A system for producing hot tap water, and a method of producing hot tap water

摘要

A system for producing hot tap water, said system comprising a boiler, said boiler comprising — a lumen for holding tap water — an inlet for tap water for passing water into the lumen, — an outlet for discharging hot tap water from the lumen, and — an electrical heater for heating water, which water in use is stored in the lumen of the boiler. To combat Legionella, the system comprises a heat exchange unit allowing water from the outlet and to the inlet to be in a co—current heat—exchanging relationship.