A single SP2B Shower Power Booster Pump is all that is needed for most people for boosting a single shower or tap or shower in a home with an unvented water cylinder. The solution you need may be to boost or protect a single tap or shower or you may prefer to boost the hot water and/or cold water in the whole house.
The design of a Shower Power Booster allows the pump to fitted on the hot or the cold and anywhere in your system at any angle and at any distance from your hot water cylinder.