Boiler Servicing, General Boiler info

Do I have to have a magnetic boiler filter installed?

Fitting a filter is considered Best Practice when installing a new boiler and is already included in a document called BS7593:2019 – Code of practice for the preparation, commissioning and maintenance of domestic central heating and cooling water systems.

However, on 15 June 2022, Part L of the Building Regulations is changing.  Part L is the section that deals with heating in the home.  The Best Practice document is becoming a requirement of the Building Regulations, and when a new boiler is fitted, the installer must carry out the following steps:

  1. Clean: carry out a system clean and flush
  2. Filter: fit an in-line filter, find out more about filters here
  3. Inhibit: add scale and corrosion inhibitor to the heating system. Low temperature systems must also include a biocide
  4. Maintain: at every annual boiler service they must also clean and service the filter and check the levels of inhibitor in the system water

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