For some time now my Ideal Elan gas boiler has been 'kettling'. It started two weeks after having a new gas valve fitted. Since then we have had Sentinel X200 put in the system, two treatments, and...
I have an Ideal Elan RS 55 Gas boiler in my house. It's started 'kettling'. I have put 1l of sentinel xt200 in the header tank 2 weeks ago and had the 'low thermostat' replaced. After 15mins of being...
