Monday, March 13, 2017

Magnetic Filter Installation: Prolonging Boiler and Component Life

By Jeff Waldman
Waldman Plumbing & Heating
12 Essex St. Lynn, MA 01902

Fernox TF1 Magnetic Filter

This is a photo of a Fernox TF1 magnetic filter 4 weeks after installation of a brand new Viessmann CU3A boiler with copper baseboard radiation. The streak marks on the filter body show the filter was leaking from being loaded with debris it had removed from the system.

Magnetic Filter Disassembled

This photo shows the magnetite, sludge and debris that adhered to the magnet inside the TF1 filter. This is only a small portion of what was removed from the system, the rest remained inside the filter body. This is only 4 weeks after a new boiler installation. This sludge was not new- it was existing from the old system inside all of the radiators and piping.


You can see the thickness of the magnetite and sludge here- the width of the magnet is visible at the bottom of the photo. Without this magnetic filter, this sludge and debris would stay in the system forever and wreak havoc on all of the boiler components-especially the ferrous components (piping, valves, circulators). This sludge is good job security for heating technicians- it ensures we will have to be back often to replace leaking components on the system.

Water Quality

This bucket shows the water and sludge that was removed from the filter body alone. Again, this is after only 4 weeks of a brand new system. Imagine what the water quality is like after 1, 2 or 5 years. The filter is easily cleaned and serviced. We also treated this water with a special cleaner and protectant after this visit to start off with clean water. The protectant will stop the water from getting to this point in the first place.

To learn more about Fernox products, please visit our website