ADEY MagnaClean Professional2 22mm Magnetic Filter

In-Depth Look

The ADEY MagnaClean Professional2 is so widely specified that it has almost become a generic term: heating engineers often refer to any magnetic filter as “a MagnaClean.” Its dominance of the UK market is built on a simple promise: it works, it is easy to service, and it protects the boiler warranty.

How It Works

The Professional2 uses a powerful neodymium magnet with 360-degree coverage to attract and hold magnetite sludge as system water flows through the filter body. Magnetite (black iron oxide created by corrosion inside radiators and pipework) is the primary cause of boiler heat exchanger failure, pump seizure and valve sticking.

Servicing

The quick-clean design is what sets the MagnaClean apart in daily use. During an annual boiler service, the engineer simply closes the isolation valves, removes the magnet, wipes off the collected sludge, and replaces it. The whole process takes under two minutes and produces no mess, a significant advantage over filters that require partial draining.

Verdict

The ADEY MagnaClean Professional2 is the default choice for UK boiler installations, and for good reason. It does one job exceptionally well, it is fast to service, and the 10-year warranty provides long-term peace of mind. For heating engineers, it is the filter that keeps callbacks to a minimum.

How It Compares

The magnetic filter market splits broadly into ADEY’s MagnaClean range, Fernox’s TF1 range, and a handful of budget alternatives. The Professional2 and the Fernox TF1 Compact are the two most commonly specified by heating engineers, and in practice the difference between them is smaller than either manufacturer’s marketing suggests: both use strong neodymium magnets and both service in under two minutes. Where the Professional2 tends to win is brand recognition with boiler manufacturers for warranty compliance, since it’s the filter most frequently named in manufacturer installation instructions. Budget magnetic filters exist at roughly half the price, but generally use weaker magnets with less complete coverage, meaning finer magnetite particles can pass through uncaptured. A filter is only doing its job if it’s actually catching the sludge.

Common Questions

Do I need to add a chemical inhibitor as well as a magnetic filter? Yes, a magnetic filter only captures magnetic debris (magnetite), not the full range of contamination in a heating system. Most heating engineers fit the filter alongside a chemical inhibitor such as Fernox F1, and use a system cleaner like Fernox F3 at the point of installation to deal with existing sludge first.

How often does the filter need servicing? ADEY recommends servicing at every annual boiler service as a minimum, and the 10-year warranty is generally conditional on this being done and recorded. Systems with a history of sludge problems may benefit from more frequent checks in the first year or two after a powerflush.

Will fitting this filter void my boiler warranty if I don’t register it? Most boiler manufacturers require a magnetic filter to be fitted for the boiler’s own warranty to be valid, but the filter’s own 10-year warranty is a separate registration with ADEY. It’s worth registering both the boiler and the filter promptly after installation to avoid any warranty disputes later.