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
Quality product used on its own with a power flush or added to the system with X100, brings a scaled/blocked boiler back to life ( unless the boiler is beyond repair), I personally wont use any other product.
17 May 2014
The product is ok but you need to be patient as it take a few weeks to work found the rapid dose to be easier to use.
1 Apr 2013