Vehicle heater

A vehicle heater, comprising:

• a heater housing, which is elongated in a direction of a housing longitudinal axis, the housing comprising a housing circumferential wall defining a combustion air flow space in a radially outward direction;
• a combustion chamber assembly unit carried on the heater housing, with a combustion chamber receiving combustion air from the combustion air flow space;
• a combustion air blower comprising a combustion air blower housing carried on the heater housing, wherein a combustion air inlet opening is provided in the combustion air blower housing for an intake of combustion air into the combustion air blower;
• a combustion air connection unit carried on the heater housing and comprising a plate-shaped connection unit body, wherein the connection unit body is positioned with a first body side located opposite an outer side of the housing circumferential wall and an outer side of the combustion air blower housing, a combustion air passage duct of the combustion air connection unit being provided at the connection unit body, the combustion air passage duct being open in an outward direction in a first duct opening area for receiving combustion air and being open towards the combustion air inlet opening in a second duct opening area;
• and
• a single sealing element, which gastight seals the combustion air blower housing in relation to the heater housing, gastight seals the combustion air blower housing in relation to the combustion air connection unit and gastight seals the heater housing in relation to the combustion air connection unit.