DIY Doctor UK DIY Forums

I want to replace my central heating boiler for a more efficient condensing boiler. My current system has a conventional boiler and is vented. The hot water is heated from the boiler via pumped water to an indirect tank vented on the domestic side. I need to keep the hot water storage tank due to the volume of hot water needed by the family – number of bathrooms/showers and hence a combi is not really suitable.

I am considering having a system boiler installed. Apart from creating a sealed system on the central heating side, could I still use the same indirect hot water storage tank or would that need replacing also.