Flomasta Central Heating Noise Reducer / Silencer 500ml Product Code: 9456R

Reduces boiler noise, eliminates kittling and restores heat efficiency. Suitable for all boiler types, including aluminium heat exchangers. Compatible with No Nonsense products. 500ml treats 100Ltr.


  • Central Heating Systems
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Safety Data Sheet
Additional Information
Technical Specification
  • Brand : Flomasta
  • Product Type : Central Heating Noise Reducer / Silencer
  • Volume : 500 ml
  • Model No : 0654
  • Pack Size : 1
  • Suitable System : Central Heating Systems
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

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€9.75 Incl. 23% VAT

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Flomasta Central Heating Noise Reducer / Silencer 500ml is rated 4.4 out of 5 by 5.
Rated 5 out of 5 by from It's all so quite. We had an issue with the heating system knocking and creaking every time the central heating fired up. One treatment of Flomasta in to the header tank and the noise subsided straight away. After a couple of weeks the heating system is now much quieter by around 90%. Excellent result.
Date published: 2019-02-17
Rated 5 out of 5 by from Works Well Excellent product. Put in in the CH System, via the filter tank and it worked within 15 mins. Hardly know the CH is now running, its so silent.
Date published: 2019-02-06
Rated 5 out of 5 by from It worked straight away! Emptied this (via a funnel and tube I had) directly into the feed pipe in my header tank. Cured the "noisy kettle" sounds in my boiler straight away. Been running for two weeks with no reoccurence of wheezing sounds.
Date published: 2019-01-20
Rated 5 out of 5 by from Boiler status - peaceful Boiler noise levels around 50 dB. Sounds like a mouse house party. Used this product in conjunction with mag filter, cleaner & inhibitor. Dosed my C/H system with cleaner and ran for two weeks. Drained and fitted mag filter and ran combi boiler for a couple of days with just the inhibitor. This reduced boiler noise slightly. Ran system for two days with product and measured noise levels around 35 dB. Nearly all the mouse sweeks have gone..... Monitoring system for the next few days. As my combi boiler is within a fully stocked airing cupboard, sound absorption is good. No mice were injured as a result of this exercise. Pleased with results.
Date published: 2017-11-07
Rated 2 out of 5 by from Performance This "stuff" has been in my C/H system for 40 hours, it's still banging away.
Date published: 2017-01-20
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