Calidex....Boilers up to  5 litres = £5.99, 5 to 18 litres  = £10.99

Ever worry about your heating element, this is a product that claims to protect it and extend its life. We all know scale is damaging, soft water is corrosive...you just can’t win. This product coats the heating element with a thermally conductive metallized (sintered) polymer. This coating is attracted by the hot element and fixes permanently to it after around 30 minutes. It’s much more “slippery” and scale build-up is reduced by around 90%. It’s a one time treatment and does not need to be repeated. Totally food safe although they recommend a thorough flushing of the boiler after treatment. Full instructions for use are provided.
The manufacturer issues a voucher with this product and will send you a replacement heating element if yours fails within 10 years of treatment, for any reason, apart from running with an empty boiler! What have you got to loose?

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