BWT Electronic Scale Inhibitor

Product Code: 13487
BWT Electronic Scale Inhibitor
Product Code: 13487
12V. Quick, low cost way to avoid expensive hard water scale build-up.. Lengthens life of appliances. Easy to install, maintenance-free, suitable for pipes from 15-35mm (excluding lead). Less than 10p per week to run. Transformer supplied.


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€52.95 Incl. 20% VAT
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Additional Information
Technical Specification
  • Brand : BWT
  • Product Type : Electronic Scale Inhibitor
  • Water Treatment Product Type : Scale Inhibitors
  • Total Product Weight : 0.68 kg
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

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BWT Electronic Scale Inhibitor is rated 3.9 out of 5 by 32.
Rated 3 out of 5 by from It's doing something. If it's any help to those who might well ask.. "Is it doing anything?" (beyond the fancy row of red running lights that is..). Well it's doing something. Checking the output there is a semi-random multi-level rectangular type waveform fed to the coils. It changes about a little but has 16 levels and a pulse period of 20 uS with an approximate repeat every 400 uS. I couldn't measure amplitude since I was only measuring it with my phone. How this compares to other similar devices on the market I couldn't say. I will say that I have faith in the passive "electrolytic" through-flow devices which do work. I'm in a hard water area and have used an old Scalewatcher (Conceptually similar to this BWT device but now broken). I believe the Scalewatcher was helping with the shower it was feeding.
Date published: 2017-04-01
Rated 4 out of 5 by from Lime Inhibiter Very easy to install with simple instructions I don't know if it works as only fitted 1 week ago hence the low score for performance
Date published: 2017-01-30
Rated 5 out of 5 by from Great bit of kit Fit this on all my combi installs. red neon tells customer its working. Looks smart. better than inline reducers
Date published: 2016-08-04
Rated 4 out of 5 by from Inhibitor Bought this to replace an in line scale inhibitor. Dead easy to install and at least it won't leak like the one that was fitted previously. Only fitted it a couple of days ago but can already see a difference in the water
Date published: 2015-10-30
Rated 5 out of 5 by from limescale inhibitor I bought this to replace a magnetic thru pipe one that split, easy to fit just wrap wires around pipe and fit unit to wall plug in to socket and forget it
Date published: 2015-08-26
Rated 5 out of 5 by from Must fit Having had a cylinder removed from a hard water area which was still ok, but the fire damage insurance paid for its replacement. I was astonished to see that the electronic water softener has kept it free of scale after 30 years. I have had this particular model in another house for seven years and it also appears to do the job. Cannot recommend this type of device highly enough, it doesn't say that it prevents lime scale marks from taps, which a salt based system should do, but it is a fit and forget system so convenience wins (because I don't clean the bathroom).
Date published: 2015-06-13
Rated 3 out of 5 by from the price is acceptable not able to give a correct rating, as an electrical engineer , quite easy to install, you will have to ask me to give you a fuller report in 14 months time, technical details are a bit sketchy , explanation of how this unit works would benefit sales in my opinion , best regards dv
Date published: 2015-03-23
Rated 4 out of 5 by from Does what it says on the tin I was a little apprehensive but these things just work!
Date published: 2014-12-08
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