What water pressure is required for Di Vapor steam showers?
While the steam unit may function on a lower water pressure we recommend a combined hot and cold water pressure of 2.5-3.0 bar. Please advise your plumber that the steam unit will require a water supply of approximately 18 litres per minute. This would be split between the hot and cold water giving 9 litres per minute for the hot and 9 litres per minute for the cold. Please check whether your combi boiler meets these advised figures.