Examples of infrared heating panels are described as having a non-linear power density profile along a length of the heating panel. The power density profile can include a first power density zone and a second power density zone, each zone corresponding to an area of the heating panel having a separate power density in response to a current flow. An infrared heating panel can include multiple heating elements arranged adjacently in a row and electrically connected together by at least two power buses extending perpendicularly across the heating elements. In one example, the first power density zone is located between a first power bus and an end of the heating elements. The second power density zone can be located between the first power bus and an opposite end of the heating elements. Infrared sauna systems and methods of generating heat for a sauna are also provided.
