Fernox F2 Boiler Noise Silencer is a specialist treatment that reduces boiler noise and kettling caused by scale deposits inside heating systems. By improving heat transfer, it helps calm noisy boilers quickly. As a result, it supports smoother operation while you plan further maintenance if needed.
If your boiler rumbles, bangs, or makes kettling sounds, scale build-up often causes the issue. These deposits create hot spots inside the heat exchanger. Therefore, treating the system water with a purpose-made product like Fernox F2 can quickly reduce noise and restore calmer performance.
What Is Fernox F2 Boiler Noise Silencer?
Fernox F2 is a liquid treatment that targets the symptoms of boiler noise and kettling. It works with all boiler types, including combi boilers and systems containing aluminium components. As a result, it suits a wide range of domestic central heating systems.
Fernox also confirms that installers can leave the product in the system permanently. This provides ongoing support against recurring boiler noise without disrupting normal operation.
What Causes Boiler Noise and Kettling?
Scale deposits commonly cause boiler noise and kettling. These deposits restrict heat transfer inside the heat exchanger. When heat cannot move away evenly, localised hot spots develop. This process creates the familiar rattling or “kettle” sound.
Treating the symptoms early helps restore quieter boiler operation. However, Fernox F2 does not replace full system cleaning where sludge or debris exists. For this reason, Fernox recommends cleaning the system first and then adding an inhibitor to protect long-term performance.
Key Features of Fernox F2 Boiler Noise Silencer
Reduces Boiler and System Noise
Fernox F2 actively reduces boiler noise and kettling. As a result, many systems experience noticeably quieter operation after treatment.
Improves Heat Transfer Efficiency
Fernox F2 improves heat transfer inside the boiler. Consequently, the system runs more smoothly and delivers more consistent heating performance.
Compatible with All Boiler Types
Fernox F2 works with all boiler types and common heating materials, including aluminium. Therefore, it offers a safe and widely compatible solution for domestic heating systems.
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.









