Is my water system suitable for a mixer shower?

Mixer showers manual or thermostatic, are compatible with the following plumbing systems,

• Gravity-fed hot and cold supplies (Tank in loft and hot water cylinder in airing cupboard or both in loft)
• Fully-modulating combination boiler / gas water heater
• Mains pressurised unvented system
• Mains pressurised thermal store
• Gravity-fed hot and cold supplies via remote pump

if you have an existing gravity fed shower you can add a pump for a better preforming shower.