FERNOX F1 Central Heating Protector.
Protects against corrosion and scale in mixed metal central heating systems to prevent breakdown and premature boiler failure. Inhibits scale, corrosion and sludge. High performance, non-toxic and environmentally-friendly. Stops frequent venting of radiators and prevents cold spots. Reduces maintenance costs and maintains energy efficiency. One bottle treats a 130Ltr system, up to 16 radiators, or 250m² of underfloor heating. Ideal for new and existing systems.