We recommend using system chemicals to clean and protect your central heating system and your radiators. When your central heating system is serviced annually, it is advised to put a system cleanser in your system and run it through as per the instructions prior to draining down. This will remove any sludge and dirt build up and allow your radiators to perform more efficiently. Read more on how to correctly maintain and bleed your radiators.
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17 Items
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  1. Fernox F3 E Xpress Cleaner - 400ml
    805 Available for Delivery
    £49.86 Incl. VAT
  2. Fernox F4 E Xpress Leak Sealer - 400ml
    464 Available for Delivery
    £50.03 Incl. VAT
  3. Fernox F1 E Xpress Protector - 400ml
    280 Available for Delivery
    £47.02 Incl. VAT
  4. Fernox F9 Express Protector & Filter Fluid - 400ml
    93 Available for Delivery
    £46.67 Incl. VAT
  5. Fernox F2 Express Silencer
    1087 Available for Delivery
    £16.18 Incl. VAT
  6. Fernox F2 Super Concentrate Boiler Noise Reducer 290ml
    15 Available for Delivery
    £20.30 Incl. VAT
  7. Fernox F3 Super Concentrate Cleaner 290ml
    4 Available for Delivery
    £19.14 Incl. VAT
  8. Fernox F4 Super Concentrate Central Heating Leak Sealer 290ml
    36 Available for Delivery
    £22.63 Incl. VAT
  9. Fernox F1 Protector 500ml
    551 Available for Delivery
    £41.64 Incl. VAT
  10. Fernox F2 Noise Silencer 500ml
    587 Available for Delivery
    £44.35 Incl. VAT
  11. Fernox F3 Cleaner 500ml
    788 Available for Delivery
    £37.43 Incl. VAT
  12. Fernox F4 LSI Leak Sealer 500ml
    226 Available for Delivery
    £38.77 Incl. VAT
  13. Fernox System Water Test
    Out of Stock
    £6.67 Incl. VAT
    Out of stock
  14. Fernox Alphi 11 Antifreeze Protector
    153 Available for Delivery
    £53.75 Incl. VAT
  15. Fernox System Neutraliser 2KG
    266 Available for Delivery
    £33.05 Incl. VAT
  16. Fernox DS-3 Limescale Remover (2KG)
    74 Available for Delivery
    £49.90 Incl. VAT
  17. Fernox LS-X Leak Sealer 50ml
    5465 Available for Delivery
    £12.90 Incl. VAT
17 Items
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