Electric showers take only a single cold water feed from the cold water supply. They heat the water by passing over a heating element inside the shower. The shower is ideal for families and households where there is a limited supply of hot water. Their performance relates to the kW output of the shower and the mains water pressure.
Mixer showers take water from both hot and cold water supplies. They mix the hot and cold to reach a desired temperature and can be used on any water system. They generally flow faster than electric showers and come with a manual or thermostatic valve. These showers are ideal for homes with a plentiful hot water supply.
If you have a low pressure gravity water system, you can make the flow more forceful by adding a pump.
Power showers take water from both the hot and cold stored water supplies. They mix the hot and cold to reach the desired temperature. They produce a more impressive spray force than mixer or electric showers, because an internal pump boosts the water flow. They are ideal for homes with a plentiful supply of hot water.
Not to be used on a mains water feed.
These showers are a single cold water feed electric shower that draws water from a storage tank; used in areas with low mains water pressure.
Not to be used on a mains water feed.
Shower pumps are used on stored water supplies to create an intense, fast-flowing power shower. They cannot be used on a mains cold water feed or combination boilers.
Digital showers are the newest form of showering. The shower control and the water mixer have digital intelligence built-in. They take water from both the hot and cold water supplies and mix the water accurately to reach the desired temperature. They are available in pumped or high pressure version. Digital showers are ideal for homes with a plentiful supply of hot water.
A shower valve with body jets on a single panel.
| Term | Definition |
|---|---|
| BI/Built In | Built In Valve Only |
| BIR | Built In Rigid: built in valve, rigid shower head. |
| BIV | Built In Variable: built in valve, variable shower head/riser kit. |
| BSM | Bath Shower Mixer: valve as a mixer on the bath taps. |
| ER | Exposed Rigid: exposed valve with rigid shower head. |
| ERD | Exposed Rigid with Diverter: A rigid shower kit and head with a diverter to a riser kit. |
| EV | Exposed Variable/Exposed Valve: exposed valve with the Mira shower comes with a variable riser kit. |
| HP | High Pressure: usually from pumped heating systems or unvented cylinders. |
| kW | Kilowatt output of the shower. |
| LP | Low Pressure: usually on gravity heating systems, mains pressure or vented cylinders. |
| Manual | The shower temperature is altered manually and can alter with changes in water supply and the temperature of the incoming water. |
| Neg Head/Negative Head | The stored water source for the shower is placed below the shower head. |
| Pos Head/Positive Head | The stored water source for the shower is placed above the shower head and is the normal type of pump used in an installation. This is sometimes called a booster pump. |
| Single Impellor/Single End | One impellor to boost water supply; used for a single cold, hot or mixed water supply. |
| Thermostatic | The shower temperature stays at the temperature set, with the shower/valve taking account of changes in water supply and temperature of the incoming water. |
| Twin Impellor/Twin End | An impellor for cold and hot water feeds. |