Sentinel Boiler Noise Reducer 1L

By Sentinel Product code: 75576 Pack size: Each

£14.98 Exc. VAT £12.48

Delivery Address
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Collection Address
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Product Details

Reduces boiler noise whilst simultaneously helping to restore boiler efficiency.

Technical Specification
Brand Sentinel
Safety Data Sheet click here
Volume (L) 1
Delivery details

Covid-19 Update

  • FREE Next Business Day delivery is available for orders over £25 for orders placed before 9pm Mon-Thur and before 6pm Sunday
  • Saturday and Sunday delivery is available for orders placed before 6pm on Friday for Saturday Delivery and 4pm Saturday for Sunday delivery. Items over 30kg can only be delivered next Business Day Mon-Fri. Orders placed after 9pm Thursday will be delivered the following Monday see here for details
  • Pre-12 delivery service is now available for weekday deliveries. Place your order before 9pm Mon-Thur for next business day delivery by 12pm. Orders placed after 9pm Thur and before 6pm Sunday will be delivered by 12pm Monday. UK mainland only
  • Once your order has been dispatched you will receive an invoice email with the courier details and your tracking number
  • Alternatively go to MyAccount, click on your Order History, click on the TRACK icon to link through to the carrier website and the tracking details for your delivery
  • Delivery direct from suppliers is available and specific delivery times will be displayed on the product page
Order Value: Under £25 Over £25 but less than £75 £75 & Over
Next Business Day Mon-Fri (order by 9pm Mon-Thur & Sun by 6pm) delivered before 6pm £5 Free Free
Pre-12 Delivery Mon-Fri (order by 9pm Mon-Thur & Sun by 6pm) delivered before 12pm next day £10 £5 £5
Remote areas standard delivery (2-4 days) £5 Free Free
Saturday Delivery (order by 6pm Friday) delivered before 6pm £10 £5 Free
Sunday Delivery (order by 4pm Saturday) delivered before 6pm £10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details

Covid 19 Update

Click & Collect

We are fully open and delighted to welcome our customers into our branches.

Our opening times are 7am-8pm Monday-Friday, 7am-7pm Saturday and 9-4pm Sunday

Our speedy 5 min Click and Collect service remains one of the safest ways to buy from us and minimises your time in store. Place your order at 7 days a week, and travel to store once your collection confirmation is received by email or text message.

Don’t forget your mobile number – Please ensure that your mobile number is added so that we can text you when your order is ready to collect.

Your items will be held at your selected Toolstation branch for 14 days, after which point your order will be put back to stock and refunded automatically.

Sentinel Boiler Noise Reducer 1L is rated 4.9 out of 5 by 25.
Rated 5 out of 5 by from Definitely try this for a noisy boiler! This stuff works great! was about to get a central heating engineer to give me a quote for a new boiler, but thought it was worth a try and very impressed after 4-5 days system was calming down 2 weeks i don't even know the boiler is on. chuffed to bits.
Date published: 2021-04-26
Rated 5 out of 5 by from Boiler noise fixed! Fast and efficient service - best price locally
Date published: 2021-04-05
Rated 5 out of 5 by from Great stuff I put this in a convectional twin boiler (non condensing) CH. This was really noisy and had already tried another product that you didn't leave in and it only worked for a few days. X200 has been in for a couple of months now and is still silent. Great stuff.
Date published: 2021-03-10
Rated 5 out of 5 by from Central heating additive. Have used before.Add to header tank, drain water from radiator and my system is quieter within a couple of hours.
Date published: 2021-03-06
Rated 5 out of 5 by from Noisy boiler Easy to add and so far seems to have worked!
Date published: 2021-02-24
Rated 5 out of 5 by from Very Effective Works brilliantly and instantly. Think carefully about how to introduce it into your system. I turned off the feed to the header tank, drained half a bucket from a radiator bleed valve to empty the header, added to the Sentinel to the header,then turned the feed back on to refill and bleed the system. Worked instantly,can't hear any noise from the system. I took the opportunity to thoroughly clean the header while it was drained.
Date published: 2021-02-21
Rated 5 out of 5 by from Sentinel Boiler Noise Reducer 1L great Sentinel Boiler Noise Reducer 1L
Date published: 2021-02-01
Rated 5 out of 5 by from Does exactly what it says on the label I don't usually write reviews but this Sentinel product is amazing. Our 20 year old boiler was keeping us awake at night with its banging and crashing (kettleing). I read up on what could be done and X200 had good reviews. So I tried it and the effect was almost immediate. It has all but eliminated the kettleing. For the lay person using this as a one-off I'd recommend deciding in advance how to introduce the fluid to the system as there are no intructions on the container. Reading up on it I found that tipping the product into the header tank is ineffective so I simply shut off one radiator at both ends then cracked open the joint to partially empty the rad into a roasting tin (fits under the joint). Then used a 30ml syringe with wide bore needle to 'inject' the X200 into the rad via the bleed screw hole.
Date published: 2020-11-15
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