Air Outlet, Heater or Air Conditioning Unit With Such an Air Outlet, Recreational Vehicle With an Air Outlet, Heater and/or Air Conditioning Unit and Methods for Attaching, Operating and Converting an Air Outlet

A method for attaching an air outlet to a desired attachment surface or section, comprising the steps of:

• attaching an attachment housing of an air outlet to a respective attachment surface with a corresponding attachment structure, and
• coupling a main housing of the air outlet to the attachment housing of the air outlet with a combined process of engaging latching elements or sections and engaging threaded elements or sections of the main housing with corresponding elements or sections on the attachment housing.

A method for converting an air outlet in a configuration in which a main housing of the air outlet is coupled to a corresponding attachment housing of the air outlet, and the main housing with a flap and a coupling mechanism, comprising the steps of:

• decoupling the main housing with the flap and the coupling mechanism from the corresponding attachment housing and replacing by another component having an alternative main housing;
• and
• wherein the alternative main housing is coupled to the corresponding attachment housing and comprises a non-movable end cap, the non-movable end cap having ventilation openings.