Heat transfer unit, heating unit and heating device for recreational vehicles and recreational vehicles

摘要

A heat transfer unit (6A) for a heating device (1) for a leisure vehicle for transferring heat from a heated gas to a liquid, in particular to water, comprising: a gas line (60A) configured to receive and transport the heated gas; and a heat transfer tank (504A) configured to contain the liquid, the gas line (60A) having a gas inlet (603A), a gas outlet (604A) and a first heat transfer zone (601A) surrounded by a corresponding chamber, and a second heat transfer zone (602A) surrounded by a corresponding gas tube, the chamber surrounding the first heat transfer zone (601A) being coupled to the gas inlet (603A), the gas tube surrounding the second heat transfer zone (602A) being coupled to the first Heat transfer zone (601A) is coupled chamber and the gas outlet (604A) is coupled to the gas pipe surrounding the second heat transfer zone (602A), wherein the gas line (60A) is geometrically shaped so that the gas inlet (603A) into the gas line (60A ) entering heated gas due to convection first through the first heat transfer zone (601A) and then through the second heat transfer flow zone (602A) must flow before it can leave the gas line (60A) through the gas outlet (604A), wherein the chamber surrounding the first heat transfer zone (601A) and the gas tube surrounding the second heat transfer zone (602A) are provided within the heat transfer tank (504A), characterized in that the chamber surrounding the first heat transfer zone (601A) is provided as a triangular chamber and that second heat transfer zone (602A) surrounding gas pipe is coupled in the region of one of the corners of the triangular chamber with the triangular chamber surrounding the first heat transfer zone (601A).