Abstract: An apparatus for washing human privates including a water heater (12), which is connected with a water supply pipe (8) and a hot water pipe (15) such that wash water supplied from the water supply pipe (8) is heated to a proper temperature by the water heater (12) while proceeding to the hot water pipe (15) through the water heater (12). A water supply controlling device (9, 10) controls the supply of wash water to the water heater (12). A discharge device (17) is provided for discharging to the human privates the wash water heated to the proper temperature by the water heater (12), which is connected with the hot water pipe (15). An air mixing device (21) is employed for mixing air into the wash water, and a controller (32) selectively controls the amount of air mixed into the wash water by the air mixing device (21).

Abstract: In an electric warmer having a temperature sensor and a thermosensitive heater wire arranged in a body thereof, a thermal distance between the temperature sensor and the surface of the body is shorter than a thermal distance between the temperature sensor and the thermosensitive heater wire. The temperature of the thermosensitive heater wire is controlled to vary by a temperature sensing signal from the temperature sensor, thereby effecting comfortable warming of a user in response to the temperature of a thermal load formed by a contacting portion of the user's body.

Abstract: This invention provides a PTC heating wire (12), (13) of a tubular or band form which comprises a pair of electrodes (2), (2'), a PTC resistor (3) provided between the electrodes, and an insulative sheath (4) covering the electrodes and resistor, in which a numerical formula for setting a resistance, R.sub.E, within a tolerance range including an optimum resistance value is first determined. In practice, the resistance, R.sub.E, of the electrodes (2), (2') is properly determined, according to use conditions, using the numerical formula, thereby obtaining a PTC heating wire which ensures safe service.

Abstract: A warming apparatus for use during sleep includes at least one of a temperature-up timer circuit for raising a temperature of an electric heater by an amount in the range of 2.degree. C. to 6.degree. C. for a predetermined time and thereafter restoring the temperature of the electric heater to a preset ordinary temperature, and a temperature-dowm timer circuit for lowering the temperature of the electric heater by an amount in the range of 2.degree. C. to 6.degree. C. for a predetermined time and thereafter restoring the temperature of the electric heater to the preset ordinary temperature, each of the temperature-up timer circuit and the temperature-down timer circuit being actuated while the warming apparatus is in operation.

Abstract: In a bed warmer such as an electric blanket initially subject to a preparatory high temperature set value, the supply of power to a heater is controlled such that a warmer temperature is automatically recovered to a preset temperature value provided by a temperature setter from the preparatory high temperature set value when a bodily temperature detector detects that the user has goes to bed.