In a control method for the switch-on function sequence of a fuel-operated heating device, this comprises the following time periods: a pre-run phase (VPh) beginning with the switching on of the heating device, during which only outside air but no fuel is ...

The method involves having a starting procedure in a starting phase of pre-determined length of time with an electrically excitable heating arrangement (24, 26) and in a second starting phase at expiration of the first starting phase fuel is mixed with air...

Method for operating the heating system in a motor vehicle whereby the outputs of sensors upstream and downstream of a heat exchanger region are used to control the heat output of a heat source supplying heat to the heat exchanger region. An Independent cl...

The heating system has at least one first heating device (10) and at least one second heating device (12), at least one flow path between the first and second heating devices and at least one auxiliary fan (50) for producing a flow from the second heating ...

The auxiliary heating device (16) has a fuel supply (22) for supplying fuel to a burner (20) of the auxiliary heating device (16) and a control device (28) for controlling the operation of the auxiliary heating device (16). In order to further reduce the p...