Improved, aesthetically appealing enclosure assemblies, such as dry saunas (20), are provided which eliminate unsightly threaded fasteners and other external connection hardware, while also affording an easy method of construction. The saunas (20) include a base panel (22), upright panels (24) and a top panel (26) cooperatively defining the sauna enclosure (28). The interconnection between the upright panels (24) is achieved through the use of complemental, magnetic coupler bodies (70,72,92,94,108,110) which are sized and located for direct, face-to-face contact and consequent strong magnetic attraction. The saunas (20) are equipped with internal far infrared heaters (30,32) which are likewise magnetically mounted through the use of coupler bodies (96-100 and 152-156).