In one embodiment, the present invention includes an apparatus to heat a body. A first conductive path and/or a second conductive path include a resistive heating element that produces heat from said current. The first conductive path is coupled to redirect the current to the second conductive path and set up complementapy magnetic fields between said first and second layers. A third layer substantially blocks an electric field produced from the resistive heating element included in the first layer and/or second layer.

According to one embodiment, water storage tank has a space in an interior of the water storage tank. Water is stored in the space. The tank includes a lower enclosure, an upper enclosure, and a bonding member. The upper enclosure is positioned on the lower enclosure. The space is formed by the upper enclosure being bonded to the lower enclosure. The upper enclosure is longer than the lower enclosure in a vertical direction. The bonding member bonds the lower enclosure and the upper enclosure and is positioned between the lower enclosure and the upper enclosure. The lower enclosure has a concave part provided on the space side of the bonding member. The upper enclosure has a convex part provided on the space side of the bonding member. The convex part is engaged with the concave part.

According to one embodiment, water storage tank has a space in an interior of the water storage tank. Water is stored in the space. The tank includes a lower enclosure, an upper enclosure, and a bonding member. The upper enclosure is positioned on the lower enclosure. The space is formed by the upper enclosure being bonded to the lower enclosure. The upper enclosure is longer than the lower enclosure in a vertical direction. The bonding member bonds the lower enclosure and the upper enclosure and is positioned between the lower enclosure and the upper enclosure. The lower enclosure has a concave part provided on the space side of the bonding member. The upper enclosure has a convex part provided on the space side of the bonding member. The convex part is engaged with the concave part.

A burner (100) and a gas water heater with the same are provided. The burner (100) includes a fire line (10), the fire line (10) defines a mixing chamber (101) therein and has an inlet (102), a main outlet, and an assistant outlet. The fire line (10) includes a first sheet (11); a second sheet (12), the second sheet (12) is opposite the first sheet (11) and defines the mixing chamber (101); and a partition plate (13) provided between the first sheet (11) and the second sheet (12), the partition plate (13) is provided with the main outlet, and the partition plate (13) and at least one of the first sheet (11) and the second sheet (12) define the assistant outlet.

The present invention relates to the technical field of refrigeration, and particularly relates to a hotel-type non-outdoor-unit refrigeration system. The hotel-type non-outdoor-unit refrigeration system includes a refrigeration system and a hotel hot water supply system, the refrigeration system includes a compressor, a refrigeration end of the compressor is connected with a radiator, and a heat dissipation end of the compressor is connected with a heat sink; and the hot water supply system includes a water tank, a booster pump, a water quality purification device and a heater, the heat sink is arranged in the water tank, a tap water inlet pipe and a hot water outlet pipe are arranged on the water tank, the hot water outlet pipe is connected with the booster pump, the booster pump is connected with a water inlet of the water quality purification device, a water outlet of the water quality purification device is connected with the heater, and the heater is connected with use water outlets. According to the invention, the hotel-type non-outdoor-unit refrigeration system is small in engineering quantity, occupies a small space and has a good refrigeration effect; each guest room is independent in water use without affection of an external environment; and the hotel-type non-outdoor-unit refrigeration system is greatly convenient for the water use demands, implements effective utilization and no waste of resources, and is energy-saving and environmental-friendly.

A solar concentrator (100) comprising: a base (190); a framework (170), the framework (170) being hingedly joined to the base (190) such that the framework (170) can be rotated relative to the base (190); and a plurality of mirrors (110) arranged relative to a first axis (200) of the framework (170), such that all of the mirrors (110) are located on one side of a plane which contains the first axis (200), each mirror being fixed to the framework (170) and each mirror being arranged to reflect light travelling parallel to the first axis (200) towards a common focus which lies on the first axis (200).

Provided is a method of controlling a supply of heated water from a source including a heating appliance (301) to a plurality of water outlets (302, 303) remote from the heating appliance, the method comprising: detecting a demand for water from a first water outlet (302), identifying the demand as likely to be associated with the first water outlet (302) and setting to a first target water temperature value, associated with the first outlet, a target water temperature for the temperature at which water is supplied; detecting a demand for water from a second water outlet (303), identifying the demand as likely to be associated with the second water outlet, and resetting to a second target water temperature value, associated with the second outlet, the target water temperature at which water is supplied; wherein the demand is associated with an outlet based on a detected flow characteristic. Also provided is a hot-water supply installation having a plurality of controllable outlets, the installation including: a source of hot-water with an outlet having a controllable outflow temperature; a flow measurement device to provide data on water flow between the source and the plurality of controllable outlets; a temperature sensor to detect the outflow temperature; a memory storing parameters linking flow data to outlet identity, and associating each of the plurality of controllable outlets with a respective target temperature; a processor operatively connected to the memory, the flow measurement device, and the first temperature sensor; the processor being configured: in the event that one of the plurality of controllable outlets is opened, to determine based on a detected flow characteristic which of the plurality of controllable outlets has been opened, and then based on that determination to control the outflow temperature of the source, in accordance with stored parameters for the determined one of the controllable outlets; and in the event that another of the plurality of controllable outlets is opened, to determine which another of the plurality of controllable outlets has been opened, and then based on that determination to control the outflow temperature of the source, in accordance with stored parameters for the determined another of the controllable outlets.

The disclosed technology includes a heat exchanger assembly having a plurality of heat exchanger tubes. Each heat exchanger tube can include a baffle. The baffle can include a first end and a second end, a length of the baffle being defined as a distance between the first end and the second end, a body having a first side and a second side, a hanging portion located proximate the second end, and a plurality of fins disposed along the body. The plurality of fins can extend outwardly from the body and upwardly towards the second end at an angle relative to a central axis of the body. The plurality of fins can include a first fin positioned proximate the first end and having a first angle and a second fin positioned proximate the second end and having a second angle, the first angle being less than the second angle.

A method of controlling a temperature of water delivered by a water heating system, includes providing communication device which is adapted to receive a communication from at least one mobile device, the communication device being located so as to determine when the at least one mobile device is within a predefined zone in which is located a pre-selected water access point. In response to a determination that the at least one mobile device is within the predefined zone, enabling a user selecting a temperature setting of the where the water heating system. The selection is wirelessly communicated to a receiver which is in communication with the water heating system.

A method of controlling a temperature of water delivered by a water heating system, includes providing communication device which is adapted to receive a communication from at least one mobile device, the communication device being located so as to determine when the at least one mobile device is within a predefined zone in which is located a pre-selected water access point. In response to a determination that the at least one mobile device is within the predefined zone, enabling a user selecting a temperature setting of the where the water heating system. The selection is wirelessly communicated to a receiver which is in communication with the water heating system.