Systems may include a heater including a plurality of heating elements that may include a first heating element configured to generate heat based on a first current, and a second heating element configured to generate heat based on a second current. Systems may further include an electromagnetic (EM) radiation reducing device configured to cancel electromagnetic emissions from the heater. The EM radiation reducing device may include a first EM radiation reduction element positioned adjacent to a first side of the heater, and a second EM radiation reduction element positioned adjacent to a second side of the heater, where the first and second EM radiation reduction elements have geometries configured based, at least in part, on the heater.

Modular infrared heater units for a sauna and methods for constructing a sauna. The infrared heater units include one or more heating elements disposed in a housing. The housing is configured for direct mounting on walls of a structure and includes a pigtail for coupling to a controller. The housing is dimensioned to accommodate a paneling or other cladding on the walls and includes a trim frame that obscures edges of the cladding adjacent to the heater unit. Construction of a sauna unit includes mounting of a plurality of the heater units on walls of the structure; electrically communicably coupling the heater units to a controller; and providing any desired cladding to the interior of the structure.

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 modulating heater system for a pool or spa includes a pool or spa heater capable of variably modulating energy output thereof and a controller communicatively coupled thereto. The controller determines a predicted load based on a previous load, ambient and water temperatures, and estimated pool/spa size, and determines an overshoot setpoint for an operational mode. The controller establishes a target temperature setpoint for the mode and receives a current water temperature. The controller determines whether the overshoot setpoint plus target temperature setpoint is greater than the current water temperature, and determines an error based thereon. The controller determines if the error is less than or greater than a target for the mode, and, based on this determination, determines a heater modulation rate for the mode taking into account the mode, maximum heater output, and available fuel supply. The controller controls the heater to operate at the determined modulation rate.

The heating system for a sauna comprises an oven and an accumulator. The heating system is electrically connectable to a mains which provides a first electrical power. The accumulator is provided to provide a second electrical power. The oven is operable with the first and second electrical powers to increase the thermal power.

Systems include a receiving port configured to receive a cartridge configured to store a material capable of being aerosolized, a sensor configured to generate one or more measurements based on ambient conditions of a housing, an aerosolizer configured to aerosolize the material in response to receiving a signal, and a controller comprising one or more processors configured to generate the signal provided to the aerosolizer, and further configured to control operation of the aerosolizer via the signal.

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.

A sauna having heating and lighting elements includes control circuitry which links the sauna to a remote server. The remote server provides information and media files for presentation 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.

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 include a receiving port configured to receive a cartridge configured to store a material capable of being aerosolized, a sensor configured to generate one or more measurements based on ambient conditions of a housing, an aerosolizer configured to aerosolize the material in response to receiving a signal, and a controller comprising one or more processors configured to generate the signal provided to the aerosolizer, and further configured to control operation of the aerosolizer via the signal.