Fernox F1 Central Heating Protector Superconcentrate

Fernox F1 Central Heating Protector Superconcentrate


Product Code: 56700

Ex Tax: £25.25

Fernox F1 Central Heating Protector Superconcentrate

  • Central Heating Protector F1 for mixed-metal domestic central heating systems
  • Protects against corrosion and limescale
  • Prevents boiler noise
  • Stops frequent venting of radiators
  • Extends system life
  • Prevents sticking pumps
  • Saves on fuel bills
  • Reduces maintenance costs
  • Maintains system efficiency
  • Prevents cold spots in radiators
  • Easily and quickly added via one of the radiators
  • Ideal for pressurised systems and combination boilers
  • Universal applicator included
  • Non toxic, environmentally friendly
  • Fernox Problem Solver

Product Uses

Fernox Superconcentrate Central Heating Protector F1 gives long term protection of domestic central heating systems against internal corrosion and limescale formation. It prevents corrosion of all metals found in these systems i.e. ferrous metals, copper and copper alloys and aluminium. It is suitable for all types of boiler, radiator and pipework systems. Fernox Superconcentrate Central Heating Protector F1 is compatible with all metals and materials commonly used in central heating systems.For continued long-term protection we recommend Protector F1 levels are checked regularly (annually). The concentration of the product can be easily measured on site using a Fernox Protector test kit.

Physical Properties

Colour:Pale yellow
Form:Viscous liquid
Odour:Faint. Aromatic
pH (soln):7.2 - 7.6
pH (conc):6.5
SG:1.24 @ 20°C

Application and Dosage

One pack (290 ml) will protect an average sized system (up to ten radiators) and is added via one of the radiators. A standard mastic gun is used to dose the Fernox Superconcentrate directly into a radiator air-vent using the special adapter supplied with the product. The entire process can be completed in less than five minutes. In single feed indirect cylinder, e.g. 'Primatic' or similar, potable water chemicals must be used.We recommend untreated or sludged systems are thoroughly cleansed and flushed in accordance with BS7593 and Benchmark using Fernox Restorer, before treating with Fernox Protector F1, as existing debris can damage the installation.

Packaging, Handling and Storage

Fernox Superconcentrate Central Heating Protector F1 is supplied in 290 ml cartridges with a universal applicator set. They are available as blister packs with Euro-hook or in boxes.Fernox Superconcentrate Central Heating Protector F1 is classified as non-hazardous, but as with all chemicals. Keep out of reach of children. In case of contact with eyes or skin, rinse immediately with plenty of water.

Normally same day dispatch


Hi – I am planning to have our central heating chemically cleansed.  Your leaflet about Fernox F3 has convinced me that would be ideal. However I have been successful in finding the Rinse test meter TDS. Do you stock this and what is the price? I would require 2cartridges of F3, 2 cartridges of F1 + the tester. Can you kindly give me a price for the lot including delivery to London


Thank you for your enquiry - Please find page link for the Fernox F3 Superconcentrate Cleanser
https://www.uk-plumbing.com/fernox-f3-cleanser-for-central-heating-systems-superconcentrate-p-42339.html and for the F1
https://www.uk-plumbing.com/fernox-f1-central-heating-protector-superconcentrate-p-42337.html  and also for the TDS Meter kit
Prices are inclusive of VAT and delivery cost £4.50.


Hello – I have an 18 month old heating system using a closed system with 23 radiators,some are aluminum, some steel. there is also a large area heated with under floor tubing. I am looking to top up the current multi metal protectorate. the current product is no longer produced (  Berner # 075818 )


Thank you for your enquiry - Please find product page link for the Fernox F1 Super Concentrate
which is suitable for sealed systems and can be simply injected using a caulking gun via one of the
radiator vents and is suitable for all metal radiator types and all pipework systems. You will require
2-3 of this product for the size of system that you have.
You can download the how to sheets etc. from