Sentinel X200 Boiler Descaler
Our boiler was tripping the thermal cutout and was only able to run a 15 minute on 15 minute off duty cycle because of it. I suspected it was choked with limescale and wasn't able to transfer the heat properly so I put a litre of this into the six radiator system and left it to work.
At first it seemed to have had little effect but after a few weeks it had really made a difference, now the system can run for a good hour and a half without issue.
Not exactly cheap but well worth it for the ease of results.
28 Feb 2015
does the job !!
I have used this many times, it is very good at reducing kettling noises in older boilers
3 Jan 2015
Worked a treat
My 20 +yr old boiler was kettling like mad - probably because recent system drain down and refill brought in loads of fresh hard water . Wasnt convinced that this would do any good but noticeable improvement after just 4 or 5 days. After about 2 weeks its now really quiet. Â£19 well spent.
17 Dec 2014
Used on my old system and it's back to full working order. I did use two litres to make sure, for Â£38 it was a cheap cure.
8 Nov 2014