Abstract: A sauna having various heating, lighting, or other electrically operated elements is equipped with galvanically isolated current detection circuitry and galvanically isolated voltage detection circuitry, each in communication with a processor. The processor is operable to monitor, store and analyze voltage and current data to detect latent malfunctions and to predict and prevent future malfunctions, and to provide reports to users or operators. In various embodiments the processor may alert users to malfunctions or potential problems and may further actuate circuitry to cut power to the sauna upon detection of a malfunction.

Abstract: A portable, personal therapy chamber for provision of radiation therapy. The therapy chamber includes a pair of telescopically positionable units that are lightweight and easily portable by a single user. The therapy chamber is configured for use by a single person lying generally prone on a surface. The units are formed from a plurality of pivotably coupled panels that are foldable in a first direction to a rolled up, tube-like storage configuration and unfoldable in a second direction to an arched formation or use configuration. The units, in the use configuration, are disposed to overlie the user and include a plurality of emitters that direct infrared energy toward the user's body.