Heating device and method for operating a heating device

A method for operating a heating device, the heating device including at least one heater which is configured to heat at least one fluid, at least one fluid supply line which supplies the at least one fluid to the at least one heater for heating, at least one fluid discharge line which discharges the at least one fluid from the at least one heater after the heating, and a control and/or regulator which is configured to operate the heater in an at least partially pulsed manner, in at least one operating state, in order to set a particular temperature, the method comprising:

• mixing the at least one fluid in the fluid discharge line with fluid from the fluid supply line, upstream from an outlet,
• wherein the control and/or regulator is configured to control a valve unit at least substantially synchronously with a pulsed operation of the at least one heater by generating and/or outputting a control pulse for controlling the valve unit simultaneously to generating and/or outputting a control pulse for controlling the at least one heater.