It is imperative to keep your system clean in order to prolong the life of your system. Over the years debris and rust can build up creating sludge which can block and damage your boiler and its parts. (see power flushing). We recommend with all boiler installation and existing boilers to fit a magnetic filter which is positioned on the return pipe to the boiler. This magnetic filter stops all debris, including non-metallic, from entering your boiler and its parts.