A non-toxic, concentrated heat transfer fluid for Air and Ground Source Heat Pumps and underfloor heating systems. This product is designed to protect against corrosion and limescale, as well as frost protection from -4 to -14°C.
Dilute before use using mains water. In order to ensure adequate corrosion and biocidal protection, the minimum ‘in-use’ concentration of the product is 10%. Maximum ‘in-use’ concentration is 30%. Upon dilution Fernox HP-5c will provide frost protection according to the table below.
Concentration 10% 20% 30%
Frost Protection -4°C -9°C -14°C
Frost protection levels can be checked using a Fernox Refractometer. Existing heating systems should be cleaned of sludge and limescale deposits with a suitable Fernox Cleaner before adding Fernox HP-5c.
Fernox HP-5c is supplied in 10 litre drums.
Keep out of reach of children. Do not mix with other chemicals. For further information, please consult the Safety Data Sheet (SDS).
Composition: An aqueous solution of monopropylene glycol with specifically formulated inhibitors and stabilisers.
Appearance: Blue liquid
Single Unit Dimensions
Single Unit Barcode
Outer Carton Dimensions
Outer Carton Barcode (ITF)
205 × 230 × 310 mm
310 x 230 x 205 mm