Mixer showers take water from both the hot and cold water supplies and blend water to reach the desired temperature. Ideal for homes with a plentiful supply of hot water. On gravity systems, a pump can be added to boost the performance
Electric Showers only take water from the mains cold water supply. When you have a shwoer, you don’t use up any stored hot water – so electric showers are ideal for families and households where there is a limited supply of hot water.
Power showers take water from the low pressure stored hot and cold water supplies. They mix the hot and cold to reach the desired temperature and then boost the flow of water from the shower using an integral pump to provide a more forceful spray. You should not use a power shower with a high pressure or mains pressure water system.