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Fernox

Fernox F3 Central Heating Cleaner

Fernox F3 Central Heating Cleaner

SKU:374823

Regular price €33,95 EUR
Regular price Sale price €33,95 EUR
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🚚 Delivery Information

We offer reliable delivery across the UK using trusted national couriers.

All delivery times are estimates and begin once your order has been dispatched. Orders are dispatched from the UK.

✅ Free UK Mainland Delivery

Free delivery is available on orders over £100 within the UK mainland, excluding certain large, heavy, or fragile items.

Free delivery does not apply to:

  • Oversized items (over 1m in length)
  • Heavy items (including aggregates, compost, and logs)
  • Fragile items (such as ceramics and shower enclosures)

These items may incur a delivery charge due to specialist handling requirements.

🇬🇧 Standard Delivery – UK Mainland

(Excludes Northern Ireland)

Estimated delivery: 7–10 working days

Item WeightCostUnder 1kg£4 (Free over £100)1–10kg£7 (Free over £100)10–30kg£15 (Free over £350)30kg+ (Bulky)£35 (Minimum order £100)

🌍 Northern Ireland, Scottish Highlands & Islands

Estimated delivery: 7–10 working days

Item WeightCostUnder 1kg£71–10kg£1510–30kg£2530kg+ (Bulky)£35 (Minimum order £100)

📦 Additional Information

  • Delivery costs are calculated at checkout
  • Orders are shipped using trusted UK couriers
  • Tracking information is provided once your order is dispatched
  • Delivery times may vary during peak periods

If you have any questions about delivery, please contact us before placing your order.

❓ Frequently Asked Questions

Q: Can I choose a delivery date?
A: At present, we are unable to offer timed or date-specific delivery.

Q: What happens if my item arrives damaged?
A: Please contact us within 48 hours of delivery and we’ll resolve the issue promptly.

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Fernox F3 Central Heating Cleaner – 500ml

The Fernox F3 Central Heating Cleaner – 500ml is a powerful yet non-hazardous solution designed to clean and maintain heating systems. This pH-neutral, universal cleaner is suitable for pre-commissioning new systems, ensuring compliance with BS7593:2006, as well as restoring efficiency in existing systems by removing sludge, limescale, and debris.

When used alongside Fernox Protector F1, it can improve heating performance and deliver up to 15% gas savings, making it an energy-efficient and cost-effective choice for homeowners and professionals. The formulation is compatible with all metals and materials used in central heating systems and can be used with all known powerflushing machines.


Key Features

  • Universal Pre-Commissioning Cleaner
    • Meets BS7593:2006 standards for cleaning new heating systems before use.
  • Restores Heating Efficiency
    • Removes sludge, limescale, and other debris, improving system performance.
  • Energy & Cost Savings
    • Works with Protector F1 to reduce gas consumption by up to 15%.
  • Safe & Easy to Use
    • The system can continue running normally during cleaning.
  • Powerflushing Compatible
    • Works with all known powerflushing machines for enhanced cleaning.
  • Non-Hazardous Formula
    • pH-neutral and COSHH-rated zero, making it safe for both users and the environment.
  • Multi-Metal Compatibility
    • Can be used with all metals and materials commonly found in heating systems.

Specifications

Attribute Details
Product Name Fernox F3 Central Heating Cleaner
Volume 500ml
Boxed Weight 500g
Application Method Direct system addition or powerflushing
Country of Origin Great Britain
Compatibility Suitable for all central heating systems
Energy Savings Up to 15% gas savings when used with Protector F1
Safety pH-neutral, non-hazardous, COSHH-rated zero

Benefits

  • Ensures Clean & Efficient Operation – Removes harmful deposits, restoring heating performance.
  • Prepares New Systems for Use – Complies with BS7593:2006 pre-commissioning standards.
  • Improves Energy Efficiency – Works with Protector F1 to reduce gas usage and lower energy bills.
  • Safe for All Heating Systems – Compatible with all metals and materials used in central heating.
  • Hassle-Free Application – The heating system can remain operational during the cleaning process.

Frequently Asked Questions (FAQs)

1. How does Fernox F3 Cleaner work?

  • It breaks down and removes sludge, limescale, and debris, restoring system efficiency.

2. How much Fernox F3 Cleaner should I use?

  • A 500ml bottle treats a typical domestic heating system (up to 130 liters or approximately 12 radiators).

3. Can I use this product in an existing heating system?

  • Yes, it is specifically designed to restore efficiency in existing systems by removing accumulated debris.

4. Do I need to turn off my heating system while using this cleaner?

  • No, the system can remain running normally during the cleaning process.

5. Is Fernox F3 Cleaner compatible with powerflushing?

  • Yes, it is suitable for use with all known powerflushing machines for a more thorough clean.

6. Is this product safe to handle?

  • Yes, Fernox F3 Cleaner is pH-neutral, non-hazardous, and COSHH-rated zero, making it safe for both users and the environment.

7. How long should I leave the cleaner in the system?

  • It should be circulated for at least one hour, but for heavily contaminated systems, it may be left in for up to a week before flushing out.

8. What should I do after using Fernox F3 Cleaner?

  • The system should be flushed thoroughly and then treated with Fernox Protector F1 to prevent future corrosion and scale build-up.

Warranty Information

Fernox guarantees the quality and performance of the F3 Central Heating Cleaner. If any manufacturing defects are found, you may be eligible for a replacement or refund, subject to Fernox’s warranty terms. For full details, refer to the product packaging or contact the manufacturer.


Conclusion

The Fernox F3 Central Heating Cleaner – 500ml is an essential maintenance solution for new and existing heating systems. With its powerful cleaning action, energy-saving potential, and non-hazardous formula, it ensures optimal performance, lower fuel bills, and extended system life. Easy to use and compatible with all central heating materials, it is a trusted choice for both professional and domestic use.