Best electric water descalers to reduce hard water residue – expert verified

Successfully used in homes and businesses across the world for over 20 years, the Eddy Electronic Water Descaler can be trusted to be highly economical and easy for anyone to fit. It's effective on most types of water pipe and is one of the only electric descalers that come with a risk-free guarantee. It will fit pipes up to 22mm diameter, but if your pipes are larger, the descaler can be altered with the Eddy Extended Cable Set. It's a top recommendation for all hard water homes.

Customers say it's effective in reducing limescale in hard water areas. It may take a few months to see noticeable improvement. But, they say the build-up of residue in the kettle, on shower heads and taps is visibly reduced.

The added benefits are that drinking water tastes better, it feels nicer on skin and hair feels softer after washing.

We love the compact design of this electrical water descaler and the fact it looks more discreet, much like other electrical devices in the home. Designed to fit pipes from 15mm to 35mm, it requires no maintenance and costs less than £5 a year to run making it a fantastic money-saving device that'll also help keep your heating bills under control.

A customer comments that this is a money-saving and environmentally-friendly alternative to using salt-based water softeners. Installation is straight-forward and some customers saw improvements within three weeks. However, overall opinion is polarised about this device's effectiveness. Some customers saw really striking improvements, including a completely residue-free black porcelain sink. There are some very happy customers who are enjoying much silkier water as a result of installing the LIFF LW2 Wrappa Electronic Scale Inhibitor.

The LP2, Little Plumber's larger of their two domestic units, is ideal for large houses with five or more bedrooms due to its stronger output. Easy to install, simply wrap both coils around your copper or plastic cold water pipe and plug them into a three-pin electrical socket. It'll provide total household protection from mineral build-up and help to prolong the life of your household appliances, saving you money in the long run.

The money-back guarantee persuaded some customers to give this device a go, and they were impressed. Customers say there's less scale on glassware and there's improvement in the performance of the dishwasher and washing machine. A customer commented that it may take up to six months to see the benefit from the Little Plumber water softener. Another advises it's not a miracle, but it can reduce limestone build-up to an extent.

The iSpring ED2000-U Electronic Water Descaler will condition the water in your home to stop limescale building up and will dissolve any existing limescale leaving your system clean and running efficiently. Installation is easy. Wrap the full length of each coil around the pipe, making sure the coils are wrapped snug, with no space between the coils.

In a hard water area, this electronic water descaler can protect appliances from limescale build-up and extend their lifespan. It's a small price to pay for ensuring your boiler, central heating, washing machine, and dishwater stay in good condition for years. The low electric charge prevents limescale from building up in pipes and solves hard water issues without chemicals and frequent maintenance.

On average, the device will pay for itself with one year of use as it reduces the overall energy consumption needed to circulate water around your home.

It can also have beauty benefits, as treated water can produce a more effective lather with soap and leave hair feeling smoother and manageable. Around the home, it reduces the build-up of limescale on taps and showerheads. Softened water also improves clothing.

Customer reviews praise the support from iSpring when queries about installation on a combination of pipes arose. Most houses will generally have uniform piping, and fitting the descaler is simple, but it's good to know that customer service support is available if needed.

Crucially, this device turns hard limescale build-up into a soft residue that is easy to wipe away. There are a minority of reviews that comment it didn't work for them, but the positive reviews are compelling enough to prove that when correctly installed, it does work. If in doubt, seek out customer support.

Suitable for all types of pipework including copper, steel, and plastic, the ScaleWizard will work its magic to reduce limescale build-up on taps, basins, showers, and appliances and prevent future build-ups in your pipes and boilers. It won't provide quick results, but will work as a long-term solution with reviewers finding it was still working after five to 20 plus years. Also, it only costs £10 a year to run, and the benefit it brings to the longevity of showers, kettles, washing machines etc. is worth the outlay.

Customers are impressed with the ScaleWizard. In addition to installing it in their homes, they've also installed them in their holiday apartments and even on a narrowboat.

Interestingly, a benefit of installing this device is that shampoo lathers better and you don't have to use as much. Same goes for washing up liquid and car shampoo – so there's an additional money-saving.

Scale down calcium build-up with the Water-King Electronic Water Softener & Descaler. Not only does it inhibit the formation of limescale and efficiently remove existing scale, but it also softens hot water. With a life span of 25 years, it requires no plumbing, no maintenance and absolutely no salt. Plus, there's a no-quibble, 100-day money-back guarantee. Suitable for pipes up to 28mm, it's the ultimate solution for water quality maintenance.

A reviewer comments that they saw an improvement in water quality in just 3-4 hours after installation. Then, within two weeks, there was less limescale on their sinks and taps.

Why get a water descaler? Water with calcium and magnesium forms limescale in pipes, impacting water quality and health. Moosec Water Descaler tackles this issue by using electrical pulses to change the calcium carbonate structure, preventing scale build-up. It safeguards against blockages, damage, high costs, rust and bacterial growth. Plus, installation is easy (taking less than 20 minutes), allowing for flexible placement and effective scale prevention across pipes.

A customer who lives in a 150-year-old house, says that this descaler was initially effective in shifting chunks of limescale from the pipes. Then, longer term they noticed that their low water pressure increased.

However, a customer advises that if there's a power cut, this device will need to be manually restarted, so do make sure it's installed somewhere that's accessible.