2. Does my filter need cleaning
Central heating

Does my boiler filter need cleaning?

The sludge that your magnetic filter collects will need to be removed because once the filter is filled up, it can’t catch any more debris.  It will still allow the water to pass through, but will not collect any more sludge. 

 

You can ask your installer to clean your filter at the same time as carrying out your annual boiler service. 

 

Some filters come with an app that can warn you when they filter needs to be cleaned, so that you can arrange for your installer to visit before it gets too full to work properly.

Related FAQs

Does my boiler filter need cleaning?

Your filter should be cleaned during your boiler’s annual service. This will prevent sludge building up in your system. Some filters come with an app that can warn you when they filter needs to be cleaned, so that you can arrange for your installer to visit before it gets too full.

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What is central heating sludge?

Central heating sludge is a substance that builds up in central heating pipes as a result of rusted and dissolved metal settling in the system.

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Do I have to have a magnetic boiler filter installed?

Having a magnetic filter installed is considered best practice when installing a new boiler, and your installer will be required to carry out a series of important steps to ensure their work is compliant with the Building Regulations in England and Wales. 

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What is a magnetic boiler filter?

A magnetic boiler filter is a small device that is installed into the pipework close to where the water goes back into a boiler. It is used to prevent the buildup of sludge within the pipework, which can cause the boiler to break down if left untreated. 

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