Thanks for the advice, so the consensus seems to be stick with a cylinder rather than a combi, but replace the thermal store with something newer. Anything I should be looking at superficially when getting a new cylinder?
Also is there any mileage in having a chemical flush rather than power...
So I've got a bit of a conundrum. I've recently moved into a new house and have inherited a system which really isn't performing the way i'd like it too.
The system has a gledhill torrent thermal store which is roughly 11 years old. I've also got a Worcester Bosch Greenstar RI boiler with a...