Sauna or steam bathing cabinet for saving heat energy adapts air volume throughput to operating density by applying personal sensors to operate throttle valves after detecting body weight and contour

摘要

A switch (11) closes a power circuit (42) operating a ventilator (21) for supplying extra amounts of air via an air feeder shaft (22) while increasing numbers of air changes accordingly. If a person stands up, a spring (34) lifts the seat (31) up, the switch opens the power circuit and the ventilator stops. A time relay in the power circuit starts when the seat is first occupied and keeps the ventilator operating over a defined time span if the person stands up.