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Zep Commercial® Central Heating Cleaner – 1L

A powerful formulation specifically designed to remove debris and sludge from your central heating system. The heavy-duty formulation eliminates cold spots from radiators. The formula also contains special corrosion inhibitors which help to prevent the build-up of sludge.

  • Can clean a system of up to 12 radiators.
  • Helps improve system efficiency.

  • 1 Litre of Zep Commercial® Central Heating cleaner will treat a typical domestic system of up to 12 radiators.
  • Drain some water from the system, then pour the solution either directly into a radiator or into the central heating header tank.
  • Circulate at least overnight or for heavier soiling, the solution can be left in the system for several days.
  • Drain fully and flush through each drain point until the water runs clear.
  • Refill the system and add a suitable inhibitor.


  • Do not use in Primatic systems.

Download MSDS Information