A beverage preparation device, in particular a coffee maker, including at least one water pump for supplying water to a first continuous-flow heater (17), which is embodied for generating hot water, and to a second continuous-flow heater (18), which is also embodied for generating hot water and/or for generating steam, and having a control unit for controlling the at least one pump as well as the continuous-flow heaters (17, 18) for realizing different operating modes. According to the invention, provision is made for the first continuous-flow heater (17) to be connected to a first inlet (3) of a manifold valve (21) via a first connecting line (20) and for the second continuous-flow heater (18) to be connected to a second inlet (1) of the same manifold valve (21) via a second connecting line (22), and for the manifold valve (21) to be embodied in such a manner that the first inlet (3) and the second inlet (1) are fluidically connected to separate outlets in a first switch position and that the first inlet (3) as well as the second inlet (1) are fluidically connected to a common outlet in a second switch position.