A vehicle fit for habitation, in particular, a caravan, motor home or ship, comprising a heating system with a heating device for heating air inside the vehicle and/or for heating water, wherein the heating device includes an end line assembly for discharging exhaust gases of a burner or of a plurality of burners and for feeding combustion air to the burner or to the burners; and wherein the end line assembly includes at least one exhaust gas pipe section (16-1, 16-2) for discharging exhaust gases of an associated burner of the heating device and at least one combustion air pipe section for feeding combustion air to an associated burner of the heating device ; characterized in that the exhaust gas pipe section (16-1, 16-2) and the combustion air pipe section are provided relatively parallel to one another and immovable in a sleeve section , the outside of which delimits the line assembly from the surroundings; the heating device is accommodated within a compartment separated from the interior by a covering means, wherein the compartment is designed as an underfloor compartment underneath the floor of the interior; the line assembly is arranged completely outside the interior of the vehicle ; the line assembly includes a line end piece , which, on its side facing away from the heating device , forms an outlet for the exhaust gas pipe section (16-1, 16-2) and the combustion air pipe section ; the line assembly includes an extension piece , which includes at least one bent line section (32-3), which is arranged between a first extension section (32-1) and a second extension section (32-2), wherein the first extension section (32-1) is, related to the direction of flow (SA) of exhaust gas, arranged upstream of the bent line section (32-3); and that the line assembly includes a line adapter directly or indirectly connected to the heating device , on which the line end piece or the extension piece is removably mounted, especially in the style of a plug connection. wherein the heating device includes an end line assembly for discharging exhaust gases of a burner or of a plurality of burners and for feeding combustion air to the burner or to the burners; and wherein the end line assembly includes at least one exhaust gas pipe section (16-1, 16-2) for discharging exhaust gases of an associated burner of the heating device and at least one combustion air pipe section for feeding combustion air to an associated burner of the heating device ; the exhaust gas pipe section (16-1, 16-2) and the combustion air pipe section are provided relatively parallel to one another and immovable in a sleeve section , the outside of which delimits the line assembly from the surroundings; the heating device is accommodated within a compartment separated from the interior by a covering means, wherein the compartment is designed as an underfloor compartment underneath the floor of the interior; the line assembly is arranged completely outside the interior of the vehicle ; the line assembly includes a line end piece , which, on its side facing away from the heating device , forms an outlet for the exhaust gas pipe section (16-1, 16-2) and the combustion air pipe section ; the line assembly includes an extension piece , which includes at least one bent line section (32-3), which is arranged between a first extension section (32-1) and a second extension section (32-2), wherein the first extension section (32-1) is, related to the direction of flow (SA) of exhaust gas, arranged upstream of the bent line section (32-3); and that the line assembly includes a line adapter directly or indirectly connected to the heating device , on which the line end piece or the extension piece is removably mounted, especially in the style of a plug connection. <EOS>