Unvented Cylinders
Since you do not rely on gravity to move the hot water around, the unvented cylinder can be located anywhere in your property, removing the need for a cold water tank in the loft.This removes the potential freezing issue during our long cold winter periods.
Unvented cylinders are commonly used in properties enlarging/adding more wet-rooms/en-suites. This means there is a greater need for hot water. The unvented cylinder offers this and with this in place you can be assured of optimum hot water delivery and performance, even if there is a long draw off.
It also creates much less operating noise as there is no water filling a cold water storage tank or shower pump to run.