Abstract: The invention relates to an air conditioning and/or heating system (1) for a vehicle with a housing (5) which comprises at least three housing modules (7, 8) and which houses at least one component (9) of the air conditioning and/or heating system (1), wherein the housing 5 and/or housing part which comprises housing modules (7, 8) contains two housing part end modules (8) and any desired number (n=1, 2, . . . ) of at least one housing part intermediate module, (7) which is positioned between them and is configured with respect to the number and/or the size of the intermediate module(s) of the housing part depending on the structural elements (9) of the air conditioning and/or heating system (1) located between them.

Abstract: Stackable row chairs can be provided with desk assemblies for lecture hall purposes by forming a holder for the desk assembly with a pair of struts upon stirrups at their lower ends engaging the legs of the chair provided with the assembly. Connecting members can run from the stirrups to an adjoining chair to allow the desk assembly simultaneously to serve as a connecting system for joining the chairs in the row.