Example embodiments relate to a device for heating a medium and air. A heating source generates thermal energy by the combustion of a fuel-air-mixture. A heat exchanger serves to heat air passed along an exterior side, has an interior space into which flue gas generated during combustion of the fuel-air-mixture flows, has a fin structure on the exterior side, and transmits thermal energy to the medium pipe. The electric heating element generates thermal energy, the heat exchanger having integral structures for accommodating the electric heating element and the medium pipe. The medium pipe and the electric heating element are guided around the interior space of the heat exchanger.

A vehicle heating system includes a fuel-operated heater (16) with a burner area (18), with a combustion air blower (20) for feeding combustion air to the burner area (18). A fuel pump (26) feeds fuel to the burner area (18). An actuating device (40) actuates the combustion air blower (20) and the fuel pump (26). The actuating device (40) is configured to actuate the combustion air blower (20) and the fuel pump (26) to carry out a fording operation upon receipt of a fording state information.

A combustion air blower, especially side channel blower, for a fuel-operated vehicle heater, includes a blower housing (38). An air flow space (44), through which combustion air being fed can flow, is formed in the blower housing (38). Air flowing over an inlet area (55) into the air flow space (44) flows to a feed area enclosing a feed wheel (48). At least one hydrocarbon storage element (70, 88) is formed in the air flow space (44), for storing gaseous hydrocarbon present in the air flow space (44).

The invention relates to a burner (10), particularly for vehicle heaters, comprising a flexible panel (12) that separates an inner combustion region (14) from an outer region (16), a light-sensitive sensor for flame recognition being arranged in the outer region (16), and the flexible panel (12) comprising at least one light opening (20) that allows the passage of light from the inner combustion region (14) into the outer region (16). According to the invention, the light opening (20) is also provided so as to allow the passage of combustion air from the outer region (16) into the inner combustion region (14). The invention also relates to a vehicle heater.

The invention relates to a heating device, preferably a fuel-operated heating device for a vehicle, comprising the following: a heat exchanger for heating a fluid in a heating device volume through which flow can pass; a burner device, which has a burner flange, the burner device being disposed within the heat exchanger; and an exhaust gas outlet for discharging exhaust gases from the heating device; a catalytic converter element, which is disposed between the burner flange and the heat exchanger; a spacer which can be attached to the burner flange and which has a height with respect to an exhaust gas flow direction in order to at least one of: position and fix the catalytic converter element in a predefined position near the exhaust gas outlet.

A heat exchanger arrangement (10), especially for a fuel-operated vehicle heater, includes an outer pot-shaped housing (12) having an outer bottom wall (16) and an outer circumferential wall (18) extending along a longitudinal axis (L). An inner pot shaped housing (14) has an inner bottom wall (20) and an inner circumferential wall (22) extending along the longitudinal axis (L). A flow space (24) for fluid whose temperature is to be regulated is formed between the inner housing (16) and the outer housing (12). At least one liquid uptake volume (46, 48) for taking up liquid condensed in the inner housing (14).

A vehicle heater includes a combustion chamber assembly unit (18) to be fed with fuel and combustion air, a housing (22) with a circumferential wall (24) defining a combustion air flow space (26), a combustion air blower (30) adjoining an end face (28) of the circumferential wall (24) of the housing (12) in the direction of a housing longitudinal axis (L), a fuel feed line and a sealing formation with a first sealing formation area arranged between the end face (28) of the circumferential wall (24) and the blower housing (32). A second sealing formation area (62) is positioned to mesh with a fuel feed line passage opening (38) for establishing a closure between the circumferential wall (24) and the fuel feed line (36). The sealing formation (56) includes a sealing element (54) providing the first sealing formation area (58) and the second sealing formation area (62).

A vehicle heater housing (46) has an inlet area (49), an outlet area (51) and an air flow space (47) for air to be heated with a burner chamber assembly unit (30), to be fed with combustion air and fuel. A heat exchanger area (11), including a heat exchanger housing (12), is elongated in the direction of a housing longitudinal axis (L) with an outer side (24) around which air flowing in the air flow space flows. Heat transfer ribs are on a side of the heat exchanger housing. The heater housing has a housing circumferential wall (56) and an outlet front wall area (58). The heat transfer ribs have a longitudinal edge (64) extending along the housing circumferential wall and a radial edge extending along the outlet front wall area. A distance of the radial edge from the outlet front wall area changes from radially outwards to radially inwards.

A vehicle heater combustion chamber assembly includes a housing area (14) with an ignition element mount (36) supporting an ignition element (34) and another housing area (16) defining a fluid flow space (26) with an access opening (32). The ignition element or/and an electric ignition element line (76) is moveable through the access opening. An elastically deformable closing element (40) closes the access opening and includes a meshing area (48), interacting with a housing area wall (42) surrounding the ignition element access opening and including an inner meshing area supported relative to an inner surface of the wall, which faces the fluid flow space. The closing element includes a closing element bottom (44) with an outer bottom surface (94) oriented outwardly, in the direction away from the fluid flow space. The outer bottom surface is offset in a direction of a closing element longitudinal axis towards the fluid flow space.

A carrier device for mounting a preferably fuel-operated heater (34) on a vehicle. The carrier device includes a mounting area (20) for mounting the carrier device (14) on a vehicle and a carrying area (152) for mounting a heater (34) on the carrier device (14). A combustion air line area (52) is provided for sending combustion air to a combustion air inlet (55) of a heater (34), or/and a heat transfer medium line area (60) is provided for sending heat transfer medium flowing in a heat transfer medium circuit (176) of a vehicle through the carrier device (14) or/and to or from a heat exchanger area (38) of the vehicle heater (34).