boiler installations uxbridge

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    When a hotwater tap is opened
    Added: 2018-06-29 | Category: boiler service | Comments: 0

    When a hot-water tap is opened, cold water enters the tank through the dip tube and the drop in temperature triggers the thermostat and element at the bottom as the water at the top of the tank is replaced by cool water, the temperature at the top thermostat drops and its element kicks in when the tap is turned off, the heating elements continue.