Fuel connection unit

A vehicle heater comprising:

• a heater body comprising a circumferential wall enclosing an interior with a fuel connection unit mounting opening provided in the circumferential wall;
• and
• a fuel connection unit received in the fuel connection unit mounting opening, the fuel connection unit comprising:
• a connection unit body to be mounted on a heater body;
• a fuel release line connection area, which is configured to be positioned to mesh with or face an interior of the heater body, for connecting a fuel release line extending in the interior of the heater body;
• a fuel feed line connection area to be positioned exposed on an outer side of the heater body for connecting a fuel feed line,
• wherein:
• the fuel release line connection area comprises a release pipe projecting from the connection unit body;
• a connection formation is provided on an end area of the release pipe for a fluid-tight connection of a fuel release line to the release pipe;
• and
• the end area is located at a distance from the connection unit body, wherein:
• the connection formation comprises at least one sealing element with a sealing element insertion opening;
• and
• the at least one sealing element is received in a release opening area of the release pipe and is connected in a fluid-tight connection to an inner circumferential surface of the release opening area and the connection formation provides a funnel-shaped fuel release line opening,
• wherein:
• the connection formation comprises an insertion element providing the funnel-shaped fuel release line insertion opening;
• and
• the at least one sealing element is held by the insertion element in the release opening area.

A fuel connection unit for a fuel-operated vehicle heater, the fuel connection unit comprising:

• a connection unit body to be mounted on a heater body;
• a fuel release line connection area, which is configured to be positioned to mesh with or face an interior of the heater body, for connecting to a fuel release line extending in the interior of the heater body;
• a fuel feed line connection area to be positioned exposed on an outer side of the heater body for connecting a fuel feed line;
• the fuel release line connection area comprising a release pipe projecting from the connection unit body, the release pipe having an end area defining a release opening area having an inner circumferential surface, the end area being located at a distance from the connection unit body;
• a connection formation provided on an end area of the release pipe for a fluid-tight connection of a fuel release line to the release pipe, the connection formation comprising a sealing element with a sealing element insertion opening, the connection formation comprising an insertion element providing a funnel-shaped fuel release line opening;
• the sealing element being received in the release opening area of the release pipe and being connected in a fluid-tight connection to the inner circumferential surface of the release opening area;
• the insertion element having a section arranged inside the inner circumferential surface of the release opening area.