The MagnaClean Professional3 Sense can be installed anywhere before the boiler. To achieve the best level of protection, it is recommended that the filter is fitted after the last radiator and before the boiler. This also ensures a system flush can be carried out using a MagnaCleanse
on the return. In an open vented system the filter should be placed at any point after the water tank. Combi or sealed systems can have it installed anywhere before the boiler.