Fernox Cleaner F3 265ml is a versatile and swift-acting pH neutral solution, expertly formulated to cleanse central heating systems by removing stubborn sludge, limescale, and installation debris. Designed to restore optimal heating efficiency, this cleaner eliminates or significantly reduces annoying boiler noise.

Ideal for both new installations and existing systems, it treats an average-sized home with up to 12 radiators, providing comprehensive coverage for 190sqm of underfloor heating. Conveniently dosed via the Fernox TF1 Filter, its compatible with all metals, including aluminium, ensuring universal application. Its compact packaging not only minimises waste but also offers a reduced environmental impact, aligning with BS 7593:2019 standards for system pre-commissioning.

• Treats systems up to 100L, 12 radiators, or 190sqm of underfloor heating
• Compact 265ml size reduces packaging and waste
• Can be dosed via Fernox TF1 Filter for easy application
• Effectively removes sludge, limescale, and debris
• Boosts efficiency in new and existing heating systems
• Safe for all common systems, including those with aluminium
• Meets BS 7593:2019 standards for new system commissioning