What could be the cause of kettling in *both* the central heating and the hot water? It started all of a sudden (not a gradual increase), a few days after a radiator was replaced and the boiler serviced.
It seems hard to believe that both the CH and hot water pipework in the boiler have become gunged up at the same time.
I have a Worcester Bosch 28 Si II combi which had run silently for 9 years.
It seems hard to believe that both the CH and hot water pipework in the boiler have become gunged up at the same time.
I have a Worcester Bosch 28 Si II combi which had run silently for 9 years.