Abstract: An assembly for use as a sun bathing spa and as a sauna, which is constructed of light weight materials, so as to be portable for use in a yard outside of and near to a residence or otherwise and which includes an air conditioning system for comfort of a person lying prone within a frame of the assembly. A heat transfer unit is disposed in a first end member of the assembly for providing warm or cooling air as the case may be, which can be directed by blowers through air passageways in side members of the assembly to be directed across the body of the person lying within a frame of the assembly to comfort the person in both low temperature and high temperature ambient environments. Transparent and foam covers can be used over the assembly to convert the latter from a sun bathing spa to a sauna.

Abstract: A heater comprising two or more heating units which are rotatably attached to each other about a common axis. Preferably, each heating unit is rotatably attached to the next successive heating unit along a vertical axis by a flanged coupling. Alternatively, each heating unit is rotatably attached to the next successive heating unit along a vertical axis by a pin and slot arrangement. Each of the heating units include a housing having at least one opening and a heater element within the housing.