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Fernox F7 Biocide - 200ml

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Fernox F7 Biocide 200ml prevents bacterial growth, sludge, and blockages in heating and underfloor...

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Full details

The Fernox F7 Biocide (200ml) is designed for homeowners and heating engineers to prevent bacterial growth, sludge, and blockages in central and underfloor heating systems, ensuring optimal efficiency and preventing costly breakdowns. While highly effective, it should be used in conjunction with corrosion inhibitors like Fernox Protector F1 for complete system protection. This powerful biocide offers fast-acting disinfection and preservation, maintaining clean system water and improving circulation for consistent heating performance.

All features

Model Part Number62393
BrandFernox

Extended Product Information

FAQs

How often should I use Fernox F7 Biocide?

The frequency of use depends on the system. For general maintenance and prevention, it's often used during annual system servicing or when topping up the system. For systems with known issues, follow professional advice or product instructions for initial treatment and subsequent maintenance.

Can I use Fernox F7 Biocide with other brands of system inhibitors?

Fernox F7 Biocide is specifically designed to be compatible with Fernox Protectors. While it may be compatible with other brands, it is recommended to use it with Fernox inhibitors for guaranteed performance and system safety.

What is the shelf life of Fernox F7 Biocide?

When stored correctly in its original container, in a cool, dry place, Fernox F7 Biocide typically has a shelf life of several years. Refer to the product packaging for specific expiry dates.

How do I know if my heating system needs a biocide treatment?

Signs include reduced heating efficiency, increased noise, blockages, and visible slime or deposits in feed and expansion cisterns. Low-temperature systems, like underfloor heating, are more susceptible to bacterial growth.

Does Fernox F7 Biocide prevent corrosion?

No, Fernox F7 Biocide primarily targets bacterial and fungal growth. For protection against corrosion and scale, it must be used in conjunction with a suitable Fernox system inhibitor, such as Protector F1.

What is the difference between a biocide and a system inhibitor?

A biocide (like F7) kills microorganisms that cause fouling and blockages. A system inhibitor (like F1) prevents corrosion and scale formation within the heating system's metal components.

Can I use this product in a domestic hot water system?

Fernox F7 Biocide is designed for closed-loop heating and chilled systems. It is not intended for use in domestic hot water systems.

Troubleshooting

System performance does not improve after 24 hours.

Ensure the correct dosage was used for the system volume and that the system has been circulating adequately. For severe contamination, a second application may be necessary, or professional advice should be sought.

Visible jelly-like deposits persist in the feed and expansion cistern.

The existing deposits may be extensive. Try to manually remove as much as possible and then re-apply Fernox F7 Biocide. Consider a full system flush if the problem is severe and persistent.

Low-temperature system is still not heating effectively.

Check that the biocide is circulating properly. Ensure the dosage is correct for the system size. If issues persist, the problem might be due to factors other than microbial growth, such as pump performance or thermostat settings.

Pros and Cons

Pros

  • Effectively prevents microbial growth and associated system blockages.
  • Fast-acting formula provides quick results.
  • Dual-action biocide offers comprehensive protection.
  • Easy to apply in various system configurations.
  • Helps maintain heating system efficiency and performance.
  • Suitable for low-temperature and underfloor heating systems.

Cons

  • Requires use in conjunction with corrosion inhibitors for full system protection.
  • Specific dosage required for optimal performance based on system volume.
  • Not a standalone solution for scale or corrosion.
  • May require professional assessment for severe contamination issues.

Setup, Compatibility & Care

Setup and Application:

  1. Determine System Volume: Calculate the total volume of water in your heating system. A 200ml bottle of Fernox F7 Biocide treats up to 150 litres of system water.
  2. Dosage: For underfloor heating systems, a 200ml bottle can treat up to 250m².
  3. Addition: Add the required amount of F7 Biocide directly into the system. This can be done via:
  • A radiator valve
  • A towel rail
  • The system's filling loop
  • An inline system filter
  1. Circulation: Ensure the heating system is running to circulate the biocide throughout the water.

Compatibility:

  • Fernox F7 Biocide is compatible with all Fernox Protectors, such as Fernox Protector F1 and Antifreeze Protector Alphi-11. It is recommended to use F7 Biocide in conjunction with these products for complete system protection against corrosion and scale.
  • Suitable for use in central heating, underfloor heating, and chilled systems.

Care and Maintenance:

  • Store the product in a cool, dry place away from direct sunlight.
  • Keep out of reach of children and pets.
  • Follow the recommended dosage to avoid overuse.
  • Regularly check system performance to monitor effectiveness.
  • For long-term protection, consider periodic re-application as per system manufacturer recommendations or professional advice.