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    You are here: Home1 / Shop2 / Water Treatment3 / Inhibitors & Protectors4 / Fernox F7 Biocide | Bacterial Control for Heating Systems 200ml
    “Fernox F9 Express | Protector Filter Fluid Cleaner 400ml” has been added to your basket. View basket
    Fernox Biocide F7 liquid 200 ml biocide for central heating systems in a white bottle with white cap and purple‑yellow label.

    Fernox F7 Biocide | Bacterial Control for Heating Systems 200ml

    £31.48 Inc Vat

    Fernox F7 Biocide is a powerful treatment designed to control bacteria, fungi, and algae in central heating systems. It prevents biological contamination that leads to corrosion and blockages. Ideal for use alongside system cleaners and inhibitors.

    20 in stock

    SKU: FER-62393 Category: Inhibitors & Protectors Brand: Fernox Water Treatment
    • Description
    • Additional information
    • Delivery

    The Fernox F7 Biocide provides effective control of bacteria, fungi, and algae in central heating systems. These microorganisms can create slime and biofilm, which restrict water flow and accelerate corrosion. Therefore, regular treatment with Fernox F7 helps maintain clean and efficient systems.

    Biological contamination often develops in low-temperature or underfloor heating circuits. As a result, Fernox F7 Biocide plays a key role in protecting modern heating installations.

    What Is Fernox F7 Biocide?

    Fernox Biocide is a specialist heating system treatment formulated to kill bacteria and algae. It targets biological growth that standard inhibitors do not control.

    Unlike general disinfectants, Fernox F7 is designed specifically for closed heating systems. Consequently, it delivers effective microbial control without harming system materials.

    How Fernox F7 Biocide Works

    Once added to the system, Fernox F7 circulates with the heating water. It breaks down biofilm and prevents microorganisms from multiplying. Therefore, the system remains free from sludge-forming biological growth.

    Because the biocide works throughout the circuit, it protects pipework, radiators, pumps, and underfloor heating loops.

    Controls Bacteria and Algae

    Fernox Biocide eliminates bacteria, fungi, and algae that cause slime and contamination. As a result, it reduces the risk of blockages and efficiency loss.

    Prevents Slime and System Blockages

    Biological growth can trap debris and restrict circulation. Therefore, Fernox F7 helps keep systems clean and flowing freely.

    Next Working Day Delivery: Yes, we hold all our products in stock at our 7000 sq ft Nottingham warehouse and at our 3000 sq ft warehouse in Market Harborough and use DPD for a tracked next-day delivery.

    Collection Available: You can always collect from our Nottingham location and help yourself to a free tea and coffee.

    Fernox Water Treatment

    Additional information

    Weight 0.25 kg

    Delivery

    Delivery costs to UK mainland

    Standard UK Delivery: £6.98 next working day delivery.

    Premium Delivery: before 12pm: £20.28

    Saturday Delivery: £28.62

    Highlands & Channel Isles: variable, please use the delivery calculator on the checkout page.

    For more details see our Delivery information here.

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    Why choose Kudos Trading?

    Kudos Trading has been supplying the UK with underfloor heating since 2001.

    As one of the UK’s longest-established specialists, we combine decades of experience with a personal, friendly service from our Nottinghamshire-based team.

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    Contact Us

    Floor Heating Systems Ltd, Fairway Court, Wigwam Lane, Hucknall, NG15 7TA

    0115 9632314

    sales@kudostrading.co.uk

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