A vehicle heating, ventilation, and air conditioning unit includes a seating assembly that has a seat air duct assembly disposed within an interior of the seating assembly. A heating, ventilation, and air conditioning assembly includes a housing having a first surface and a second surface. The seating assembly is disposed on the first surface of the housing. A seat-directed duct is disposed within the housing. The seat-directed duct is in fluid communication with the seat air duct assembly and an intake defined by the housing. A condenser is disposed within the housing proximate to the intake and an evaporator is disposed within the housing proximate to an inlet of the seat-directed duct.

A condensation water draining system for a vehicle, in particular an electric vehicle having a support structure and a conditioning unit; wherein, the draining system has a conduit for the condensation water made, at least partially, within a hollow portion, which is part of the support structure of the vehicle.

The present invention extends to wagons with a bathroom module and standalone bathroom modules. A bathroom module includes a water heater connected to a sink, a shower, and a toilet. The bathroom module further includes a protective layer on the exterior and an exhaust fan to facilitate the management of moisture that may build up within the bathroom module. The bathroom module can be connected to various systems provided by a wagon, such as water, gas, electrical, A/C, heat, and sewer systems connected to external sources. Alternatively, the bathroom module can standalone and include its own water, gas, electrical, A/C, heat, and sewer systems connected to external sources. Thus, when paired with a companion wagon, the bathroom module may be installed or removed as desired.