When used in conjunction with Cleaner F3 gas savings of up to 15% can be achieved every time you heat your room.

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...

Fernox Central heating Protector 4L.This corrosion proofer protects against corrosion and limescale formation to maintain system efficiency and is suitable for mixed metal domestic central heating systems and combi boilers.