Concentrated Boiler Noise Silencer
Targeted treatment for boiler kettling & noise reduction
Vitcas Concentrated Boiler Noise Silencer is a high-strength treatment additive engineered to reduce boiler noise and restore quiet operation in fully indirect central heating systems. Designed for both commercial and domestic use, the product disperses micro-scale deposits and magnetite sludge that cause kettling, thermal hotspots, and flow turbulence in heat exchangers and pipework.
The concentrated formula allows for full system treatment using a compact dosing volume, making it ideal for professional service engineers and industrial maintenance teams. One tube treats up to 100 litres of system water (equivalent to 10 single radiators), reducing handling time and storage requirements.
Advanced scale dispersion and boiler noise control
The silencer neutralises the underlying causes of localised boiling-namely, limescale, magnetite, and micro-bubbles-which contribute to boiler noise and efficiency losses. It works by breaking down these fouling agents, improving thermal conductivity across metallic surfaces, and restoring uniform temperature gradients.
The formulation is non-aggressive, compatible with all system materials, and remains in the system for ongoing protection. It is compatible with all other Vitcas central heating additives, including System Inhibitor, System Cleaner, and Internal Leak Sealer.
Key features:
- Concentrated formula - One tube treats 100 litres (approx. 10 radiators)
- Eliminates kettling - Disperses magnetite sludge and scale in heat exchangers
- Long-term performance - Designed to remain in the system permanently
- No need for drainage - Add to the live system with no disruption
- Compatible with all Vitcas additives - Use alongside Inhibitor, Cleaner, and Leak Sealer
- Protects all materials - Safe for aluminium, copper, brass, steel, and plastics
- Commercial and domestic use - Suitable for condensing and traditional boilers

Application Guidelines:
- Switch off heating system and allow to cool
- Shake product thoroughly
- Dose via filling loop, radiator, or dosing pot
- Restore circulation and operate system under normal conditions
- Leave in the system - no flushing required
- Use in conjunction with other Vitcas water treatment products for full protection
Note: For use in fully indirect systems only. Do not use in primatic or single-feed cylinders.