Fernox
Fernox Central Heating Leak Sealer F4 Express
Fernox Central Heating Leak Sealer F4 Express
SKU:374825
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- Free shipping for orders over £100. See shipping policy for restrictions
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Shipping
Free delivery for orders over £100 within UK mainland. This does not apply to large products (such as those above 1m of length), heavy products (including aggregates, compost and wood logs) and fragile products (such as ceramics, shower enclosures etc.). See shipping policy for restrictions.
Free local delivery above £50 and £5 charge for delivery under £50 within a 3 mile radius and £7 up to 6 mile radius.
Standard Shipping - United Kingdom (UK Mainland Excluding Northern Ireland)
- Lighter items (under 1kg) - £4 and free for orders over £100
- Smaller items (1 - 10kg) - £7 and free for orders over £100
- Larger items (10kg - 30kg) - £15 and free for orders over £350
- Bulky items (30kg and above) - £35 with minimum order value of £100
Express Shipping - United Kingdom (UK Mainland Excluding Northern Ireland)
- Lighter items (under 1kg) - £7 and free for orders over £100
- Smaller items (1 - 10kg) - £10 and free for orders over £100
- Larger items (10kg - 30kg) - £20 and free for orders over £350
Standard Shipping (Northern Ireland and Scottish Islands & Highlands) 2 to 7 business days
- Lighter items (under 1kg) - £7
- Smaller items (1 - 10kg) - £15
- Larger items (10kg - 30kg) - £25
- Bulky items (30kg and above) - £35 with minimum order value of £100
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Fernox Central Heating Leak Sealer F4 Express – 400ml
The Fernox Central Heating Leak Sealer F4 Express is a highly effective and convenient solution for sealing minor leaks and weeps in central heating systems. Designed for ease of use, this leak sealer can be quickly administered without creating mess or requiring complex procedures. It works efficiently to detect and seal small leaks, preventing costly repairs and ensuring optimal system performance.
With its environmentally friendly formulation, the Fernox F4 Express is non-toxic and safe for use in domestic and commercial heating systems. The product is fully compatible with all Fernox Protectors, ensuring seamless integration into your existing maintenance routine.
Key Features
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Quick & Convenient Application
- Doses into the system in just 30 seconds, saving time and effort.
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Mess-Free & Simple to Use
- Can be applied easily via a radiator adapter or filling loop (supplied).
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Advanced Leak-Sealing Formula
- Seeks out and seals most minor weeps and leaks in the system.
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Prevents Costly Repairs
- Avoids the need for draining down the system or carrying out expensive repairs.
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Safe & Environmentally Friendly
- Non-toxic formulation, making it safe for both users and the environment.
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Compatible with All Fernox Protectors
- Works seamlessly with other Fernox products for enhanced system protection.
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Pump & Vent Safe
- Does not cause blockages in pumps, air vents, or other components of the system.
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100% Recyclable Can
- Environmentally responsible packaging for sustainable usage.
Specifications
| Attribute | Details |
|---|---|
| Product Name | Fernox Central Heating Leak Sealer F4 Express |
| Volume | 400ml |
| Boxed Weight | 300g |
| Application Method | Radiator adapter or filling loop (supplied) |
| Country of Origin | Great Britain |
| Compatibility | Suitable for use with all Fernox Protectors |
| Safety | Non-toxic, does not block pumps or vents |
| Packaging | 100% recyclable |
Benefits
- Reduces Downtime & Disruptions – No need to drain the system for minor leak repairs.
- Saves Money – Prevents expensive call-outs and repairs.
- Extends System Lifespan – Helps maintain system integrity by preventing leaks from worsening.
- Eco-Friendly Choice – Safe, non-toxic formula with recyclable packaging.
- Quick & Efficient Fix – Seals leaks rapidly, reducing heat loss and improving energy efficiency.
Frequently Asked Questions (FAQs)
1. How long does it take for Fernox F4 Express to work?
- The product begins sealing leaks immediately upon circulation, with full effectiveness typically achieved within 24 hours.
2. Is Fernox F4 Express safe to use in all central heating systems?
- Yes, it is compatible with all Fernox Protectors and is safe for use in domestic and commercial systems.
3. Will this product block my pump or air vents?
- No, the formula is specifically designed not to cause blockages in pumps, vents, or other essential system components.
4. Do I need to drain my system before using this leak sealer?
- No, one of the key benefits of Fernox F4 Express is that it can be added without draining the system, making it a convenient and cost-effective solution.
5. How is the product applied?
- The leak sealer can be added via a radiator adapter or filling loop, both of which are supplied with the product.
6. Is Fernox F4 Express environmentally friendly?
- Yes, the formulation is non-toxic, and the packaging is 100% recyclable, making it an eco-conscious choice.
7. How much of the product should I use for my system?
- A 400ml can is sufficient for treating a typical domestic heating system (up to 130 liters or approximately 12 radiators).
Warranty Information
Fernox provides a manufacturer’s warranty ensuring the quality and performance of the Central Heating Leak Sealer F4 Express. If you experience any issues related to manufacturing defects, you may be eligible for a replacement or refund, subject to the terms and conditions outlined by Fernox. For further warranty details, refer to the packaging or contact the manufacturer directly.
Conclusion
The Fernox Central Heating Leak Sealer F4 Express – 400ml is an essential maintenance solution for preventing and repairing minor leaks in central heating systems. Its fast-acting, easy-to-use, and eco-friendly formulation makes it a top choice for homeowners and professionals alike. By eliminating the need for draining and reducing repair costs, this product offers a cost-effective and reliable way to keep your heating system running efficiently.
