Second problem is, the tank is atmospherically open, leading to potential contamination and stagnation issues. Particularly as the location tended to be quite warm most of the year.
HWCH were aproached for a better solution, even though the original had only been in place for a few years.
Break tank, and pumps, replaced with twin accumulatorsWhy not view our main page about our boiler installations in Surrey which includes lots of other interesting case studies?