A sauna having a video display device, a loud speaker device, lighting elements, an aromatherapy device, and a user interface device, and includes control circuitry which links the sauna to a remote server. The remote server provides media files for display to a user and collects and stores user profile and usage information. Multiple saunas are be linked into a network or global infrastructure so that a user's profile and usage information follow the user to any sauna connected to the network. Collected data can be used by users to track individual usage and performance metrices, and by service providers to analyze usage data and information for operational and marketing purposes.

Swimming pool or spa gas heaters, cabinets, water header manifolds, and heat exchangers therefor are provided in accordance with the present disclosure, including: gas heaters having an air gap between a cabinet and combustion chamber to reduce heat transfer to sides of the cabinet; gas heaters having a user interface that is repositionable on a top panel; gas heater cabinets including a removable top panel that can be hung on a side panel; gas heaters having a built-in dual junction box; gas heaters having a top-accessible igniter and burner that are interlocked to maintain positioning thereof; adaptable water manifolds including connectable inlet and outlet fittings that adjust effective inlet and outlet positions; heat exchangers having a plurality of tube-and-fin subassemblies arranged in a semi-circular configuration; and water manifolds including internal cartridges that divide the water manifold into a plurality of chambers for improved circulation through a heat exchanger are disclosed.

A sauna stove has a thermal cutoff formed with two parallel temperature sensors, with which heating of the stove is controlled and overheating is recognized from that that the temperature measured with the thermal cutoff exceeds a set limit value.

A system for heating a pool or spa. The system may include a circuit for interrupting the power supply to a heating element of the pool or spa. A thyristor may be used to vary the voltage supply to the heating element, such as by use of a variable resistor, capacitor, and a triac. The system may adjust the resistance on the variable resistor to control to voltage supply to the heating element, allowing a larger heating element to be used more efficiently.

A sauna heater, comprising two halogen tubes powered by alternating current, wired up in such a way that the current going through one halogen tube is opposite in phase from the current going through the other halogen tube, wherein the halogen tubes are parallel and close together so that the EMF emitted by the halogen tubes is canceled out.

Embodiments of the present application disclose a cryogenic physical therapy cabin and a cryogenic physical therapy cabin system. The cryogenic physical therapy cabin includes: a cabin body; a cabin door, which is hinged with the cabin body to form at least one sauna room; a refrigeration module, which comprises an evaporator arranged on an inner wall of the cabin body; an air outlet module, which is arranged on the cabin body and includes fan blades and a fan electrically connected to the fan blades, wherein the fan is configured to drive the fan blades to rotate to generate a circulating airflow inside the sauna room; and a main control module, which includes a controller electrically connected to the fan and the refrigeration module, wherein the controller is configured to receive a user adjustment instruction and adjust operation states of the air outlet module and the refrigeration module according to the user adjustment instruction. With the cryogenic physical therapy cabin in embodiments on the present application, the operation state can be adjusted according to the user adjustment instruction, and thereby improving the intelligence level of the cryogenic physical therapy cabin.

The present disclosure provides an atomization device for a facial steamer, including a body, an atomization sheet, a heating mechanism, and an atomizing nozzle; the body is provided with a water inlet pipeline, a water outlet, and an inlet pressure balance channel; the heating mechanism is connected with the water outlet of the body; the atomization sheet is arranged between the water outlet and the heating mechanism; the atomizing nozzle is connected with a free end of the heating mechanism; the inlet pressure balance channel is communicated with the heating mechanism; a water storage cavity is formed in the body; and the water storage cavity is located on a balance path of the inlet pressure balance channel.

Sauna heaters are used to generate heat for saunas. Sauna heaters include a first halogen tube configured to generate heat, a second halogen tube configured to generate heat, wherein the first halogen tube is implemented a distance from the second halogen, and wherein the distance between the first halogen tube and the second halogen tube is configurable to adjust an amount of electromagnetic field (EMF) emitted by the heater. Sauna heaters also include a source of alternating current electrically coupled to the first halogen tube and the second halogen tube such that the source of alternating current is configured to provide the first halogen tube and the second halogen tube with a current, wherein the current powering the first halogen tube is out of phase with the current powering the second halogen tube.

Systems and methods are provided for controlling infrared radiation (IR) sources of a sauna including tuning IR wavelength-ranges and radiated power-levels of IR sources, and directing IR to locations on a user's body. In one illustrative embodiment, a sauna may be provided having adjustable IR emitters to emit IR at any wavelength resulting in a desirable radiation treatment for the sauna user. In another illustrative embodiment, a method is provided for tuning IR emitters in a sauna.

A method, in which a fan equipped stove of a sauna is controlled automatically between an idle mode and a sauna bathing mode of the heating of the stove based on relative air humidity of the sauna; sound measured from the sauna; a measured load on benches of the sauna; a motion sensing signal measured from the sauna and/or the temperature of the stove. A controller, a stove and a sauna using the method are also described.