electronic Water Descaler Best For Your Needs?

Consider the number of your family members, how much water on average you would use, and the device’s capacity. Choose a model that can process enough water for your needs. In case you have a plan to use it for your large house or small commercial purpose, you may need to use more than one unit.

Q. Can I Afford The Descaler?

Of course, you’ll only buy what you can afford, right? So, be sure to consider the descaler price to see if it lies within your budget estimates.
Of course, you should determine if the particular model you intend to purchase meets your needs, no matter the price.

Q. Is The Warranty Period Long Enough?

The last thing you want to do is invest in a descaling system whose warranty is long enough.
A warranty also gives you an idea about the model’s overall quality.
As stated, an extended warranty indicates that the manufacturer isn’t afraid to stand by it. That means the brand trust in the quality and longevity that their products have to offer.
However, we recommend going for a model with at least a one-year limited warranty on the parts.
Also, check the money-back policy.
Best Electronic Water Descalers


That’s all!

We hope you’ve enjoyed reading our water descaling system reviews as much as we did writing them.

We trust that our buyer’s guide has answered any question you might have in mind when it comes to choosing the right model to serve your hard water softening needs.

Now, you know how to choose the right one and, most importantly, the top water descaler for the money.

So, now it’s your turn!

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