Sentinel Boiler Noise Reducer 1L

By Sentinel Product code: 75576 Pack size: Each

£14.98 Exc. VAT £12.48

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

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery – £5.00 or FREE for orders over £25

  • Order before 9pm Monday to Thursday for next business day delivery
  • Order Friday to Sunday before 6pm for Monday delivery
  • Orders placed after Sunday at 6pm will be delivered the following Tuesday
Pre-12pm Delivery – £10.00 or £5.00 for orders over £25, to arrive before 12pm on the scheduled days above

Saturday Delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 6pm Friday)

Sunday delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 4pm Saturday)

Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page Items over 30kg can only be delivered next Business Day Mon-Fri. Orders placed after 9pm Thursday will be delivered the following Monday
More about Delivery & Returns
Click & Collect details

Collection Details

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

We advise that you check your local branch is open on the branch locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the branch you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

Please wait for your text or email before coming to collect it and be aware that we will still have health & safety measures in place, so we ask that you observe the branch guidelines.

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.

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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