No the ones that work best use electromagnets and high voltages. But as has
been said before this is only part of the story.
Brian

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The Sofa of Brian Gaff...

Blind user, so no pictures please!
"GB" wrote in message
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On 11/03/2018 09:25, ARW wrote:
Well it sort of worked

http://wiki.diyfaq.org.uk/index.php/File:CHcleaner.jpg

And for anyone who cannot see it's a magnetic cleaner so full of the crud
that it has collected that it has split open.



I'm somewhat perplexed by that. The only one I have ever opened up has a
magnetic stick enclosed in plastic, and the central heating water swirls
round the outside of the magnet. Just like that one in the photo, except
that the plastic protecting the magnet on mine had not split open.