A multifunctional handle-type electrical blow dryer includes a temperature measuring device installed on a housing of the electrical blow dryer for measuring a temperature at the housing of the electrical blow dryer to obtain and output a corresponding on-site measured temperature; an on-site alarm device for performing a corresponding voice alarm operation when the on-site measured temperature is over-limit; a data testing mechanism includes an ultrasonic transmitting device, an ultrasonic receiving device and an air-temperature testing device. The ultrasonic transmitting device is installed on the high definition camera for transmitting an ultrasonic signal towards the ground and recording the time of transmitting the ultrasonic signal. The ultrasonic receiving device is installed on the high definition camera, near the ultrasonic transmitting device, for receiving the ultrasonic signal transmitting from the ultrasonic transmitting device to the ground and reflected from the ground. This invention improves the function of an electrical blow dryer.

A multifunctional handle-type electrical blow dryer includes a temperature measuring device installed on a housing of the electrical blow dryer for measuring a temperature at the housing of the electrical blow dryer to obtain and output a corresponding on-site measured temperature; an on-site alarm device for performing a corresponding voice alarm operation when the on-site measured temperature is over-limit; a data testing mechanism includes an ultrasonic transmitting device, an ultrasonic receiving device and an air-temperature testing device. The ultrasonic transmitting device is installed on the high definition camera for transmitting an ultrasonic signal towards the ground and recording the time of transmitting the ultrasonic signal. The ultrasonic receiving device is installed on the high definition camera, near the ultrasonic transmitting device, for receiving the ultrasonic signal transmitting from the ultrasonic transmitting device to the ground and reflected from the ground. This invention improves the function of an electrical blow dryer.

A hose nozzle assembly which is capable of heating water comprising an internal heating chamber with at least one heating element. The hose nozzle assembly is able to heat water from a common garden hose with the ability to control both flow rates and temperature.

The disclosed technology includes systems and methods for controlling a water heater. The disclosed systems can be configured to receive temperature data from a temperature sensor, receive flow rate data from a flow rate sensor, and receive a temperature setting. The systems can calculate a heat load rate based on at least the temperature data, the flow rate data, and the temperature setting, and can compare the heat load rate to a predetermined threshold setting. The systems can output instructions to perform a fast corrective action in response to the determination that the heat load is changing at a rate (i.e. the heat load rate) greater than, less than, or equal to the predetermined threshold setting.

An apparatus and method for heating water using tankless water heater with improved rain cap.

An apparatus and method for heating water using a tank or a tankless water heater with improved electronic control.

An instantaneous water heater is provided. The instantaneous water heater comprises a heating mechanism, comprising at least two heating components which are independent from each other; a pipeline mechanism, which is assembled on the heating mechanism; the pipeline mechanism comprises a heat exchange section for heat transfer with outside, a water inlet channel for supplying water to the heating components, and a water outlet channel for outputting hot water; the water inlet channel is at least partially surrounded by the heat exchange section; and a control mechanism, which is at least electrically connected to the heating mechanism. The heat exchange section is in contact with the control mechanism to dissipate heat from the control mechanism.

An automatically flushing water heater maintenance system may be provided, the system including a water heater and a water heater controller. The water heater may include an inlet, an outlet, and a flush outlet having a first control valve in flow communication therewith. The first control valve may be configured to control a flow of water and sediment through the flush outlet out of the water heater. The water heater controller may be configured to communicate with the first control valve by transmitting a first control signal to the first control valve, the first control signal configured to cause the first control valve to open or close as part of an automatic flushing process. As a result of the flushing, the useful life of the water heater may be extended, and/or water heater leakage alleviated. Insurance discounts may be provided based upon using the automatic water heater flushing functionality.

A heating unit for heating fluid is described having at least one electrical resistance heating element on an outer surface of a tube. At least one indexed groove is provided around a surface of the tube allowing for at least one retention clip to hold the electrical resistance heating element. A heating chamber is also provided to enclose a portion of the tube and to provide a flow channel therebetween. The heating chamber includes an optical sensor to detect overheating of the at least one electrical resistance heating element. Fluid is heated by flowing over the surface of the at least one electrical resistance heating element and through the tube.

The present invention discloses a tubular thick film heater protection apparatus, including: an upper tube, where the upper tube includes an upper tube side surface and a toroid; an outer ring surface of the toroid is integrally connected to an upper portion of the upper tube side surface, a flange downwardly extends along an inner ring surface of the toroid, and a space between the flange and an inner side wall of the upper tube side surface forms an upper groove; and a base, where the base is provided with a lower groove, the base is provided with an elastic contact piece, and a terminal contact of the elastic contact piece can be connected to an electrode through contact; and the base is provided with a wiring terminal. The present invention further discloses a tubular thick film heater with a protection function.