First, Fernox recommends cleaning your system with our Fernox Cleaner F3 and a power flushing machine.
Keeping your system clean is crucial to avoid the buildup of sludge, debris, and scale from existing systems.
This process restores heating efficiency and eliminates boiler noise. For new installations, pre-commission cleaning according to BS 7593:2019 removes flux residues and other debris, helping to extend the system’s lifespan. It is essential to clean all systems before installing a boiler, including during boiler replacements.