MagnaClean filters are central heating filters which collect all the steel particles that float around your central heating system, which may eventualy cause blockages. We can supply and fit these from £160. We have been installing MagnaCleans for the past 8 years and find these to be the market leaders in central heating filters. These compact filters usually fit just under the boiler on the return pipe, so it can collect the particles before it gets into the boiler and causes any major damage to the boiler/system components. These are easily serviced, but please take your time and do with caution because if you get any of the sludge on to your carpet it is very hard to remove and will probably stain. Start by isolating the service valves(turning them quarter of a turn using the tool provided) and using the special tool provided to unscrew the top, once the top is loose fill a bucket with warm water, it is also better to wear some rubber gloves while doing this and put a dust sheet under the bucket and filter. Take the magnet out of the housing and turn the magnet upside down, then put the the magnet into the bucket and pull the plastic cover off the magnet(into the water in the bucket) and set the magnet down on a cloth wash the plastic cover and put back on the magnet, put back into the housing and tighten, turn isolation valves back on and bleed out the air using a radiator bleed key or small screwdriver, then check with some kitchen paper around all the joints for any leaks. these should be inspected within the first month of installation and on every annual boiler service.