Abstract: A heating cooking device includes a heater, a heating chamber, an imaging unit, a lighting unit, an image processor, and a lighting controller. The heating chamber accommodates an object to be heated. The imaging unit take images of the inside of the heating chamber. The lighting unit illuminates the inside of the heating chamber. The image processor analyzes an image to detect the brightness of the object to be heated in the image. The lighting controller controls the lighting unit in response to the brightness of the object to be heated. This aspect allows the heating cooking device to accurately determine a cooking state of the object to be heated on the basis of the image of the inside of the heating chamber taken to control the heater in response to the cooking state.

Abstract: A heating cooker includes heating chamber configured to house a food, through-hole formed in a wall surface of heating chamber, an imager configured to capture an image in heating chamber through through-hole, air blower configured to blow air on an outside of heating chamber, and wind guide configured to guide wind generated by air blower. Thus, wind guide is disposed so that the wind from air blower forms an air curtain passing through space between the imager and through-hole.

Abstract: A heating cooker includes heating chamber configured to house a food, through-hole formed in a wall surface of heating chamber, an imager configured to capture an image in heating chamber through through-hole, air blower configured to blow air on an outside of heating chamber, and wind guide configured to guide wind generated by air blower. Thus, wind guide is disposed so that the wind from air blower forms an air curtain passing through space between the imager and through-hole.

Abstract: A flash water heater using a heat pump includes a heat exchanger in which a refrigerant flow path exchanges heat with a water flow path. Tap water is led directly to the water flow path, and hot water supplied from the water flow path is used. The water heater includes at least one of the following elements: 1) a load setter for setting a heating amount in the heat exchanger, and a heating controller for regulating a heating amount in response to an amount set by the load setter; 2) a heater for heating water flowing through the water flow path in the heat exchanger and water flowing the path before and after the heat exchanger; 3) plural compressors; and 4) plural heat-pump cycles. The water heater is excellent in start-up of hot water temperature when the hot water supply starts, controllability, and efficiency.

Abstract: A flash water heater using a heat pump includes a heat exchanger in which a refrigerant flow path exchanges heat with a water flow path. Tap water is led directly to the water flow path, and hot water supplied from the water flow path is used. The water heater includes at least one of the following elements: 1) a load setter for setting a heating amount in the heat exchanger, and a heating controller for regulating a heating amount in response to an amount set by the load setter; 2) a heater for heating water flowing through the water flow path in the heat exchanger and water flowing the path before and after the heat exchanger; 3) plural compressors; and 4) plural heat-pump cycles. The water heater is excellent in start-up of hot water temperature when the hot water supply starts, controllability, and efficiency.

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).