Hot tap water appliance configured to deliver hot tap water to a user, comprising: - a heat exchanger with an inlet channel connected to a cold tap water feed for tap water to be heated and an outlet channel with which hot tap water is discharged, wherein the heat exchanger is configured to heat cold tap water supplied via the cold tap water feed; - a flow controller, comprising; - a housing comprising at least three channels (20, 22, 24); - a branching chamber which is arranged in the housing and in which the at least three channels (20, 22, 24) debouch; - a shut-off valve, with which at least two of the three channels can be closed partially, being arranged in said branching chamber; - wherein the shut-off valve has an adjustment range with a first extreme position in which a first channel and a second channel of the at least three channels are in flow connection with each other via the branching chamber and in which the first channel and a third channel of the at least three channels are substantially closed off from each other; - a bypass channel; - at least one temperature sensor close to a hot water side of the heat exchanger, in a flow direction before a connection of the bypass channel to the outlet channel, for determining the temperature of the hot tap water leaving the heat exchanger; and - an electronic controller configured to drive the shut-off valve subject to the hot tap water temperature detected with the at least one temperature sensor, characterized in that - the flow controller is arranged on a cold water side in the cold tap water feed; - the first channel is a feed channel; - the second channel is a first discharge channel which is in flow connection with the inlet channel of the heat exchanger; - the third channel is a second discharge channel which is in flow connection with the bypass channel; and - wherein the bypass channel extends downstream of the flow controller and is in flow connection to the outlet channel of the heat exchanger so that, depending on a position of the shut-off valve in the branching chamber of the flow controller, heated tap water from the outlet channel of the heat exchanger and cold tap water directed from the cold tap water feed through the bypass channel is mixable at the connection of the outlet channel and the bypass channel downstream of the flow controller and dischargeable in a mixed state via a water outflow of the hot tap water appliance. - a heat exchanger with an inlet channel connected to a cold tap water feed for tap water to be heated and an outlet channel with which hot tap water is discharged, wherein the heat exchanger is configured to heat cold tap water supplied via the cold tap water feed; - a flow controller, comprising; - a housing comprising at least three channels (20, 22, 24); - a branching chamber which is arranged in the housing and in which the at least three channels (20, 22, 24) debouch; - a shut-off valve, with which at least two of the three channels can be closed partially, being arranged in said branching chamber; - wherein the shut-off valve has an adjustment range with a first extreme position in which a first channel and a second channel of the at least three channels are in flow connection with each other via the branching chamber and in which the first channel and a third channel of the at least three channels are substantially closed off from each other; - a housing comprising at least three channels (20, 22, 24); - a branching chamber which is arranged in the housing and in which the at least three channels (20, 22, 24) debouch; - a shut-off valve, with which at least two of the three channels can be closed partially, being arranged in said branching chamber; - wherein the shut-off valve has an adjustment range with a first extreme position in which a first channel and a second channel of the at least three channels are in flow connection with each other via the branching chamber and in which the first channel and a third channel of the at least three channels are substantially closed off from each other; - a bypass channel; - at least one temperature sensor close to a hot water side of the heat exchanger, in a flow direction before a connection of the bypass channel to the outlet channel, for determining the temperature of the hot tap water leaving the heat exchanger; and - an electronic controller configured to drive the shut-off valve subject to the hot tap water temperature detected with the at least one temperature sensor, - the flow controller is arranged on a cold water side in the cold tap water feed; - the first channel is a feed channel; - the second channel is a first discharge channel which is in flow connection with the inlet channel of the heat exchanger; - the third channel is a second discharge channel which is in flow connection with the bypass channel; and - wherein the bypass channel extends downstream of the flow controller and is in flow connection to the outlet channel of the heat exchanger so that, depending on a position of the shut-off valve in the branching chamber of the flow controller, heated tap water from the outlet channel of the heat exchanger and cold tap water directed from the cold tap water feed through the bypass channel is mixable at the connection of the outlet channel and the bypass channel downstream of the flow controller and dischargeable in a mixed state via a water outflow of the hot tap water appliance.