About Shower Bar Mixer Valve
Installing a thermostatic shower bar mixer valve has some great benefits, including more efficient use of your hot water supply - perfect if you have a back boiler system. A shower bar mixer valve is a relatively small fitting that can either be exposed, or concealed inside a wall with only the controls on show, allowing for a sleeker and cleaner look for your shower.
One of the main benefits from a thermostatic mixer valve is that it will give your shower a constant temperature, as the valve provides better control. They also come with a safety cut off built in, so if the water becomes too hot or the cold water somehow fails, you won't be scalded or dowsed with freezing water; a particular benefit for the elderly, disabled, or families with small children.
A mixer shower is great if you have a good supply of hot water, but if your supply is limited, the water will gradually get colder as your hot water runs out. Thermostatic shower bar mixer valves operate at the very minimum of 0.1 bar water pressure, but it is recommended you go for at least 0.5 minimum bar to get the most out of your shower. Because of this, it may be an idea to fit a pump before installing your shower bar mixer valve.
Thermostatic shower bar mixer valves work best with showers that have a twin impeller pump, as both the hot and cold water can then be boosted to ensure you get equal pressure when the water arrives at the mixer valve. Only boosting one feed will stop the valve from delivering the right temperature of water efficiently.